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Imaging Studies III: Computed Tomography

Imaging Studies III: Computed Tomography

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...

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.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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...

Imaging Studies VI: Voiding Cystourethrography and Cystography

Imaging Studies VI: Voiding Cystourethrography and Cystography

Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET

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Updated: Jun 27, 2026

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

Published on: March 3, 2023

[GIST: imaging findings].

S Taïeb¹, L Ceugnart, F Bonodeau

¹Département d'Imagerie, Centre Oscar Lambret 59020 Lille cedex. s-taieb@o-lambret.fr

Journal De Chirurgie

|December 17, 2008

Summary

This summary is machine-generated.

New targeted treatments are improving gastrointestinal stromal tumor (GIST) management. Imaging is crucial for assessing treatment response, as standard RECIST criteria are insufficient for targeted therapies.

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A Multimodal Imaging Framework to Advance Phenotyping of Living Label-free Breast Cancer Cells

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A Coregistered Ultrasound and Photoacoustic Imaging Protocol for the Transvaginal Imaging of Ovarian Lesions

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A Multimodal Imaging Framework to Advance Phenotyping of Living Label-free Breast Cancer Cells

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Area of Science:

Oncology
Radiology
Gastroenterology

Context:

Gastrointestinal stromal tumors (GIST) management and prognosis have advanced significantly.
Targeted therapies represent a paradigm shift in GIST treatment.

Purpose:

To evaluate the utility of imaging in diagnosing GIST.
To assess the role of imaging in quantifying treatment response to targeted therapies.
To highlight the limitations of RECIST criteria in evaluating targeted therapy response.

Summary:

Standard RECIST criteria, used for chemotherapy response, are inadequate for assessing targeted therapy in GIST.
Imaging plays a vital role in GIST diagnosis and monitoring treatment efficacy.
Changes in lesion structure, not just volume, are key indicators of response to targeted GIST treatments.

Impact:

This research informs the development of more accurate imaging-based response assessment methods for GIST patients.
Improved response assessment can lead to more personalized and effective GIST treatment strategies.
Enhanced understanding of imaging in targeted therapy will optimize patient outcomes in GIST.