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Computed Tomography

Computed Tomography

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.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

Radiological Investigation I: X-ray and CT

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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 the...

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

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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...

Imaging Studies I: CT and MRI

Imaging Studies I: CT and MRI

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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Computed Tomography (CT) scan:
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Related Experiment Video

Updated: Jul 14, 2026

Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging

Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging

Published on: December 15, 2014

Breast CT.

Stephen J Glick¹

¹Department of Radiology, University of Massachusetts Medical School, Worcester, Massachusetts 01655, USA. Stephen.Glick@umassmed.edu

Annual Review of Biomedical Engineering

|May 18, 2007

Summary

Early detection of breast cancer is key. New dedicated breast X-ray computerized tomography (CT) imaging shows promise for improving diagnostic accuracy over conventional mammography, especially for certain patient groups.

Area of Science:

Radiology
Medical Imaging
Oncology

Background:

Breast cancer causes significant mortality, with early detection being crucial for survival.
Film-screen mammography has improved detection but has limitations in sensitivity and positive predictive value.
Limitations include reduced accuracy in dense breasts, younger women, and pre/perimenopausal women, along with high rates of negative biopsies.

Purpose of the Study:

To explore the potential of X-ray computerized tomography (CT) of the breast as an advancement over conventional mammography.
To investigate if improved visualization of breast tissue via CT can enhance diagnostic accuracy.

Main Methods:

Utilizing recent advancements in digital detector technology for dedicated breast CT imagers.
Evaluating prototype dedicated breast CT systems in clinical settings.

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Published on: December 9, 2022

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Last Updated: Jul 14, 2026

Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging

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Main Results:

Dedicated breast CT imagers are now feasible due to technological developments.
Prototype systems are currently undergoing clinical evaluation.

Conclusions:

Dedicated breast CT has the potential to improve diagnostic accuracy compared to conventional mammography.
Further research and clinical evaluation are ongoing to establish the role of breast CT in breast cancer screening and diagnosis.