Curvilinear probe frequency. As most are of a higher frequency, the depth is limited.
Curvilinear probe frequency Images produced always have a ⸻ 2. The curvilinear ultrasound probe has a frequency range of 2-5MHz. The High Frequency Curved Array 9C2 is a multifrequency, broad bandwidth transducer ideal for general abdominal and obstetric examinations. Aug 19, 2022 · The linear probe is a high-frequency probe. 3). Sep 7, 2025 · Ultrasound frequencies in diagnostic radiology range from 2 MHz to approximately 15 MHz. Phased Array Ultrasound Probes Another common type of ultrasound probe is the phased array. These probes are used by some practitioners for deeper ultrasound guided injections such as the hip and shoulder. This probe is designed for deep imaging and produces a large field of view ideal for abdominal scanning and obstetrics. Technology is advancing rapidly and, by the end of 2012, Siemens Corporation un-veiled the first wireless US A fluid interface placed between the transducer and tissue allows the probe to "standoff" the surface of the tissue while achieving effective acoustic coupling. Low frequency sound waves undergo less attenuation, but also offer less resolution. 5 MHz – 6. When compared to Field Aug 8, 2023 · Transabdominal ultrasound should be performed with a low-frequency probe, ideally with a large convex footprint. Dec 18, 2020 · Convex (sequential) arrays, also known as curvilinear or curved linear arrays, are similar to linear arrays but with piezoelectric elements arranged along with a curved transducer head. It is considered a low-frequency probe and has a large/wide footprint, allowing for better lateral resolution (compared to the phased array probe). The transabdominal use of a high-frequency linear transducer in the evaluation of patients in the first trimester after failed curvilinear transducer results in a clinically significant reduction in the need for transvaginal ultrasonography to confirm the presence of an IUP. Aplio's Ultra-wideband i-series, provides superior sensitivity and resolution for both near and far field. However, it is not essential to have a curvilinear probe to carry out these injections. Convex transducers emit ultrasound waves in a fan-shaped beam, making them useful for imaging structures within the body such as internal organs and deep tissues. The length of the near field (Fn) is proportional to the transducer footprint squared and inversely related to the wavelength of the probe. Use for smaller spaces You might want a high frequency probe to look at the thyroid gland or vessels in the neck. Pediatrics: High-frequency linear transducers deliver excellent resolution for imaging smaller anatomical Mar 4, 2021 · Lower frequency (1–5 MHz) curvilinear probes permit imaging of deeper structures, while providing a wider depth of field with less resolution. Curvilinear probes have a diverging field of view, large footprint and are generally lower frequency. Their primary Jan 1, 2023 · Curvilinear probes are low frequency probes that have a large footprint where the ultrasound-producing crystals are arranged in a curved orientation. GE Logiq E with High-frequency Linear and Curvilinear Probes: 9L-RS (Linear, 3. Typically used for abdominal, gyne, obstetrical and pleural scanning. Sep 25, 2020 · Slide 1: Which exam would be best performed with the linear high frequency ultrasound probe? (check all that apply). The ability to use one transducer across a wider range of patient types can potentially reduce cost, while providing better imaging. Sep 11, 2025 · Teaching Tips When instructing with a curvilinear probe: Emphasize how the scan plane expands with depth. The 2D imaging linear transducer has a wide footprint and it has a frequency ranging from 2. A low frequency curvilinear probe produces a widening beam, and with lower frequencies can give Oct 11, 2023 · The degree of beam divergence is inversely related to the frequency and physical width of the transducer. The frequency of the curvilinear transducers ranges between 2 and 7 MHz. You can use it for lung/thoracic ultrasound to look for sliding/ pleural Oct 20, 2025 · The curvilinear transducer For most clinicians this transducer has become the go to probe for lung ultrasound. Mar 10, 2016 · Ultrasound transducers are described by their type and operating frequency which can range from 2 MHz up to 20 MHz and are selected based on their ‘fitness for purpose’. Look for gallstones. This allows the soundwaves to penetrate deeply into the body and display structures that are as deep as 25 centimeters or more because low-frequency waves carry pretty Transducer Selection Transducer characteristics, such as frequency and shape, determine ultrasound image quality. High Frequency = high resolution Low frequency = low resolution Do you see the tradeoff? You cannot have high penetration (low frequency) and high resolution (high frequency) both at the same time. Our 2D oferings include curved, linear, phased array and matrix array technologies for applications including OB/GYN, general imaging, cardiac, pediatrics, peripheral vascular and small parts. Measure cardiac ejection fraction. Especially useful for breast imaging and small parts with the added feature of high-frequency Shear Wave Elastography. 5-4. Linear probe: High frequency (7-15MHz): High resolution but superficial (1-6cm) depth The C5-1 PureWave curved array transducer with 5 to 1 MHz extended operating frequency range is ideal for high performance Fetal Echo, Abdominal, Interventional, and OB/GYN applications. For a focused transducer, the best lateral resolution will be at the focal region. What can you do to improve the resolution? Use a higher frequency transducer Adjust the A lower-frequency curvilinear probe (4–7 MHz), which provides better penetration, is recommended for deeper targets such as the sciatic nerve, or for more obese patients. Learn more about the Philips Lumify C5-2 Curved Array transducer below. The probe is bigger and has a larger field of view when scanning and is ideal for abdominal organs such as the liver, kidneys, and gallbladder. a button or touching the probe icon on a screen. Jan 25, 2022 · Imaging frequency Transducer types don't only differ in the shape of the ultrasound image they create but also in the range of frequencies they can provide. High-frequency linear array transducer. The curved face gives and increased field of view, while the lower frequency allows for better penetration. 5 MHz) curvilinear transducer ‘abdominal’ requires a wide aperture. 5 MHz 3D curved probes are typically electro-mechanical using moving parts within the transducer head. Selecting an appropriate ultrasound probe for the area being examined. High frequency probes are, therefore, preferred for US imaging of superficial structures (2–4 cm), while midrange frequency probes are preferred for slightly deeper structures (5–6 cm). This one is like a slightly slower beat. Among the various components of ultrasound systems, probes are fundamental, with linear and curvilinear (curved) probes being two of the most commonly used types. The piezoelectric crystal arrangement of the linear probe is linear. has shown a clinically significant decrease in the need for radiology performed transvaginal US when the high-frequency linear probe is used for detection of early IUP not seen with the curvilinear transducer. Before purchasing an ultrasound transducer, let’s learn about types of ultrasound transducer probes and their features: Linear probe ultrasound features a linear transducer, distinguished by its linear piezoelectric crystal. Because of the deep penetration and wide field of view, curvilinear probes are particularly useful for imaging deeper structures, such as abdominal organs, and are commonly used in obstetric and gynecological examinations. It is the hand-held part of the ultrasound machine that is responsible for the production and detection of ultras May 13, 2022 · Fourier beamforming techniques for medical ultrasound imaging have largely been limited to linear transducer arrays. Lateral resolution tends to be worse than axial resolution! In a curvilinear array transducer the line density decreases with depth, which reduces the lateral resolution. Use visual trainers to demonstrate beam geometry and probe manipulation. This probe has a lower frequency with better penetration, which is suitable for imaging the pelvic organs through the abdominal wall. A probe with higher frequency (5-8 MHz), such as a linear array probe, offers better detail but only to superficial structures. A three point examination of each hemithorax allows a thorough and fast assessment. 0 MHz, for cardiac and pediatric imaging) GE Voluson P8 with High-frequency Curvilinear Probe: 4C-RS (Curvilinear, 1. Curvilinear Transducer Low frequency, and hence can be used for deep lung imaging (Figure 2) See several rib spaces Able to see B-lines and A-lines Able to see effusion and collapse Trick of the Trade: Use an ultrasound linear transducer A recent prospective study by Tabbut et al. Transvaginal ultrasound Types of Ultrasound Transvaginal Probes Transvaginal ultrasound is a test that examines a woman's uterus, reproductive organs, tubes, cervix, and pelvic area. Phase array probes also project widely but have many transducers which pulse waves independently with a certain time delay between each one. What is a Linear Ultrasound Probe? A linear ultrasound probe is designed for precision. 13). Phased Array Probe Phased array probes are designed for small acoustic windows and deep penetration. It runs on a mid-frequency range (typically 2–5 MHz), which allows for solid depth penetration—perfect for evaluating structures deeper than 6 cm. The crystals of this type of probe are arranged in a “stacked” construction, also known as a phased array. Slide 2: The correct answer includes mark epigastric vessels and evaluate for DVT. Learn about the different types of probes. Reinforce the concept that lower frequency = deeper penetration but less detail. Higher ultrasound frequencies have shorter wavelengths and provide better detail and spatial resolution (recall that axial resolution (ultrasound) = ½ ⨉ spa Aug 31, 2022 · Curvilinear probes typically have a wider footprint and are generally low frequency, more suited for viewing deeper structures of the body. Both linear transducers are used for superficial imaging, whereas the curvilinear transducer's lower frequency facilitates examination of deeper regions such as the hip (Philips iU22 Ultrasound Common applications: Arteries/veins Procedures Skin/soft tissue Eyes Thyroid Lymph notes Curvilinear probe Frequency: 2-5 MHz Imaging depth: 20-35 cm Common applications: Gallbladder Liver Kidney Spleen Abdominal aorta Phased array probe Frequency 2-5 MHz Imaging depth: 20-35 cm Common applications: Heart Lung Can also be used for abdominal A curvilinear probe operates at a lower frequency (3. The density of the scan lines decreases with increasing distance from the transducer and the image produced on the screen is a curvilinear image, which allows for a wide field of view (Figure 2 May 13, 2022 · The higher-frequency ultrasound probe, with transducer frequencies of up to 18 MHz, is most often used for interventions on the most superficial structures such as nerves of the hand and forearm [46]. 12 Higher-frequency intracavitary transducer. This probe uses a lower frequency to allow the ultrasound to travel deeper into the tissue. Mar 6, 2025 · Discover the different ultrasound transducer types and how to select the best ultrasound probe for your medical needs. Placing a fluid-filled glove between the probe and the tissue's surface moves the probe 1–2 cm away from the surface, giving better definition when scanning superficial objects. The different types of ultrasound transducers have different pros and cons, and there are many different uses for each. This is a low frequency probe with a curved face. Hockey stick probe Hockey stick probes are higher frequency (8-18MHz) and have a smaller footprint. 10 High-frequency linear array transducer. 5). Although curvilinear probes have a similar frequency range, their size will not be amenable to obtaining appropriate imaging windows in the vast majority of cases. Linear and curvilinear (or curved) transducers are most useful for nerve imaging to provide high resolution images. Fig. Higher-frequency linear transducers ensure rapid diagnostics for key assessments such as lung evaluation and immediate vascular access. We would like to show you a description here but the site won’t allow us. 3SC-RS (Sector, 1. An ultrasound probe, also known as a transducer, is a device that emits high-frequency sound waves into the body and receives echoes that create images of internal structures. The curvilinear probe is a low frequency transducer with a relatively good superficial resolution and a great depth (up to 30 cm). 3-10 MHz, specifically designed for small parts, vascular, and musculoskeletal imaging) Nov 26, 2015 · The predominant considerations with respect to probe selection are transducer array arrangement and operating frequency. Sep 24, 2025 · Explore the best portable ultrasound machines by probe type (Linear, Convex, and Phased) and their use cases, and choose the best one for your specialty or clinical setting. In contrast, high-frequency endocavitary curvilinear transducers are used for female pelvic exams due to their high resolution and small footprints. curvilinear, phased array what is the frequency range for lower frequency ultrasound probes 2-5MHz what ultrasound probe is considered higher frequency linear Curvilinear transducers are perfectly adapted for the abdominal scanning due to the curvature of the abdominal wall (Figure 2. Rule of thumb: Select the highest frequency probe (to maximize resolution) that allows adequate depth of penetration for organ you are evaluating. The field of view is wider than the footprint of the probe, creating a sector or “pie-shaped” image. " During the Study with Quizlet and memorize flashcards containing terms like Which two transducers would be considered high resolution? 3. The letter “C” stands for curved and “L” stands for linear. Curvilinear. Most common probes utilized are the curvilinear or phased array probes. The three most common ultrasound transducer types are linear, curvilinear, and phased array (Fig. 5–5. Feb 2, 2025 · If we curve those transducer elements slightly, the UBP will splay out from the probe, and we will end up with a curvilinear probe. 0 MHz, for neonatal, pediatric, and small parts imaging) GE Voluson P8 with 3D/4D Intracavitary Probe: RIC5-9W-RS (3D/4D Intracavitary, 5-9 MHz, for 3D/4D obstetrics, gynecology, and urology imaging) Identify the glenoid and humeral head Anterior Approach Select curvilinear probe (low frequency probe) Place probe to the anterior chest parallel to the glenohumeral joint Identify the glenoid and humeral head Findings In anterior and posterior shoulder dislocations, the humeral head is displaced anterior or posterior to the glenoid fossa May 15, 2020 · A high-frequency (8-12 MHz) linear probe is useful for visualizing the anterior pleural line in detail but has limited depth penetration, whereas a low-frequency curvilinear probe can be helpful for imaging the dependent lung regions, especially in larger patients. Transducers Increasing frequency improves resolution but decreases penetration Low-frequency transducer s: deep structures High-frequency transducers: superficial structures Transducer types Curvilinear: large “footprint”, best resolution centralized Use for abdominal, FAST exam Phased array: all waves originate from a single point. Transvaginal means "across or through the vagina. The difference between the flat linear rectal transducer and the rectal probe with a curved array for large animal reproduction and how to choose. Search by ultrasound system, clinical segment, application or transducer type. As most are of a higher frequency, the depth is limited. There are three basic types of probe used in emergency and critical care point-of-care ultrasound: linear, curvilinear, and phased array. Explore the wide range of Philips ultrasound transducers. Curvilinear Transducer (Low Frequency) Abdominal and pelvic imaging Aortic imaging Deep Lung imaging FAST Rapid Ultrasound in Shock (RUSH) Apr 25, 2025 · CW Doppler probes quantify blood flow and the speed of sound in the blood. The larger footprint Sep 7, 2023 · In the ever-evolving field of medical imaging, ultrasound technology stands out as a pivotal tool that has transformed diagnostic practices. Curvilinear Ultrasound Probes: Curvilinear – or convex – ultrasound probes use lower frequencies for deeper penetration and wider depth of field for viewing larger muscles and deeper structures. Linear (also sometimes called vascular) probes are generally high frequency, better for imaging superficial structures and vessels, and are also often called a vascular probe. This occurs due to the fact that the crystals are arranged in a curve, resulting in a fan-shaped ultrasound beam. Probe basics How do I know which probe I should use? Typically there are 3 different types of ultrasound probe: linear, curvilinear and phased. 0 MHz linear transducer to image a thyroid gland and the radiologist comments on the poor resolution. This means that it has good penetration where thoracic imaging is required to look further into the chest – for example through a large pleural effusion. The curvilinear probe is your general-purpose deep imaging tool. While many think the curvilinear probe is simply the “abdominal probe”, it actually offers much more. Aug 2, 2024 · Ultrasound transducer probes vary in size, shape, and function. Consider the probe to be a torch with a visible beam. . Linear probes have a frequency of 4–13 MHz, which surpasses the frequencies of both curvilinear and endovaginal probes. Linear probes are good for the anterior chest or in young children. 0 MHz), with crystals emitting sound waves in a diverging pattern, creating a sector-shaped field of view. All ultrasound examinations in this study (in both the retrospective and prospective parts) were performed with a model M9 machine by Mindray North America, using a curvilinear probe with frequency range 1–5 megahertz (model C5‐1s) or a phased array probe with frequency range 1–5 megahertz (model SP5‐1 s). This includes standard machine functionality and transducer manipulation. This means that a high-frequency (2. used to view deep structures. Like the phased array this gently curved transducer also operates at relatively low frequency (1-5MHz). Sector phased array transducers may also be used but the images are more "grainy Jan 26, 2024 · Discover the different ultrasound transducer types and how to select the best ultrasound probe for your medical needs. A phased array probe can be used but provides less clarity. Ideally, the ultrasonographer will choose the probe with the highest possible frequency with a depth that penetrates far enough to visualize the target. At the expense of penetration, the linear probe visualizes superficial layers of the skin to produce higher-resolution images [7]. 5–12 MHz) linear array probe can afford to be narrow and emit a rectangular beam, while a low-frequency (1–7. What is a curvilinear probe? A curvilinear probe uses lower frequency ultrasound allowing a deep penetration Jan 25, 2022 · Imaging frequency Transducer types don't only differ in the shape of the ultrasound image they create but also in the range of frequencies they can provide. They are widely used for: Abdominal imaging Obstetric and gynecological examinations Kidney and liver assessments 3. 5 MHz to 12 MHz. You’ll be able to see more of the organ. A curvilinear probe uses lower frequency ultrasound allowing a deep penetration and a wide depth of field, which is excellent for viewing intra-abdominal structures. Sonosite SII Common Options Sonosite SII with General-purpose Probes: rP19X (Phased Array, 1-9 MHz, for vascular, small parts, and musculoskeletal imaging) rC60xi (Curvilinear, 6-10 MHz, for abdominal, obstetrics, and gynecology imaging) Sonosite SII with High-frequency Linear and Curvilinear Probes: HFL50xx (High-frequency Linear, 5-10 MHz, specifically designed for superficial imaging The probe of choice is the phased array probe as it has lower frequency and can penetrate deeply while being able to utilize intercostal windows. Aug 19, 2022 · What is curved array transducer? Convex (sequential) arrays, also known as curvilinear or curved linear arrays, are similar to linear arrays but with piezoelectric elements arranged along with a curved transducer head. Mar 22, 2018 · Due to the nature of how probes work – using sound waves and electric waves to create images – the shape and size of the probe have significant impact on it’s ability to project various types of images. Aug 23, 2025 · An ultrasound transducer converts electrical energy into mechanical (sound) energy and back again, based on the piezoelectric effect. A transducer intended for 3D imaging has a wide field of view, with a broadband frequency of 3. Sorry about that. If done in real time, then the curvilinear probe makes needle visualization easiest (with min-imum depth and highest frequency settings) as the needle will be at 90° to the probe. Evaluate for DVT. The beam of a phased array is narrow, a triangle shape, and the near-field resolution is poorer than with many other types of probes. This technology produces a High frequency probes (10–15 MHz) and midrange frequency probes (5–10 MHz) provide better resolution but have less penetration. 9 Low-frequency curvilinear transducer. Choosing the right ultrasound transducer is vital for ultrasound-guided procedures and exams. It has a small footprint and typically a frequency Intracavity probe: Tight curvilinear probe, high frequency; choose for imaging within body cavities (eg, intraoral [peritonsillar tissues], transvaginal [ovaries], transrectal [prostate]) Probes typically have labels, such as a letter and number. 3 Briefly, here is what they found in the 81 patients studied: Mar 27, 2023 · For example, low-frequency curvilinear transducers are often used for abdominal exams because of the deep penetration and wide field of view. This work extends the angular spectrum method to curvilinear arrays and demonstrates a migration-based Fourier beamforming technique that has implications for sound speed estimation and distributed aberration correction for abdominal imaging applications. Nov 25, 2017 · The curvilinear probe projects sound waves widely in a curved fashion at low frequency making it ideal for intraabdominal imaging. The beam shape of the linear probe is rectangular, and it has a good near-field resolution. It gives you good depth with good detail – a balance between the two. We need to be aware that there is a trade-off between image Feb 21, 2017 · Types of Probes: There are three main types of ultrasound probes: curvilinear, linear and phased. Innovative transducer technology from GE Healthcare enables extraordinary vision so that you can see more in a broad range of clinical applications. Jul 16, 2020 · This chapter serves as a basic overview of ultrasound physics and image acquisition. Linear Ultrasound (Vascular) Probes are used to create high-resolution images of superficial structures near the body surface. Emergency Medicine: In time-sensitive situations like trauma or cardiac arrest, a combination of phased array and curvilinear probes are often used. Study with Quizlet and memorize flashcards containing terms like linear probe, what is curvilinear probe used for, curvilinear probe and more. A high frequency linear array probe produces a flat beam with parallel sides. The end user must recognize that different applications require an appropriately selected transducer which is best suited for a particular investigation. Mar 14, 2025 · Curvilinear (Convex) Probe Curvilinear probes generate lower-frequency waves, allowing deeper tissue penetration. This probe is compact and operates at a low frequency (typically 2–8Mhz). 5 Mhz linear 15 MHz linear 5 MHz curvilinear 10 MHz curvilinear, You used a 5. It is used for thoracic and abdominal ultrasound and can be used for the same purposes of the linear probe if greater depth is required. These probes differ significantly in design and application, making it crucial for medical Feb 7, 2022 · 3. There is a trade-off due to physics. A higher frequency probe with a large footprint will have the furthest near field. Different probes create different acoustic ‘beams’, or fields of view, the shape of which varies. They also differ in frequency, range, diagnosis type, and other specialties. width. Curvilinear (Convex) Probe • Frequency: Low to medium • Frequency: Medium • Image Characteristics: Curvilinear (Convex) Probe • Frequency: Medium • Image Characteristics: Good deep penetration with a wide field of view • Applications: Abdominal and pelvic ultrasound Evaluation of kidneys, liver, bladder, and uterus Apr 1, 2011 · Probe A probe (Fig. Ultrasound beams are emitted at 90 degrees to the transducer The current study has demonstrated that, despite the technical limitations of using the lower frequency curvilinear ultrasound probe, particularly in terms of image resolution, the measurement of RF CSA using the curvilinear probe has satisfactory agreement with the measurement obtained using the standard higher frequency linear probe. 1) with low frequency (2-5 MHz), such as a curvilinear probe, enables greater tissue penetration at the expense of anatomic image resolution. Feb 2, 2024 · Curvilinear Probe: Frequency range 2-5 MHz. These transducer connectors enable rapid interchangeability between probes without having to detach them individually from the US machine (Fig. 1. A small footprint "hockey stick" transducer is preferred in pediatric patients where a smaller surface area is being explored. 11 Low-frequency phased array transducer. Curvilinear probes generally operate at relatively lower frequencies (typically 2–5 MHz), giving greater depths of penetration but with coarser discrimination. For example, a curvilinear transducer has a relatively low frequency. Slide 3: Linear probes emit parallel sound waves, which are ideal for high resolution imaging Discover what a phased array transducer is, how it works, and the various types of phased array transducer configurations. 0 MHz A wide footprint curvilinear probe is appropriate for transabdominal pelvic imaging. On the opposite terms a low frequency probe with a small footprint has the lowest near field. 5-6. GE Healthcare offers a wide variety of high bandwidth, ergonomic transducers for a broad range of clinical applications – empowering you with advanced probe technology on your ultrasound system. It has a relatively large footprint. Jan 12, 2016 · The current study has demonstrated that, despite the technical limitations of using the lower frequency curvilinear ultrasound probe, particularly in terms of image resolution, the measurement of RF CSA using the curvilinear probe has satisfactory agreement with the measurement obtained using the standard higher frequency linear probe. Microconvex (also called Curvilinear) Probe with a frequency range of 5-10MHz (or 6-10, or 6-9) is acceptable for the entire Global FAST® Approach and its objectives. This usually varies with depth. The transducer frequencies used for peripheral nerve blocks range from 3-15 MHz. The probe The curvilinear probe is the best “all-rounder” for lung ultrasound. Feb 19, 2025 · Curvilinear probe Reasons to pick the use of a curvilinear probe: Low frequency = high resolution = high depth (deep structures) Useful for abdominal, pelvic ultrasound and in obstetrics and gynaecology Footprint designed for deeper structures Phased array/cardiac Reasons to pick the use of a cardiac probe: The curvilinear probe is a low-frequency probe with high depth of penetration. Ultrasound beams are emitted at 90 degrees to the transducer head. Sep 20, 2024 · Types of Ultrasound Probes Convex Probe A convex ultrasound transducer, also referred to as a curvlinear transducer, produces a wide field of view at a lower frequency. It offers exceptional clinical performance for a wide range of patient types including obese and technically challenging patients. Frequency Range and Image Quality: Every ultrasound transducer has a frequency range. With a battery-free transducer for lightweight control, a quick-connect platform for professional collaboration, and convenient connectivity for data sharing, Lumify brings you countless real-world applications, in real time. Diagnostic Ultrasound – Hoskins, Martin, Thrush Curvilinear Probe with a Frequency of 3. Mark epigastric vessels. kzvmwnaiknsehvbiavnrmimgspxuhfmqwxkomdwevbduwvxrchagasjkrtnlqqdewot