Diffusion-weighted imaging with simultaneous multi-slice echo-planar technique for the diagnosis of breast magnetic resonance imaging
| Autor: | Akiko Shimauchi, Machiko Nagatsuka, Eisuke Fukuma, Kyoko Nomura, Youichi Machida, Yoshiaki Kato |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Breast Neoplasms Breast magnetic resonance imaging 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Medicine Effective diffusion coefficient Humans Radiology Nuclear Medicine and imaging cardiovascular diseases Breast Prospective Studies medicine.diagnostic_test Receiver operating characteristic business.industry Echo-Planar Imaging Area under the curve Magnetic resonance imaging Middle Aged Confidence interval Diffusion Magnetic Resonance Imaging ROC Curve 030220 oncology & carcinogenesis Area Under Curve Mann–Whitney U test Female business Nuclear medicine Diffusion MRI Follow-Up Studies |
| Zdroj: | Japanese journal of radiology. 38(4) |
| ISSN: | 1867-108X |
| Popis: | To evaluate the diagnostic potential of simultaneous multi-slice echo-planar diffusion-weighted imaging (DWI) (SMS-DWI). A total of 55 consecutive patients underwent breast magnetic resonance imaging (MRI) between April and September 2018. SMS-DWI and single-shot echo-planar DWI (SS-EPI-DWI) sequences were obtained with the following parameters: b value, 0, 850, and 1200 mm2/s for both; spacing between sections, 2 mm for SMS-DWI and 3 mm for SS-EPI-DWI. Lesion visibility was assessed by two radiologists, and minimal and maximal apparent diffusion coefficients (ADCs) for masses were measured. The Mann–Whitney U test and receiver operating characteristic (ROC) curve analysis were performed. Of the 55 cases, 23 (41.8%) were malignant and 32 (58.2%) were benign. Visual conspicuity was superior on SMS-DWI in 47.1% (n = 16/34) or 55.9% (n = 19/34) among the lesions visible on DWI and ADC. ROC curve analyses revealed an area under the curve of 0.87 [95% confidence interval (CI) 0.68–1.00], 0.94 (95% CI 0.86–1.00), 0.93 (95% CI 0.84–1.00) and 0.90 (95% CI 0.77–1.00) for minimal and maximal ADC on SMS-DWI and ADC on SS-EPI-DWI, respectively. Simultaneous multi-slice technique provided breast DWI of better visual conspicuity and comparable diagnostic performance with shorter acquisition time. |
| Databáze: | OpenAIRE |
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