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  4. NovelT2Mapping for Evaluating Cervical Cancer Features by Providing QuantitativeT2Maps and Synthetic Morphologic Images: A Preliminary Study
 
research article

NovelT2Mapping for Evaluating Cervical Cancer Features by Providing QuantitativeT2Maps and Synthetic Morphologic Images: A Preliminary Study

Li, Shujian
•
Liu, Jie
•
Zhang, Feifei
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August 14, 2020
Journal Of Magnetic Resonance Imaging

Background The application value of T(2)mapping in evaluating cervical cancer (CC) features remains unclear. Purpose To investigate the role of T(2)values in evaluating CC classification, grade, and lymphovascular space invasion (LVSI) in comparison to apparent diffusion coefficient (ADC), and to compare synthetic T-2-weighted (T2W) images calculated from T(2)values to conventional T2W images for CC staging. Study Type Retrospective. Population Sixty-three patients with histopathologically confirmed CC. Field Strength/Sequence 3T, conventional T2W turbo spin-echo, diffusion-weighted echo-planar, and accelerated T(2)mapping sequence. Assessment T(2)and ADC values between different pathological features of CC were compared. The diagnostic accuracies of conventional and synthetic T2W images in staging were also compared. Statistical Tests Parameters were compared using an independentt-test, Wilcoxon signed-rank test, and the chi-square test. Receiver operating characteristic analysis was performed. Results The T(2)values varied significantly between well/moderately differentiated and poorly differentiated tumors ([92.8 +/- 9.5 msec] vs. [83.8 +/- 9.5 msec],P < 0.05) and between LVSI-positive and LVSI-negative CC ([82.2 +/- 8.2 msec] vs. [93.9 +/- 9.1 msec],P < 0.05). The ADC values showed a significant difference for grade ([0.76 +/- 0.10 x 10(-3)mm(2)/s] vs. [0.65 +/- 0.11 x 10(-3)mm(2)/s],P < 0.05) and no difference for LVSI status ([0.71 +/- 0.11x 10(-3)mm(2)/s] vs. [0.73 +/- 0.12x 10(-3)mm(2)/s],P= 0.472). There was no significant difference in T(2)and ADC values between squamous cell carcinoma and adenocarcinoma (P= 0.378 andP= 0.661, respectively). In MRI staging, the conventional and synthetic T2W images resulted in a similar accuracy (71% vs. 68%,P= 0.698). Data Conclusion The accelerated T(2)mapping sequence may facilitate grading and staging of CC by providing quantitative T(2)maps and synthetic T2W images in one acquisition. T(2)values may be superior to ADC in predicting LVSI. Level of Evidence 2 Technical Efficacy Stage 2

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Type
research article
DOI
10.1002/jmri.27297
Web of Science ID

WOS:000559460100001

Author(s)
Li, Shujian
Liu, Jie
Zhang, Feifei
Yang, Meng
Zhang, Zanxia
Liu, Jingjing
Zhang, Yong
Hilbert, Tom  
Kober, Tobias  
Cheng, Jingliang
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Date Issued

2020-08-14

Publisher

WILEY

Published in
Journal Of Magnetic Resonance Imaging
Volume

52

Issue

6

Start page

1859

End page

1869

Subjects

Radiology, Nuclear Medicine & Medical Imaging

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magnetic resonance imaging

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cervical cancer

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t2 mapping

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apparent diffusion coefficient

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lymphovascular space invasion

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pathological grade

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apparent diffusion-coefficient

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fast spin-echo

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mri

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reconstruction

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tumors

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grade

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LTS5  
Available on Infoscience
August 27, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/171166
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