Diffusion-weighted breast magnetic resonance imaging with distortion correction using non-rigid image registration: a clinical study

Yasuo Takatsu, Hajime Sagawa, Masafumi Nakamura, Yuichi Suzuki, Tosiaki Miyati

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Our distortion correction method for diffusion-weighted breast images was applied to clinical studies to evaluate its practicality. We used b values of 0 and 1500 s/mm2 and dynamic images captured after injecting the contrast medium for magnetic resonance imaging (MRI). This method is based on non-rigid image registration, and dispenses with multiple scans, reducing examination time and patient burden. Image correction included the following: matrix size matching; segmentation; edge detection; non-rigid image registration between T2-weighted images with fat suppression and b0 images; and image warping of b1500 images. Significant differences were noted for all combinations of cross-correlation coefficients of whole-breast images between with and without correction, and no significant differences for apparent diffusion coefficients. The percentage differences were not significant for cross-correlation coefficients, with and without correction, calculated for various sizes, positions, and types of lesions of high-intensity regions. In conclusion, our distortion correction method is effective for clinical breast MRI.

Original languageEnglish
Pages (from-to)210-218
Number of pages9
JournalRadiological Physics and Technology
Volume13
Issue number2
DOIs
Publication statusPublished - 01-06-2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Radiation
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Radiology Nuclear Medicine and imaging

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