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Using Diagnostic Tools to Stage Breast Cancer

2014-08-27 03:42:55 | BioPortfolio

Summary

This project is aimed at investigating the relative diagnostic and synergy of four state of the art breast imaging techniques (magnetic resonance imaging (MRI), full-field digital mammography (DMAM), ultrasound, and positron emission tomography (PET)) with respect to determining the extent of breast cancer.

Study Design

Allocation: Non-Randomized, Control: Active Control, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Conditions

Breast Cancer

Intervention

MRI, Digital Mammography, Ultrasound and Positron Emission Tomography (PET)

Location

University of Pennsylvania
Philadelphia
Pennsylvania
United States
19104

Status

Active, not recruiting

Source

University of Pennsylvania

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:42:55-0400

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Medical and Biotech [MESH] Definitions

An imaging technique using compounds labelled with short-lived positron-emitting radionuclides (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism. It has been useful in study of soft tissues such as CANCER; CARDIOVASCULAR SYSTEM; and brain. SINGLE-PHOTON EMISSION-COMPUTED TOMOGRAPHY is closely related to positron emission tomography, but uses isotopes with longer half-lives and resolution is lower.

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A method of computed tomography that uses radionuclides which emit a single photon of a given energy. The camera is rotated 180 or 360 degrees around the patient to capture images at multiple positions along the arc. The computer is then used to reconstruct the transaxial, sagittal, and coronal images from the 3-dimensional distribution of radionuclides in the organ. The advantages of SPECT are that it can be used to observe biochemical and physiological processes as well as size and volume of the organ. The disadvantage is that, unlike positron-emission tomography where the positron-electron annihilation results in the emission of 2 photons at 180 degrees from each other, SPECT requires physical collimation to line up the photons, which results in the loss of many available photons and hence degrades the image.

An imaging technique using a device which combines TOMOGRAPHY, EMISSION-COMPUTED, SINGLE-PHOTON and TOMOGRAPHY, X-RAY COMPUTED in the same session.

The creation of a visual display of the inside of the entire body of a human or animal for the purposes of diagnostic evaluation. This is most commonly achieved by using MAGNETIC RESONANCE IMAGING; or POSITRON EMISSION TOMOGRAPHY.

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