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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.
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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.
Description of the Procedures
Computed Tomography (CT) scan:
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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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Related Experiment Video

Updated: Jun 17, 2026

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Published on: January 22, 2018

Acquisition parameters for oncologic imaging with a new SPECT/multislice CT scanner.

Rodolfo Núñez¹, William D Erwin, Richard E Wendt

¹Department of Nuclear Medicine, unit 1264, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030-1439, USA. directormedico@petmadrid.com.

Molecular Imaging and Biology

|January 6, 2010

Summary

Single photon emission computed tomography/computed tomography (SPECT/CT) combines functional and anatomical imaging for improved cancer diagnosis. This hybrid modality offers faster, more convenient patient evaluation with significant clinical implications.

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Dynamic Contrast Enhanced Magnetic Resonance Imaging of an Orthotopic Pancreatic Cancer Mouse Model

Dynamic Contrast Enhanced Magnetic Resonance Imaging of an Orthotopic Pancreatic Cancer Mouse Model

Published on: April 18, 2015

Area of Science:

Nuclear Medicine
Radiology
Medical Imaging

Background:

Single photon emission computed tomography/computed tomography (SPECT/CT) integrates functional-metabolic SPECT data with anatomical CT data.
This hybrid imaging approach leverages advanced dual-headed gamma cameras and multislice CT scanners.

Purpose of the Study:

To detail the acquisition, processing, and display of SPECT/CT.
To review performance characteristics, installation requirements, and current/future applications of SPECT/CT scanners.
To highlight the diagnostic advantages of combined SPECT and CT imaging.

Main Methods:

Review of SPECT/CT acquisition, processing, and display protocols.
Evaluation of performance characteristics and installation requirements for hybrid scanners.
Analysis of current and potential clinical applications in oncology.

Main Results:

SPECT/CT provides high-resolution SPECT (down to 5 mm) and CT (down to 1.25 mm) images.
The combined imaging offers a diagnostic advantage, enabling faster and more convenient diagnoses.
Investigated applications include oncologic imaging (bone, lymph, infection, specific tracers) and radionuclide therapy planning.

Conclusions:

SPECT/CT offers significant diagnostic advantages for a wide range of oncologic conditions.
This evolving hybrid imaging modality is becoming integral to cancer patient evaluation.
The combined functional and anatomical information facilitates improved diagnostic accuracy and patient management.