Comparative study of multiplexed sensitivity-encoding diffusion weighted imaging and single-shot echo-planar diffusion weighted imaging in prostate cancer images

doi:10.3877/cma.j.issn.1674-3253.2023.06.002

Abstract

Abstract:

Objective

To investigate the quantitative evaluation and subjective analysis of multiplexed sensitivity-encoding diffusion weighted imaging (MUSE-DWI) versus single-shot echo-planar diffusion weighted imaging (SS-DWI) in prostate cancer (PCa).

Methods

MUSE-DWI and SS-DWI images of 146 pathologically confirmed PCa patients in the Third Affiliated Hospital of Sun Yat-sen University was performed to quantify the signal to noise ratio (SNR), contrast signal to noise ratio (CNR), apparent diffusion coefficient (ADC) and subjective evaluation of the two sequences were quantitatively analyzed retrospectively.

Results

The SNR and CNR of MUSE-DWI were significantly higher than those of SS-DWI (38±13) vs (18±7), (43±24) vs (18±7), the differences were statistically significant (P<0.001); the ADC values of MUSE-DWI and SS-DWI were (0.75 ±0.14) vs (0.74±0.13), respectively, P=0.020. The subjective scores were in high agreement between the two physicians, with kappa values of 0.764 (MUSE-DWI) and 0.691 (SS-DWI), respectively. Total MUSE-DWI image scores (229.0±5.7) were higher than SS-DWI (127.0±5.2); MUSE-DWI image scores were higher than SS-DWI [(3.7±3.4) vs (2.1±1.0), P<0.05].

Conclusions

Compared with SS-DWI, MUSE-DWI has clearer images, higher SNR and CNR for detecting PCa, and higher subjective physician scores, which are valuable to assist clinical diagnosis and treatment of PCa.

Key words: Multiplexed sensitivity-encoding, Single-shot echo-planar imaging, Diffusion weighted imaging, Prostate cancer

Quanxi Li, Huijun Tang, Jiansheng Zhang, Fei Yang. Comparative study of multiplexed sensitivity-encoding diffusion weighted imaging and single-shot echo-planar diffusion weighted imaging in prostate cancer images[J]. Chinese Journal of Endourology(Electronic Edition), 2023, 17(06): 553-557.

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URL: https://zhqjmnmwkzz.cma-cmc.com.cn/EN/10.3877/cma.j.issn.1674-3253.2023.06.002

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名称	SS-DWI (平均)	SS-DWI (总分)	MUSE-DWI (平均)	MUSE-DWI (总分)	P值
医师A	2.1±1.1	128.0±7.6	3.5±1.8	215.0±8.3	0.037
医师B	2.3±1.0	124.0±6.2	3.9±2.2	251.0±6.1	0.024
平均	2.1±1.0	127.0±5.2	3.7±3.4	229.0±5.7	0.041
Kappa值	0.691		0.764

名称	SS-DWI (平均)	SS-DWI (总分)	MUSE-DWI (平均)	MUSE-DWI (总分)	P值
医师A	2.1±1.1	128.0±7.6	3.5±1.8	215.0±8.3	0.037
医师B	2.3±1.0	124.0±6.2	3.9±2.2	251.0±6.1	0.024
平均	2.1±1.0	127.0±5.2	3.7±3.4	229.0±5.7	0.041
Kappa值	0.691		0.764

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