Abstract
Objectives
To analyze the value of amide proton transfer-weighted imaging (APTWI) and diffusion kurtosis imaging (DKI) in differentiating cervical cancer (CC) pathological type, grade, and stage.
Methods
One hundred and twelve women underwent pelvic APTWI and DKI. The magnetization transfer ratio asymmetry (MTRasym, 3.5 ppm), apparent kurtosis coefficient (Kapp), and non-Gaussian diffusion coefficient (Dapp) were calculated by histological subtype, grade, and stage. The differences, efficacy, and correlation between parameters were determined.
Results
The MTRasym(3.5 ppm) and Dapp values of the adenocarcinoma (CA) group were higher than those of the cervical squamous carcinoma (CSC) group, while the Kapp values were lower than those of the CSC group. The MTRasym(3.5 ppm) and Kapp values of the high-grade group were higher than those of the low-grade group, while the Dapp values were lower than those of the low-grade group. The Dapp values of the advanced-stage group were lower than those of the early-stage group, while the Kapp values were greater than those of the early-stage group. The Kapp showed the highest efficacy in differentiating CSC and CA, high- and low-grade CC, and advanced- and early-stage CC. In the CSC and CA groups, both the Kapp and Dapp were highly correlated with pathological grade, and the MTRasym(3.5 ppm) was weakly correlated with pathological grade. The Kapp, Dapp, and MTRasym(3.5 ppm) were all weakly correlated with pathological stage.
Conclusion
Both DKI and APTWI can be used in preliminary evaluations of CC, but DKI has advantages in the identification of pathological type, grade, and stage.
Key Points
• PTWI and DKI provide new information regarding cervical cancer.
• MTRasym(3.5 ppm), D app , and K app are valid parameters to characterize tissue microstructure.
• DKI is superior to APTWI in the study of cervical cancer.
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Abbreviations
- APTWI:
-
Amide proton transfer-weighted imaging
- AUC:
-
Area under the curve
- CA:
-
Cervical adenocarcinoma
- CC:
-
Cervical cancer
- CSC:
-
Cervical squamous carcinoma
- D app :
-
Mean diffusivity
- DKI:
-
Diffusion kurtosis imaging
- FIGO:
-
International Federation of Gynecology and Obstetrics
- ICC:
-
Intraclass correlation coefficient
- K app :
-
Mean kurtosis
- MRI:
-
Magnetic resonance imaging
- MTRasym(3.5 ppm):
-
The asymmetric magnetization transfer ratio at 3.5 ppm
- RF:
-
Radio frequency
- ROC:
-
Receiver operating characteristic
- ROI:
-
Region of interest
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Acknowledgments
We acknowledge the support received from the National Natural Science Foundation of China and Henan Medical Science and Technology Research Program. In addition, Nan Meng wants to thank, in particular, the patience, care, and support from **g Sun over the past years. I love you forever.
Funding
This study has received funding by the National Natural Science Foundation of China (grants 81271565 and 31470047), and the National Clinical Key Specialty of China and the Henan Medical Science and Technology Research Program (grants 2018020357 and 2018020367).
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The scientific guarantor of this publication is Meiyun Wang.
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One of the authors of this manuscript (Kaiyu Wang) is an employee of GE Healthcare. The remaining authors declare no relationships with any companies whose products or services may be related to the subject matter of the article.
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Meng, N., Wang, X., Sun, J. et al. Application of the amide proton transfer-weighted imaging and diffusion kurtosis imaging in the study of cervical cancer. Eur Radiol 30, 5758–5767 (2020). https://doi.org/10.1007/s00330-020-06884-9
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DOI: https://doi.org/10.1007/s00330-020-06884-9