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Comparative Study
. 2008 Jan;26(1):15-20.
doi: 10.1007/s11604-007-0187-6. Epub 2008 Jan 31.

Comparison of 3.0-and 1.5-tesla diffusion-weighted imaging in the visibility of breast cancer

Aoi Matsuoka  1 , Masako Minato, Masafumi Harada, Hitoshi Kubo, Yoshikatsu Bandou, Akira Tangoku, Kiichirou Nakano, Hiromu Nishitani
Affiliations
Comparative Study

Comparison of 3.0-and 1.5-tesla diffusion-weighted imaging in the visibility of breast cancer

Aoi Matsuoka et al. Radiat Med. 2008 Jan.

Abstract

Purpose: The aim of this study was to compare diffusion-weighted imaging (DWI) at 3.0 T and 1.5 T by evaluating the apparent diffusion coefficient (ADC) value and visibility of breast cancer in the same patients.

Materials and methods: A total of 13 patients (16 lesions) with breast cancer underwent DWI at 3.0 T and 1.5 T. Tumors were classified into two groups based on the lesion size. The ADC values were measured, and visibility of the tumors was scored blindly.

Results: No significant difference was found for ADC values between 3.0 T and 1.5 T in either group (P > 0.05). All of the large lesions were visible clearly at both magnetic field strengths, and image scores were not different (P > 0.05). In contrast, small lesions were more clearly visible and had better image scores at 3.0 T than at 1.5 T (P < 0.001).

Conclusion: Small cancers were more clearly visible on DWI at 3.0 T than 1.5 T.

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