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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
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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...
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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...
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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.
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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
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[Restructuring Torso CT Protocol for Radiation Dose Management].

Yuki Yamaguchi1, Masaaki Fukunaga1, Hideki Mitsui1

  • 1Department of Radiological Technology, Kurashiki Central Hospital.

Nihon Hoshasen Gijutsu Gakkai Zasshi
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Summary
This summary is machine-generated.

Setting computed tomography (CT) scan protocols by scan range significantly reduced scan length and radiation dose variability. This approach helps minimize outliers and improve dose management in CT examinations.

Keywords:
computed tomographydose managementdose trackingprotocol subdivision

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Area of Science:

  • Radiology
  • Medical Physics

Context:

  • Dose management in X-ray computed tomography (CT) is challenging due to inconsistent scan ranges across protocols.
  • Standardizing protocols based on scan range is crucial for optimizing radiation exposure.

Purpose:

  • To evaluate the effectiveness of establishing CT protocols tailored to specific scan ranges.
  • To investigate the impact of scan range-based protocols on dose metrics and outlier reduction.

Summary:

  • Computed tomography (CT) protocols were revised from general routines to range-specific ones (e.g., Chest-Abdomen, Chest-Pelvis, Abdomen, Abdomen-Pelvis).
  • Analysis of patient data revealed significant reductions in the standard deviation of scan length (77.1%) and dose length product (DLP) (65.2%) for abdomen-to-pelvis scans.
  • Identified causes of outliers included scan range, parameters, patient positioning, and implants.

Impact:

  • Implementing scan range-based CT protocols demonstrably reduces variability in scan length and radiation dose (CTDIvol, DLP).
  • This strategy effectively minimizes scan range outliers, facilitating more accurate dose analysis and management.
  • Contributes to safer and more efficient diagnostic imaging practices in computed tomography.