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Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
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Lower GI Series: Barium Enema01:23

Lower GI Series: Barium Enema

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A Barium Enema, or a lower GI series, is a specialized radiographic examination designed to visualize the lower gastrointestinal tract, specifically the colon and rectum. This procedure is instrumental in diagnosing various conditions such as colorectal cancer, polyps, diverticulosis, and inflammatory bowel disease.
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
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Upper GI Series: Barium Swallow01:24

Upper GI Series: Barium Swallow

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The Barium Swallow Study, or a Barium Esophagogram, is a diagnostic imaging method used to visualize the upper gastrointestinal (GI) tract, including the esophagus, stomach, and small intestine. It employs barium sulfate, a radiopaque contrast material, to provide clear images of the upper digestive system, helping to identify abnormalities, diseases, or structural issues.
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...
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Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

4.4K
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
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Appendicitis-II: Diagnostic Studies and Management01:29

Appendicitis-II: Diagnostic Studies and Management

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Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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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...
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Related Experiment Video

Updated: Apr 20, 2026

Multimodality Diagnosis of Mesenteric Ischemia
05:07

Multimodality Diagnosis of Mesenteric Ischemia

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Intestinal malrotation--volvulus: imaging findings.

E Ballesteros Gómiz, A Torremadé Ayats, C Durán Feliubadaló

    Radiologia
    |December 3, 2014
    PubMed
    Summary
    This summary is machine-generated.

    Recognizing intestinal malrotation imaging signs is crucial for radiologists to prevent lethal midgut volvulus. Early diagnosis relies on identifying specific signs and normal variants, with upper GI series remaining the gold standard.

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    Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
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    Area of Science:

    • Medical Imaging
    • Pediatric Radiology
    • Gastrointestinal Radiology

    Background:

    • Intestinal malrotation can cause life-threatening midgut volvulus.
    • Accurate diagnosis requires recognizing specific imaging signs and normal variants.
    • Radiologists play a key role in identifying malrotation and preventing complications.

    Purpose of the Study:

    • To review key imaging signs of intestinal malrotation.
    • To emphasize the role of ultrasonography in diagnosing midgut volvulus.
    • To highlight the importance of distinguishing malrotation from normal variants.

    Main Methods:

    • Review of imaging findings for intestinal malrotation.
    • Discussion of ultrasonography, CT, MRI, and upper GI series.
    • Focus on the location of the duodenojejunal flexure.

    Main Results:

    • The location of the third duodenal portion outside the retroperitoneum is a reliable sign on ultrasonography, CT, or MRI.
    • Upper gastrointestinal series is the gold standard for confirming abnormal duodenojejunal flexure location.
    • Ultrasonography is emphasized for diagnosing midgut volvulus.

    Conclusions:

    • Radiologists must be proficient in diagnosing intestinal malrotation.
    • Early recognition of imaging signs is vital for preventing severe complications like midgut volvulus.
    • A combination of imaging modalities and clinical suspicion ensures accurate diagnosis.