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Related Experiment Videos

Visualization rate and pattern of normal appendix on multidetector computed tomography by using multiplanar

Ya-Ting Jan1, Fei-Shin Yang, Jon-Kway Huang

  • 1Department of Radiology, Mackay Memorial Hospital, Taipei, Taiwan 10449, Province of China. gracilis0328@pchome.com.tw

Journal of Computer Assisted Tomography
|July 14, 2005
PubMed
Summary
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Multidetector CT (MDCT) with multiplanar reformation effectively visualizes the normal appendix in 93% of cases. This technique aids in describing appendix morphology, including diameter and location, for accurate diagnosis.

Area of Science:

  • Radiology
  • Medical Imaging
  • Gastrointestinal Imaging

Background:

  • Accurate visualization of the normal appendix is crucial for diagnosing appendicitis and other pathologies.
  • Multidetector CT (MDCT) is a widely used imaging modality.
  • Multiplanar reformation (MPR) enhances the interpretation of CT data.

Purpose of the Study:

  • To assess the visualization rate of the normal appendix using MDCT with MPR.
  • To characterize the morphologic patterns of the visualized normal appendix.

Main Methods:

  • Retrospective review of MDCT scans from 108 consecutive patients.
  • Radiologist assessed axial, coronal, and sagittal MPR images.
  • Recorded visualization status and morphologic features (location, diameter, lumen content).

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Main Results:

  • The normal appendix was visualized in 93% of patients without a history of appendectomy.
  • High sensitivity (93%) and specificity (100%) for appendix visualization were achieved.
  • Mean appendix diameter was 5.6 mm; factors like ascites or poor pericecal fat impacted visualization.

Conclusions:

  • MDCT combined with MPR offers a high visualization rate for the normal appendix.
  • This technique is valuable for detailed morphologic assessment of the appendix.
  • MPR improves the diagnostic confidence in evaluating the normal appendix on MDCT.