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Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
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Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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Imaging Studies VII: Vascular Imaging01:19

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Assessing Blood pressure using a doppler ultrasound01:19

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To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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Related Experiment Video

Updated: May 3, 2026

Analysis of Cerebral Vasospasm in a Murine Model of Subarachnoid Hemorrhage with High Frequency Transcranial Duplex Ultrasound
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Ultrasound in vasculitis.

Wolfgang A Schmidt1

  • 1Immanuel Krankenhaus Berlin, Medical Centre for Rheumatology Berlin-Buch, Lindenberger Weg 19, 13125 Berlin, Germany. w.schmidt@immanuel.de.

Clinical and Experimental Rheumatology
|February 18, 2014
PubMed
Summary

Colour Doppler ultrasound effectively diagnoses large-vessel vasculitis by detecting characteristic arterial wall thickening. Early diagnosis using ultrasound, particularly in temporal and axillary arteries, can prevent serious complications like blindness.

Area of Science:

  • Vascular Medicine and Imaging
  • Rheumatology
  • Diagnostic Ultrasound

Background:

  • Large-vessel vasculitis, including giant cell arteritis and Takayasu arteritis, involves inflammation of major arteries.
  • Characteristic ultrasound findings include pathognomonic circumferential wall thickening in affected vessels.
  • Early diagnosis is crucial to prevent severe outcomes such as stenosis, occlusion, and blindness.

Purpose of the Study:

  • To highlight the diagnostic utility of Colour Doppler ultrasound in large-vessel vasculitis.
  • To emphasize the role of ultrasound in identifying specific arterial involvement and complications.
  • To underscore the importance of prompt diagnosis and treatment in managing vasculitis.

Main Methods:

  • Utilizing Colour Doppler ultrasound to examine arteries, including smaller vessels like the temporal arteries.

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  • Assessing for circumferential wall thickening, stenoses, and acute arterial occlusions.
  • Integrating ultrasound findings with standardized history and clinical examination by experienced rheumatologists.

    • Main Results:

    • Ultrasound demonstrates pathognomonic circumferential wall thickening in large-vessel vasculitis.
    • Commonly affected arteries include axillary (giant cell arteritis) and left subclavian/carotid (Takayasu arteritis).
    • Ultrasound can detect stenoses and acute arterial occlusions, with diagnosis becoming challenging after glucocorticoid treatment.

    Conclusions:

    • Colour Doppler ultrasound is a valuable, non-invasive tool for diagnosing large-vessel vasculitis.
    • Fast-track clinics and early ultrasound assessment of temporal and axillary arteries are vital.
    • Timely diagnosis and treatment initiated by rheumatologists can prevent irreversible complications like blindness.