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Related Concept Videos

Imaging Studies I: CT and MRI01:14

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 IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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...
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...

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Related Experiment Video

Updated: May 13, 2026

Clinical Imaging of Microwave Mammography
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Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

The case against routine preoperative breast MRI.

Ismail Jatoi1, John R Benson

  • 1Division of Surgical Oncology, MC 7738, University of Texas Health Sciences Center, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA. jatoi@uthscsa.edu

Future Oncology (London, England)
|March 9, 2013
PubMed
Summary

Routine preoperative breast MRI for primary breast cancer is not beneficial. Additional tumor foci detected do not impact recurrence rates and may lead to unnecessary mastectomies.

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Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging
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Published on: December 15, 2014

Area of Science:

  • Oncology
  • Radiology
  • Surgical Oncology

Background:

  • Preoperative breast MRI can detect additional tumor foci not seen with standard imaging.
  • This may lead to more extensive surgeries like mastectomy or bilateral mastectomy.
  • The clinical impact of these additional foci is debated.

Purpose of the Study:

  • To assess the effect of preoperative breast MRI on clinical and surgical outcomes.
  • To review evidence regarding the routine use of preoperative MRI in primary breast cancer.
  • To highlight potential harms of routine preoperative MRI.

Main Methods:

  • Review of several large studies assessing preoperative breast MRI.
  • Analysis of clinical end points such as ipsilateral breast tumor recurrence rates.
  • Evaluation of surgical end points including reoperation rates.

Main Results:

  • Studies indicate that routine preoperative breast MRI is not beneficial for primary breast cancer.
  • Additional detected tumor foci often lack clinical significance.
  • These foci can typically be managed with radiotherapy and/or systemic therapy.

Conclusions:

  • Routine preoperative MRI in primary breast cancer patients does not improve outcomes.
  • The detection of additional foci may lead to overtreatment.
  • Potential harms include unnecessary extensive surgery and associated psychological distress.