Tags

Type your tag names separated by a space and hit enter

Magnetic resonance imaging as a single diagnostic tool for verifying radiosurgery outcomes of cavernous sinus dural arteriovenous fistula.
Eur J Radiol. 2020 Apr; 125:108866.EJ

Abstract

PURPOSE

MRI and MR angiography (MRA) are noninvasive methods for examining cavernous sinus dural arteriovenous fistulas (CSDAVFs) after radiosurgery. In this study, we investigated the accuracy of unenhanced MRI/3-dimensional time-of-flight (3D TOF) MRA in evaluating CSDAVF obliteration as compared with digital subtraction angiography (DSA).

METHODS

From 1995-2012, 48 cases of CSDAVFs received Gamma Knife surgery (GKS) and had undergone both unenhanced MRI/3D TOF MRA and DSA for posttreatment evaluation. Two blinded observers independently interpreted the results of MRI/MRA. The results of MRI/MRA were compared with those of DSA. The sensitivity (the probability of MRI/MRA showing obliteration when DSA showed complete obliteration), specificity, positive predictive value, and negative predictive value for CSDAVF obliteration were reported.

RESULTS

The median interval between the final MRI/MRA and the subsequent DSA was 2 months. Follow-up DSA revealed that 38 of 48 (79.2 %) CSDAVFs were completely obliterated. The results of interobserver agreement assessment showed almost perfect agreement between the 2 observers. For unenhanced MRI/3D TOF MRA, the observed sensitivity was 84.2 %, specificity was 100 %, positive predictive value was 100 %, and negative predictive value was 62.5 %.

CONCLUSIONS

Unenhanced MRI/3D TOF MRA alone may be adequate to document the complete obliteration of CSDAVFs after GKS. Time-resolved MRA or DSA can be reserved for a suspected residual CSDAVF after a sufficient latency period after GKS.

Authors+Show Affiliations

Department of Radiology, Taipei Veterans General Hospital Taoyuan Branch, Taoyuan, Taiwan; Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan.Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan.Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan.Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan. Electronic address: hmwu@vghtpe.gov.tw.Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan.Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang Ming University, Taipei, Taiwan.School of Medicine, National Yang Ming University, Taipei, Taiwan; Neurological Institute, Department of Neurosurgery, Taipei Veterans General Hospital, Taipei, Taiwan.School of Medicine, National Yang Ming University, Taipei, Taiwan; Neurological Institute, Department of Neurosurgery, Taipei Veterans General Hospital, Taipei, Taiwan.School of Medicine, National Yang Ming University, Taipei, Taiwan; Neurological Institute, Department of Neurosurgery, Taipei Veterans General Hospital, Taipei, Taiwan.School of Medicine, National Yang Ming University, Taipei, Taiwan; Neurological Institute, Department of Neurosurgery, Taipei Veterans General Hospital, Taipei, Taiwan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32065928

Citation

Hu, Yong-Sin, et al. "Magnetic Resonance Imaging as a Single Diagnostic Tool for Verifying Radiosurgery Outcomes of Cavernous Sinus Dural Arteriovenous Fistula." European Journal of Radiology, vol. 125, 2020, p. 108866.
Hu YS, Guo WY, Lin CJ, et al. Magnetic resonance imaging as a single diagnostic tool for verifying radiosurgery outcomes of cavernous sinus dural arteriovenous fistula. Eur J Radiol. 2020;125:108866.
Hu, Y. S., Guo, W. Y., Lin, C. J., Wu, H. M., Luo, C. B., Wu, C. A., Lee, C. C., Yang, H. C., Liu, K. D., & Chung, W. Y. (2020). Magnetic resonance imaging as a single diagnostic tool for verifying radiosurgery outcomes of cavernous sinus dural arteriovenous fistula. European Journal of Radiology, 125, 108866. https://doi.org/10.1016/j.ejrad.2020.108866
Hu YS, et al. Magnetic Resonance Imaging as a Single Diagnostic Tool for Verifying Radiosurgery Outcomes of Cavernous Sinus Dural Arteriovenous Fistula. Eur J Radiol. 2020;125:108866. PubMed PMID: 32065928.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Magnetic resonance imaging as a single diagnostic tool for verifying radiosurgery outcomes of cavernous sinus dural arteriovenous fistula. AU - Hu,Yong-Sin, AU - Guo,Wan-Yuo, AU - Lin,Chung-Jung, AU - Wu,Hsiu-Mei, AU - Luo,Chao-Bao, AU - Wu,Chia-An, AU - Lee,Cheng-Chia, AU - Yang,Huai-Che, AU - Liu,Kang-Du, AU - Chung,Wen-Yuh, Y1 - 2020/02/06/ PY - 2019/10/27/received PY - 2020/01/24/revised PY - 2020/02/02/accepted PY - 2020/2/18/pubmed PY - 2020/11/4/medline PY - 2020/2/18/entrez KW - Cavernous sinus KW - Digital subtraction angiography KW - Dural arteriovenous fistula KW - Gamma knife KW - Magnetic resonance angiography KW - Stereotactic radiosurgery SP - 108866 EP - 108866 JF - European journal of radiology JO - Eur J Radiol VL - 125 N2 - PURPOSE: MRI and MR angiography (MRA) are noninvasive methods for examining cavernous sinus dural arteriovenous fistulas (CSDAVFs) after radiosurgery. In this study, we investigated the accuracy of unenhanced MRI/3-dimensional time-of-flight (3D TOF) MRA in evaluating CSDAVF obliteration as compared with digital subtraction angiography (DSA). METHODS: From 1995-2012, 48 cases of CSDAVFs received Gamma Knife surgery (GKS) and had undergone both unenhanced MRI/3D TOF MRA and DSA for posttreatment evaluation. Two blinded observers independently interpreted the results of MRI/MRA. The results of MRI/MRA were compared with those of DSA. The sensitivity (the probability of MRI/MRA showing obliteration when DSA showed complete obliteration), specificity, positive predictive value, and negative predictive value for CSDAVF obliteration were reported. RESULTS: The median interval between the final MRI/MRA and the subsequent DSA was 2 months. Follow-up DSA revealed that 38 of 48 (79.2 %) CSDAVFs were completely obliterated. The results of interobserver agreement assessment showed almost perfect agreement between the 2 observers. For unenhanced MRI/3D TOF MRA, the observed sensitivity was 84.2 %, specificity was 100 %, positive predictive value was 100 %, and negative predictive value was 62.5 %. CONCLUSIONS: Unenhanced MRI/3D TOF MRA alone may be adequate to document the complete obliteration of CSDAVFs after GKS. Time-resolved MRA or DSA can be reserved for a suspected residual CSDAVF after a sufficient latency period after GKS. SN - 1872-7727 UR - https://www.unboundmedicine.com/medline/citation/32065928/Magnetic_resonance_imaging_as_a_single_diagnostic_tool_for_verifying_radiosurgery_outcomes_of_cavernous_sinus_dural_arteriovenous_fistula_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0720-048X(20)30055-3 DB - PRIME DP - Unbound Medicine ER -