Image quality assessment of single-shot turbo spin echo diffusion-weighted imaging with parallel imaging technique: a phantom study

Yoshida, Tsukasa; Urikura, Atsushi; Shirata, Kensei; Nakaya, Yoshihiro; Terashima, Shingo; Hosokawa, Yoichiro

doi:10.1259/bjr.20160512

Cited by 23 publications

(30 citation statements)

References 29 publications

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“…Furthermore, reduced image blurring in the phase-encoding direction was observed as AF increased in both CS and SENSE, although the increase in AF led to an increase in image noise. This is consistent with the results of a recent study [11] and could be explained by the fact that the higher AF reduces the shot duration, which causes image blurring owing to T 2 decay in the phase-encoding direction. Considering the above-mentioned findings, TSE-DWI using CS maintains geometric accuracy, provides less variation in ADC values, and reduces scanning time in comparison with TSE-DWI using SENSE.…”

Section: Discussionsupporting

confidence: 93%

“…Our study also demonstrated the variability of ADC values and geometric accuracy measurements obtained from TSE-DWI using SENSE and CS. The reproducibility of the ADC values obtained with TSE-DWI was similar to that reported in a recent study, regardless of whether SENSE or CS were used [11]. In addition, the CV values of geometric accuracy measurements were good with both CS and SENSE.…”

Section: Discussionsupporting

confidence: 85%

“…A study by Yoshida et al evaluated the relationship between the image quality of TSE-DWI and various sensitivity encoding (SENSE) acceleration factors (AFs) [11], and recent advances in combining compressed sensing and SENSE-based parallel imaging (PI) techniques, so called compressed SENSE (CS), can reduce scan times further than conventional PI techniques, while maintaining image quality [12,13]. However, there is currently no report directly comparing CS and conventional SENSE TSE-DWI sequences.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Magnetic Resonance Signals from Diffusion Weighted Imaging using Compressed Sensitivity Encoding Technique

Jang¹,

Han²,

Jeong³

2019

JMAG

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The purpose of this study was to compare image quality between compressed sensitivity encoding (CS) and sensitivity encoding (SENSE) in single-shot turbo spin echo diffusion-weighted imaging (TSE-DWI). Signal-tonoise ratios (SNR), apparent diffusion coefficient (ADC) values, and geometric accuracies were measured with an American College of Radiology head phantom. CS showed a high mean SNR, less variation in ADC values, and reduced imaging acquisition time (21.7 %-39.3 %) compared with SENSE. In addition, there was no significant difference in geometric accuracy between SENSE and CS. In conclusion, in comparison with SENSE TSE-DWI, CS TSE-DWI resulted in a reduced imaging acquisition time and improved SNR, while maintaining image quality.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

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Analysis of Magnetic Resonance Signals from Diffusion Weighted Imaging using Compressed Sensitivity Encoding Technique

Jang¹,

Han²,

Jeong³

2019

JMAG

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“…Previous study reported that the SNR of TSE-DWI was lower than that of EPI-DWI owing to multiple RF refocusing pulses; 21 however, the image quality of TSE-DWI has been recently improved by using the modulus averaging method, short RF pulses, and SENSE. 22,32 Our results are attributable to the high SNR achieved by these factors. To calculate the SNR, ROIs were placed in the areas with homogeneous subcutaneous fat in both TSE-DWI and EPI-DWI (b = 850 s/mm 2 ).…”

Section: Discussionmentioning

confidence: 70%

Turbo Spin-echo Diffusion-weighted Imaging Compared with Single-shot Echo-planar Diffusion-weighted Imaging: Image Quality and Diagnostic Performance When Differentiating between Ductal Carcinoma in situ and Invasive Ductal Carcinoma

Mori

Mugikura

Miyashita

et al. 2021

MRMS

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To compare the image quality between turbo spin-echo (TSE)-diffusion weighted imaging (DWI) and single-shot echo-planar imaging (EPI)-DWI, and to verify the diagnostic performance of the apparent diffusion coefficient (ADC) parameters of the two techniques by using histogram analysis in terms of differentiation between ductal carcinoma in situ (DCIS) and invasive ductal carcinoma (IDC) lesions. Methods: Ninety-four women with 94 lesions diagnosed as breast cancer by surgery underwent IRBapproved preoperative magnetic resonance imaging, including TSE and EPI-DWI with b-values of 50 and 850 s/mm 2. Twenty lesions were identified as DCIS and 74 as IDC. Image quality [signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and geometric distortion] was evaluated quantitatively and compared between the TSE and EPI-DWI. A histogram analysis of the entire tumor voxel-based ADC data was performed, and the 10th, 25th, 50th, 75th, and 90th percentile values of each technique were compared between DCIS and IDC lesions. Results: The SNR and CNR of TSE-DWI were significantly higher than those of EPI-DWI (P < 0.0001 and < 0.0001). The geometric distortion of TSE-DWI was significantly lower than that of EPI-DWI (P < 0.0001). In TSE-DWI, the 10th, 25th, 50th, and 75th percentile values were significantly different between the DCIS and IDC lesions (P = 0.0010, 0.0004, 0.0008, and 0.0044, respectively). In EPI-DWI, the 50th and 75th percentile values were significantly different between the two groups (P = 0.0009 and 0.0093). There was no significant difference in the area under the curve of the receiver operating characteristic analysis of the 10th, 25th, 50th, and 75th percentile values of TSE-DWI, and the 50th and 75th percentile values of EPI-DWI (P = 0.29). Conclusion: The image quality of TSE-DWI was better than that of EPI-DWI. DCIS lesions were distinguished from IDC lesions with a wider range of percentile values in TSE-DWI than in EPI-DWI, although diagnostic performance was not significantly different between the techniques.

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“…4 Recently, parallel imaging technique and higher signal-to-noise ratio (SNR) at 3T improved these issues with single-shot TSE-DWI. 1,4 The utility of TSE-DWI has been reported in evaluations of middle ear cholesteatoma, orbital and neck lesions, TECHNICAL NOTE study was assessment of the image quality and artifacts with 4-point scales. The secondary endpoint was comparison of ADC, as described in detail below.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Thin-slice Coronal Single-shot Turbo Spin-echo Diffusion-weighted Imaging of the Hand: A Comparison with Conventional Echo-planar Diffusion-weighted Imaging

Ogawa

Nakagawa

Arai

et al. 2020

MRMS

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We prospectively evaluated thin-slice coronal turbo spin-echo (TSE) diffusion-weighted imaging (DWI) covering a larger area with the recently-developed techniques on a 3T MRI scanner, compared with echoplanar imaging (EPI)-DWI in patients undergoing routine hand MRI. Visual score assessment and apparent diffusion coefficient (ADC) measurement were performed for patients with suspected hand tumors. TSE-DWI was superior to EPI-DWI, with less image distortion. The visual score and ADC comparison assessments proved that the image noise of TSE-DWI was acceptable.breast and lung cancers, and spinal cord infarction. 1,5-10 To the best of our knowledge, however, there have been no TSE-DWI studies evaluating musculoskeletal lesions of the hand or foot. In addition, only one previous case report evaluated middle ear cholesteatoma using 2-mm-thick single-shot TSE-DWI, but ADC measurement was not performed and the acquisition time was not presented. 6 TSE-DWI using the recently-developed parallel imaging and single-shot technique on 3T MRI might yield a superior image quality and is already used clinically. However, the image quality of thin-slice TSE-DWI for the assessment of small musculoskeletal lesions has not yet been clarified. Thus, the purpose of this study was to prospectively examine whether the 2-mm-thick coronal TSE-DWI covering a larger area and small lesions could substitute for conventional EPI-DWI in patients undergoing routine hand MRI on a 3T scanner. Materials and Methods Study designThis prospective study was performed in accordance with the ethical standards of our Institutional Review Board. Written informed consent was obtained from the patients and their privacy was completely protected. Eligibility criteria for entry were: (1) adult patients suspected of having or being followed for a musculoskeletal tumor of the hand or finger, (2) patient agreement to cooperate, and (3) examination on a Philips 3T MRI scanner (Ingenia; Philips Medical Systems, Eindhoven, The Netherlands). The exclusion criteria were:(1) contraindications to MR (incompatible metal implants or pacemakers), and (2) motion artifacts and artifacts from unsuppressed fat on the images. The primary endpoint of the

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Image quality assessment of single-shot turbo spin echo diffusion-weighted imaging with parallel imaging technique: a phantom study

Cited by 23 publications

References 29 publications

Analysis of Magnetic Resonance Signals from Diffusion Weighted Imaging using Compressed Sensitivity Encoding Technique

Analysis of Magnetic Resonance Signals from Diffusion Weighted Imaging using Compressed Sensitivity Encoding Technique

Turbo Spin-echo Diffusion-weighted Imaging Compared with Single-shot Echo-planar Diffusion-weighted Imaging: Image Quality and Diagnostic Performance When Differentiating between Ductal Carcinoma <i>in situ</i> and Invasive Ductal Carcinoma

Evaluation of Thin-slice Coronal Single-shot Turbo Spin-echo Diffusion-weighted Imaging of the Hand: A Comparison with Conventional Echo-planar Diffusion-weighted Imaging

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