WE-D-332-08: Experimental Demonstration of Simultaneous High Spatial and High Temporal Resolution Using Prior Image Constrained Compressed Sensing (PICCS) for Gated CT Reconstruction

2008 ◽  
Vol 35 (6Part24) ◽  
pp. 2949-2950
Author(s):  
Z Qi ◽  
S Leng ◽  
J Zambelli ◽  
B Nett ◽  
J Tang ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Temporal Resolution ◽  
High Temporal Resolution ◽  
Ct Reconstruction ◽  
Experimental Demonstration

Compressed sensing cine imaging with high spatial or high temporal resolution for analysis of left ventricular function

2016 ◽  
Vol 44 (2) ◽  
pp. 366-374 ◽  
Author(s):  
Juliane Goebel ◽  
Felix Nensa ◽  
Haemi P. Schemuth ◽  
Stefan Maderwald ◽  
Marcel Gratz ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Temporal Resolution ◽  
Left Ventricular ◽  
Cine Imaging ◽  
High Temporal Resolution

scholarly journals Optimization of scan protocol for high temporal resolution magnetic resonance imaging of the liver under single breath-holding using compressed sensing and parallel imaging techniques in a 1.5-T magnetic resonance system

BJR|Open ◽  
2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Fumiaki Fukamatsu ◽  
Akira Yamada ◽  
Hayato Hayashihara ◽  
Yoshihiro Kitou ◽  
Yasunari Fujinaga
Keyword(s):  
Magnetic Resonance ◽  
Mr Imaging ◽  
Compressed Sensing ◽  
Temporal Resolution ◽  
Parallel Imaging ◽  
Mean Value ◽  
Breath Holding ◽  
High Temporal Resolution ◽  
Single Breath ◽  
Scan Protocol

Objective: To optimize the scan protocol for high temporal resolution magnetic resonance (MR) imaging of the liver under single breath-holding, using compressed sensing (CS) and parallel imaging (PI) techniques in a 1.5 T MR system. Methods: 31 healthy volunteers who underwent fat-suppressed gradient-echo T1 weighted imaging using a 1.5 T MR system were included. Image quality was evaluated on altering various imaging parameters in CS and PI so that the scan time was adjusted to 10 and 6 s within a single breath-holding. Normalized standard deviation (nSD = SD/mean value) and signal-to-noise ratio (SNR = mean value/SD) of liver signal intensity were measured. Visual scores for the outline of the liver and inferior right hepatic vein (IRHV) were evaluated using a 4-point scale and compared with that of the reference standard (20 s scan without CS). Results: The nSD and SNR were not significantly different when the 10 s scan with CS factor 2.0 and the 6 s scan with CS factor 2.0 and 2.5 were compared to the 20 s scan. Overall visual score (mean score of the outline of the liver and IRHV) was significantly better (p < 0.05) with the 10 s scan with CS factor 2.0 compared to the other scan protocols. Conclusion: The 10 s scan with CS factor 2.0 should be recommended for high temporal resolution MR imaging of the liver using CS and PI in a 1.5 T MR system. Advances in knowledge: This study conducts a novel MR imaging of the liver using CS and PI in a 1.5 T MR system.

scholarly journals Feasibility of high temporal resolution breast DCE-MRI using compressed sensing theory

2010 ◽  
Vol 37 (9) ◽  
pp. 4971-4981 ◽  
Author(s):  
Haoyu Wang ◽  
Yanwei Miao ◽  
Kun Zhou ◽  
Yanming Yu ◽  
Shanglian Bao ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Temporal Resolution ◽  
High Temporal Resolution ◽  
Dce Mri

Multidetector-row Computed Tomography in the Assessment of Coronary Artery Disease – New Techniques and Insights

2010 ◽  
Vol 6 (2) ◽  
pp. 43 ◽  
Author(s):  
Andreas H Mahnken ◽  
Keyword(s):  
Computed Tomography ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Data Acquisition ◽  
Temporal Resolution ◽  
High Temporal Resolution ◽  
Multidetector Row ◽  
Ct Scanners ◽  
Artery Disease ◽  
Cardiac Mdct

Over the last decade, cardiac computed tomography (CT) technology has experienced revolutionary changes and gained broad clinical acceptance in the work-up of patients suffering from coronary artery disease (CAD). Since cardiac multidetector-row CT (MDCT) was introduced in 1998, acquisition time, number of detector rows and spatial and temporal resolution have improved tremendously. Current developments in cardiac CT are focusing on low-dose cardiac scanning at ultra-high temporal resolution. Technically, there are two major approaches to achieving these goals: rapid data acquisition using dual-source CT scanners with high temporal resolution or volumetric data acquisition with 256/320-slice CT scanners. While each approach has specific advantages and disadvantages, both technologies foster the extension of cardiac MDCT beyond morphological imaging towards the functional assessment of CAD. This article examines current trends in the development of cardiac MDCT.

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