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Related Concept Videos

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
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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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Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
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Related Experiment Video

Updated: Aug 11, 2025

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
07:41

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Imaging Classification of Constipation.

Kei Ishimaru1, Hiroshi Kakuto2, Shungo Yukumi3

  • 1Department of Minimally Invasive Gastroenterology, Ehime University Graduate School of Medicine, Toon, Japan.

Journal of the Anus, Rectum and Colon
|February 6, 2023
PubMed
Summary
This summary is machine-generated.

Abdominal computed tomography (CT) can diagnose chronic constipation. A rectal stool CT value over 100 indicates constipation, correlating with the Bristol Stool Form Scale.

Keywords:
abdominal CTconstipationimaging classification

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Area of Science:

  • Gastroenterology
  • Radiology
  • Medical Imaging

Background:

  • Diagnosing chronic constipation can be complex.
  • Abdominal computed tomography (CT) offers potential for a simplified diagnostic approach.

Purpose of the Study:

  • To develop a straightforward imaging classification for diagnosing chronic constipation using abdominal CT.
  • To evaluate the utility of CT values in differentiating constipated patients.

Main Methods:

  • Sixty-two patients undergoing abdominal CT were analyzed.
  • CT values of rectal and cecal stool were measured and compared between chronic constipation (C) and non-constipation (non-C) groups.
  • Correlation with the Bristol Stool Form Scale (BSFS) was assessed.

Main Results:

  • A significant correlation was found between rectal stool CT values and the BSFS.
  • Rectal stool CT values were markedly higher in the C group compared to the non-C group.
  • A CT value cutoff of 100 was identified as optimal for diagnosing chronic constipation.

Conclusions:

  • Abdominal CT is a valuable tool for diagnosing chronic constipation.
  • A rectal stool CT value of 100 serves as an effective diagnostic threshold.