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Related Concept Videos

Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

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Related Experiment Video

Updated: May 12, 2026

Hybrid µCT-FMT imaging and image analysis
13:45

Hybrid µCT-FMT imaging and image analysis

Published on: June 4, 2015

Modified Ultrafast Dynamic CT Myelography: Method, Outcomes, and Comparison With Noninvasive Imaging.

Hoe Jong Jeong1, So Youn Choi2, Hye Jin Yoo3,4

  • 1Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.

Journal of Clinical Neurology (Seoul, Korea)
|May 11, 2026
PubMed
Summary
This summary is machine-generated.

Ultrafast CT myelography effectively locates cerebrospinal fluid (CSF) leaks in spontaneous intracranial hypotension. The upper thoracic spine is the most common leak site, challenging prior assumptions from MRI or CT scans.

Keywords:
MR myelographyprone dynamic CT myelographyspontaneous intracranial hypotension

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Last Updated: May 12, 2026

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Published on: December 9, 2021

Area of Science:

  • Neurosurgery
  • Radiology
  • Neurology

Background:

  • Spontaneous intracranial hypotension (SIH) is often caused by cerebrospinal fluid (CSF) leakage.
  • Precisely locating CSF leaks in SIH is a significant diagnostic challenge.

Purpose of the Study:

  • To evaluate the efficacy of ultrafast CT myelography for diagnosing CSF leaks in patients with SIH.
  • To determine the most common leakage sites in Korean patients.

Main Methods:

  • Prospective data collection from 51 SIH patients undergoing ultrafast CT myelography.
  • Documentation of technical success rates and identified leakage locations.
  • Comparison of CT myelography findings with pre-procedural MR myelography for leak site prediction.

Main Results:

  • Ultrafast CT myelography achieved a 90.2% technical success rate.
  • Leakage sites were identified in 95.7% of successful examinations.
  • The most common leak site was the thoracic spine (95.0%), particularly the upper thoracic level (63.6%).

Conclusions:

  • Ultrafast CT myelography is a successful tool for localizing CSF leaks in SIH.
  • The upper thoracic spine is the predominant site for CSF leakage in this cohort.
  • Findings challenge diagnostic assumptions based on noninvasive imaging modalities like MR myelography.