Aims and objectives
Breast carcinoma is the most common and the second most leading cause of death in women.
It is at present fully accepted that magnetic resonance imaging is amongst the most sensitive diagnostic imaging techniques for breast lesions.
DW-MR imaging (diffusion weighted magnetic resonance) provides new and different information about the biophysical properties of tissue.
The consequent reduction of macroscopic motion effect makes DWI possible in detecting and characterizing masses.
Our aim was to study the apparent diffusion coefficients of breast lesions and evaluate the role...
Methods and materials
MR examinations of 61 suspicious breast lesions were studied,
performed in the Department of Radiology; Vydehi Institute of medical science,
Bangalore.
Study lesions were assigned a final BI-RADS MRI category of 2 (definately benign),
3 (probably benign finding),
4 (suspicious abnormality),
or 5 (highly suggestive of malignancy).
All the lesions were confirmed through tissue acquisition and subsequently proven histopathologically.
MRI was performed with a 1.5-T system (Philips Achieva scanner) with an 8-channel bilateral breast coil.
The clinical breast MRI protocol included a T2-weighted fast spin-echo...
Results
61 suspicious breast lesions were presented for breast imaging,
out of which 38 turned out to be benign lesions and 23 malignant lesions on histopathological examinations.( Table 2)
MR morphology and DCE-MR kinetic curves for both benign and malignant lesions were as shown in Table 3 and Table 4.Post contrast kinetic curves were obtained for each lesion and the results showed 86% of benign lesions to be type I and no malignant lesion with type I kinetic curves was observed in our study,
14% of...
Conclusion
DWI is a useful technique for characterizing breast tumors,
especially for lesions that cannot be adequately characterized by mammography (dense breast),
ultrasonography and routine magnetic resonance imaging.
(BIRADS 3)
Based on our data we found that:
·Most of the malignant lesions (67%) on MRI show spiculated appearance and all showed irregular margin.
· Lesions with well defined smooth margins and homogenous internal enhancement pattern has a high predictive value for benignity
·87% of malignant lesions showed heterogeneous enhancement in our study only 5% of the...
Personal information
Dr Prachi Kala,
MD.
SectionalImagingDivision,
Department of radiology,
Vydehi institute of medical sciences,
Bangalore,India.
[email protected]
Dr A.
M.Maryam,
Resident,Department of radiology,
Vydehi institute of medical sciences,
Bangalore,India.
Dr Rohini Avantsa,
MD.
SectionalImagingDivision,Department of radiology,
Vydehi institute of medical sciences,
Bangalore,
India.
[email protected]
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