Dataset Information

Accelerated 3D T₂ w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.

ABSTRACT:

Purpose

To achieve 3D T₂ w imaging of the prostate with 1-mm isotropic resolution in less than 3 min.

Methods

We devised and implemented a 3D T₂ -prepared multishot balanced steady state free precession (T₂ prep-bSSFP) acquisition sequence with a variable density undersampled trajectory combined with a total variation regularized iterative SENSE (TV-SENSE) reconstruction. Prospectively undersampled images of the prostate (acceleration factor R = 3) were acquired in 11 healthy subjects in an institutional review board-approved study. Image quality metrics (subjective signal-to-noise ratio, contrast, sharpness, and overall prostate image quality) were evaluated by 2 radiologists. Scores of the proposed accelerated sequence were compared using the Wilcoxon signed-rank and Kruskal-Wallis non-parametric tests to prostate images acquired using a fully sampled 3D T₂ prep-bSSFP acquisition, and with clinical standard 2D and 3D turbo spin echo (TSE) T₂ w acquisitions. A P-value < 0.05 was considered significant.

Results

The 3× accelerated 3D T₂ prep-bSSFP images required a scan time (min:s) of 2:45, while the fully sampled 3D T₂ prep-bSSFP and clinical standard 3D TSE images were acquired in 8:23 and 7:29, respectively. Image quality scores (contrast, sharpness, and overall prostate image quality) of the accelerated 3D T₂ prep-bSSFP, fully sampled T₂ prep-bSSFP, and clinical standard 3D TSE acquisitions along all 3 spatial dimensions were not significantly different (P > 0.05).

Conclusion

3D T₂ w images of the prostate with 1-mm isotropic resolution can be acquired in less than 3 min, with image quality that is comparable to a clinical standard 3D TSE sequence but only takes a third of the acquisition time.

SUBMITTER: Vidya Shankar R

PROVIDER: S-EPMC6563534 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Accelerated 3D T<sub>2</sub> w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.

Vidya Shankar Rohini R Roccia Elisa E Cruz Gastao G Neji Radhouene R Botnar René R Prezzi Davide D Goh Vicky V Prieto Claudia C Dregely Isabel I

Magnetic resonance in medicine 20190421 2

<h4>Purpose</h4>To achieve 3D T<sub>2</sub> w imaging of the prostate with 1-mm isotropic resolution in less than 3 min.<h4>Methods</h4>We devised and implemented a 3D T<sub>2</sub> -prepared multishot balanced steady state free precession (T<sub>2</sub> prep-bSSFP) acquisition sequence with a variable density undersampled trajectory combined with a total variation regularized iterative SENSE (TV-SENSE) reconstruction. Prospectively undersampled images of the prostate (acceleration factor R = 3) ...[more]

PMID: 31006906

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Dataset Information

Accelerated 3D T₂ w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.

Purpose

Methods

Results

Conclusion

Publications

Accelerated 3D T<sub>2</sub> w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Dataset Information

Accelerated 3D T2 w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.

Purpose

Methods

Results

Conclusion

Publications

Accelerated 3D T<sub>2</sub> w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Accelerated 3D T₂ w-imaging of the prostate with 1-millimeter isotropic resolution in less than 3 minutes.