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*  Obstetric ultrasonography
Doppler ultrasonography examinations has a thermal index (TI) of about five times that of regular (B-mode) ultrasound ... His article "Investigation of Abdominal Masses by Pulsed Ultrasound" was published in The Lancet in 1958. Donald was Regius ... 3D ultrasound Doppler fetal monitor Global Library of Women's Medicine Gynecologic ultrasonography Salomon, LJ; Alfirevic, Z; ... Also used is Doppler sonography which detects the heartbeat of the fetus. Doppler sonography can be used to evaluate the ...
*  Vein of Galen aneurysmal malformations
Color-flow imaging and pulsed Doppler ultrasonography provided anatomical and pathophysiological information regarding cardiac ... Two-dimensional echocardiography with color-flow imaging and pulsed Doppler ultrasound was used to evaluate one fetus and five ... The vein of Galen can be visualized using ultrasound or Doppler. A malformed Great Cerebral Vein will be noticeably enlarged. ...
*  Autocorrelation technique
Estimation of target velocity in pulse-doppler radar A covariance approach to spectral moment estimation, Miller et al., IEEE ... Estimation of blood velocity and turbulence in color flow imaging used in medical ultrasonography. ... Doppler Radar Meteorological Observations Doppler Radar Theory.[full citation needed] Autocorrelation technique described on p. ... It is also known as the pulse-pair algorithm in radar theory. The algorithm is both computationally faster and significantly ...
*  Tissue Doppler echocardiography
... as pulsed Doppler and by the Autocorrelation technique as colour Tissue Doppler (Duplex ultrasonography). While pulsed Doppler ... Pulsed Doppler on the other hand, is more robust against noise, as peak values are measured on top of the spectrum, and are ... Pulsed wave spectral Tissue Doppler has become a universal tool that is part of the general echocardiographic examination. Like ... Tissue Doppler echocardiography (Also called Tissue Doppler Imaging - TDI or Tissue Velocity Imaging - TVI) is a Medical ...
*  List of MeSH codes (E01)
... ultrasonography, doppler, pulsed MeSH E01.370.350.850.850.860.225 --- echocardiography, doppler, pulsed MeSH E01.370.350.850. ... doppler, pulsed MeSH E01.370.350.850.850.850 --- ultrasonography, doppler, duplex MeSH E01.370.350.850.850.850.850 --- ... ultrasonography, doppler, color MeSH E01.370.350.850.850.850.850.220 --- echocardiography, doppler, color MeSH E01.370.350.850. ... doppler, color MeSH E01.370.350.850.220.220.225 --- echocardiography, doppler, pulsed MeSH E01.370.350.850.220.228 --- ...
*  Doppler ultrasonography
The disadvantage of pulsed Doppler is that the measurements can suffer from aliasing. The terms Doppler ultrasound and Doppler ... or as an image using color Doppler (directional Doppler) or power Doppler (non directional Doppler). This Doppler shift falls ... Doppler ultrasonography is medical ultrasonography that employs the Doppler effect to generate imaging of the movement of ... Doppler ultrasonography is widely used in renal ultrasonography. Renal vessels are easily depicted by the color Doppler ...
*  Pulse-Doppler signal processing
It is also used to measure blood flow in Doppler ultrasonography. Pulse-Doppler begins with coherent pulses transmitted through ... Pulse Doppler radar may have 50 or more pulses between the radar and the reflector. Pulse Doppler relies on medium pulse ... The pulse width of each sample matches the pulse width of the transmit pulse. Enough samples must be taken to act as the input ... Transmit pulses are sent at the pulse repetition frequency. Energy from the transmit pulses propagate through space until they ...
*  Acute limb ischaemia
A Doppler evaluation is used to show the extent and severity of the ischaemia by showing flow in smaller arteries. Other ... To find out where the occlusion is located one of the things that can be done is simply a pulse examination to see where the ... The CTA and MRA are used most often because the duplex ultrasonography although non-invasive is not precise in planning ... Mechanical methods of injecting the thrombolytic compounds have improved with the introduction of pulsed spray catheters-which ...
*  Ultrasonography of chronic venous insufficiency of the legs
Since 1970, real-time scanners and pulsed Doppler, have enabled the use of ultrasound to study the function of the venous ... was made possible with the developments of Doppler and color Doppler. Doppler measurements using Doppler effect can show the ... Alongside the improving imaging technology, acoustic Doppler velocimetry and medical ultrasonography color Doppler were ... In 1963, in France, LĂ©andre Pourcelot started on his thesis, which was presented in 1964, and used pulsed Doppler for blood ...
*  Fetal circulation
Obstetric ultrasonography can also use doppler technique on key vessels such as the umbilical artery can detect abnormal flow. ... The fetal pulse pressure is ca 20 mmHg at 20 weeks of gestation, increasing to ca 30 mmHg at 40 weeks of gestation. The blood ... Transvaginal ultrasonography of an embryo at 5 weeks and 5 days of gestational age with discernible heartbeat Neonatal heart ... In the first trimester, heartbeat can be visualized and the heart rate quantified by obstetric ultrasonography. A study of 32 ...
*  Transcranial Doppler
... (TCD) and transcranial color Doppler (TCCD) are types of Doppler ultrasonography that measure the velocity ... Carotid Doppler machine Arterial resistivity index Transcranial pulsed ultrasound "Transcranial Doppler: An Overview of its ... Functional TCD uses pulse-wave Doppler technology to record blood flow velocities in the anterior, middle, and posterior ... Once the desired blood vessel is found, blood flow velocities may be measured with a pulsed Doppler effect probe, which graphs ...
*  Telangiectasia
... it is essential to have duplex ultrasonography, the test that has replaced Doppler ultrasound. The reason for this is that ... Laser therapy uses a light beam that is pulsed onto the veins in order to seal them off, causing them to dissolve. These light- ... Weiss, Robert A.; Weiss, Margaret A. (1993). "Doppler Ultrasound Findings in Reticular Veins of the Thigh Subdermic Lateral ...
*  Sonicaid
... Ltd was a medical electronics company headquartered in West Sussex best known for its range of Doppler fetal monitors ... Investigation of Abdominal Masses by Pulsed Ultrasound. The Lancet, Volume 271, Issue 7032, Pages 1188 - 1195, 7 June 1958 doi: ... building on the pioneering obstetric ultrasonography work by Prof Ian Donald and colleagues. They also developed the Sonicaid ... The word "Sonicaid" is in generic use for Doppler fetal monitors. Sonicaid is now a registered trademark of Huntleigh ...
*  Medical ultrasound
... images to display duplex ultrasonography images. Uses include: Doppler echocardiography, the use of Doppler ultrasonography to ... By using pulsed wave doppler or continuous wave doppler bloodflow velocities can be calculated. Figures released for the period ... The Doppler fetal monitor is commonly referred to simply as a Doppler or fetal Doppler. Doppler fetal monitors provide ... Doppler ultrasonography is employs the Doppler effect to assess whether structures (usually blood) are moving towards or away ...
*  Mayo Hospital
Color Doppler and Ultrasonography Renal Transplantation and Renal Hemodialysis Radiotherapy Latest Physiotherapy Equipment, ... "Indian docs ready to feel Pak pulse", The Times Of India, 20 March 2004, retrieved 20 November 2008 Ahmad, Safwan (15 April ...
*  Arterial embolism
Doppler ultrasound, especially duplex ultrasonography. It may also involve transcranial doppler exam of arteries to the brain ... Symptoms of limb infarction include coldness, decreased or no pulse beyond the site of blockage, pain, muscle spasm, numbness ...
*  Medical imaging
Radio frequency antennas ("RF coils") send the pulse to the area of the body to be examined. The RF pulse is absorbed by ... Doppler capabilities on modern scanners allow the blood flow in arteries and veins to be assessed. Elastography is a relatively ... Medical ultrasonography uses high frequency broadband sound waves in the megahertz range that are reflected by tissue to ... When the RF pulse is turned off, the protons "relax" back to alignment with the primary magnet and emit radio-waves in the ...
*  Peripheral artery disease
Duplex ultrasonography and angiography may also be used. Angiography is more accurate and allows for treatment at the same time ... If ABIs are abnormal the next step is generally a lower limb doppler ultrasound examination to look at site and extent of ... Individuals with an abnormal lower extremity pulse examination. Those with known atherosclerotic coronary, carotid, or renal ... Vowden P, Vowden K (March 2001). "Doppler assessment and ABPI: Interpretation in the management of leg ulceration". Worldwide ...
*  Outline of cardiology
Ultrasonography of the heart to inspect chambers, valves, and blood flow. Often utilizes the Doppler effect to determine blood ... Pulses: carotid, dorsalis pedis, femoral, popliteal, posterior tibial, radial, temporal, ulnar Heart rate Pulse quality: pulsus ... Pain, diminished pulses, gangrene and eventual amputation of affected hands and feet. Coronary artery disease is not currently ... Heart block - A decrease in the ability of the conduction system to transmit action pulses in the orderly manner. Blockage of ...
*  Fibromuscular dysplasia
Doppler ultrasound may be used in both the diagnosis and follow-up of FMD. The differentiating presentations are suggestive of ... Duplex ultrasonography should be performed soon after this procedure to ensure adequate renal velocities. Stents have a ... and diminished distal pulses. Complications of cerebrovascular FMD include TIA, ischemic stroke, Horner syndrome, or ... Non-invasive testing includes duplex ultrasonography, magnetic resonance angiography (MRA), and computed tomographic ...
*  Cardiac output
"Noninvasive Doppler ultrasonography for assessing cardiac function: Can it replace the Swan-Ganz catheter?". The American ... Pulse pressure (PP) methods measure the pressure in an artery over time to derive a waveform and use this information to ... uses continuous wave Doppler to measure the Doppler flow profile VTI. It uses anthropometry to calculate aortic and pulmonary ... The device uses an algorithm based on the Frank-Starling law of the heart, which states pulse pressure (PP) is proportional to ...
*  Echocardiography
... using pulsed- or continuous-wave Doppler ultrasound. This allows assessment of both normal and abnormal blood flow through the ... to traditional ultrasonography. The ultrasound contrast is made up of tiny microbubbles filled with a gas core and protein ... Color Doppler, as well as spectral Doppler, is used to visualize any abnormal communications between the left and right sides ... The Doppler technique can also be used for tissue motion and velocity measurement, by tissue Doppler echocardiography. ...
*  Varicose veins
nhsdirect.nhs.uk Weiss RA, Weiss MA (1993). "Doppler ultrasound findings in reticular veins of the thigh subdermic lateral ... People with varicose veins should now be investigated using lower limbs venous ultrasonography. The results from a randomised ... Steam treatment consists in injection of pulses of steam into the sick vein. This treatment which works with a natural agent ( ...
*  Laminitis
Ultrasonography has been explored as a way to quantify changes in bloodflow to the foot. The sooner the diagnosis is made, the ... Clinical signs at this time include bounding digital pulses, lameness, heat, and possibly response to hoof testing. Subacute ... ISBN 978-0-615-52453-5. Wongaumnuaykul, S; Siedler, C; Schobesberger, H; Stanek, C (2006). "Doppler sonographic evaluation of ... Clinical signs include foot tenderness progressing to inability to walk, increased digital pulses, and increased temperature in ...
*  Scrotal ultrasound
Color Doppler and pulsed Doppler examination is subsequently performed, optimized to display low-flow velocities, to ... Male infertility#Ultrasonography Content originally copied from: Mak, Chee-Wai; Tzeng, Wen-Sheng (2012). "Sonography of the ... With color Doppler sonography, a small to moderate amount of vascularity may be seen [Fig. 19]. Fig. 18. Fibrous pseudotumor. A ... With color Doppler, a little vascular flow is seen in this fibrous pseudotumor. Epididymitis and epididymo-orchitis are common ...