Evaluation of current best breast MRI sequences

Evaluation of current best breast MRI sequences

Contents

Abstract

Introduction

Hypothesis: “Evaluation the current “best practice” breast MRI sequences, with a specific discussion on T2, IR, dynamic and post contrast protocols”.

Breast anatomy

First investigation of breast lesions (before the MRI):

Mammogram: 1-2 pages

Breast Ultrasound: 1-2 pages

Breast MRI:

Pre-procedure

The field strength of breast MRI

Bi-lateral MRI breast coils

The technical procedure of the breast MRI
Current best practice sequences and method used in breast MRI:

1. Pre contrast T1 weighted imaging pulse sequence non-fat saturation

2. T2 weighted sequences

3. Inversion Recovery (IR)

4. T1 weighted imaging using Gd enhancement and dynamic images

Advantages of using T2, IR, and dynamic images in breast diagnosis

Post-processing functions for diagnosing the breast lesions

The classification of curve types based on the timing of pulse sequences following the contrast administration:

a) Image subtraction: including re-registration of pre- and post-contrast

b) Maximum Intensity Projection extracted from the subtracted information (MIP)

c) Multi-planner Image Reconstruction

5. Diffusion Weighted Image:

a) The calculation of the DWI value

b) Utilizing Echo Planner Imaging (EPI) to optimize the DWI

c) Using DWI in the evaluation of breast lesions

d) Identifying the benign breast lesions by using DWI

e) Investigation of breast cancer (malignant) by using DWI

6. Perfusion-weighted image:

Evaluation of breast lesions by using PWI

7. Magnetic Resonance Spectroscopy:

Utilization of breast spectroscopy in assessment varied breast lesions

The prediction of neoadjuvant chemotherapy response

Breast lesion evaluation

Suggested and recommended protocols for breast MRI

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