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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

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Related Experiment Video

Updated: Jul 8, 2026

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans
09:10

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans

Published on: July 12, 2022

Post-radiation dental index: development and reliability.

Mary P Walker1, Karen B Williams, Brian Wichman

  • 1Department of Oral Biology and Restorative Dentistry, University of Missouri-Kansas City School of Dentistry, Kansas City, MO, USA. walkermp@umkc.edu

Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer
|January 16, 2008
PubMed
Summary
This summary is machine-generated.

A new clinical index effectively assesses post-radiation dentition breakdown severity. This tool demonstrates high reliability and validity for evaluating dental damage after radiation therapy.

Related Experiment Videos

Last Updated: Jul 8, 2026

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans
09:10

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans

Published on: July 12, 2022

Area of Science:

  • Dentistry
  • Oral Radiology
  • Radiation Oncology

Background:

  • Radiation therapy can cause significant dentition breakdown.
  • Accurate assessment of post-radiation dental damage is crucial for patient care.
  • Existing methods for evaluating this damage may lack comprehensive assessment tools.

Purpose of the Study:

  • To develop and validate a clinical index for assessing post-radiation dentition breakdown.
  • To evaluate the reliability of the newly developed index.
  • To provide a standardized tool for quantifying radiation-induced dental damage.

Main Methods:

  • An expert panel developed a semiquantitative, ordinal lesion scale based on clinical photographs.
  • The index underwent face and content validity review by dental clinician/researchers.
  • Test-retest reliability was assessed using inter- and intra-rater agreement statistics (Spearman r, Kappa).

Main Results:

  • The developed index demonstrated excellent inter-rater reliability (r = 0.97-0.98, kappa = 0.93-0.95).
  • High intra-rater reliability and agreement were observed for both examiners (r = 0.98-0.99, kappa = 0.95-0.98).
  • The index was refined based on expert and confirmatory panel feedback.

Conclusions:

  • A novel clinical index for post-radiation dentition breakdown was successfully developed.
  • The index exhibits strong face validity and excellent reliability.
  • This tool offers a promising method for evaluating the severity of dental damage following radiation treatment.