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Evaluation of dural arteriovenous fistulas with 4D contrast-enhanced MR angiography at 3T.
AJNR Am J Neuroradiol. 2010 Jan; 31(1):80-5.AA

Abstract

BACKGROUND AND PURPOSE

Four-dimensional contrast-enhanced MR angiography (4D-CE-MRA) at 3T may replace digital subtraction angiography (DSA) for certain diagnostic purposes in patients with intracranial dural arteriovenous fistula (DAVF). The aim of this study was to test the hypothesis that 4D-CE-MRA at 3T enables the same characterization of intracranial DAVFs as DSA.

MATERIALS AND METHODS

The study population consisted of 18 consecutive patients with intracranial DAVFs (11 women, 7 men; age range, 35-82 years; mean age, 64.8 years). They underwent 4D-CE-MRA at 3T and DSA. The 4D-CE-MRA series combined randomly segmented central k-space ordering, keyhole imaging, sensitivity encoding, and half-Fourier imaging. We obtained 30 dynamic scans every 1.9 seconds with a spatial resolution of 1 x 1 x 1.5 mm. Two independent readers reviewed the 4D-CE-MRA images for main arterial feeders, fistula site, and venous drainage. Interobserver and intermodality agreement was assessed by kappa statistics.

RESULTS

At DSA, 8 fistulas were located at the transverse sigmoid sinus; 8, at the cavernous sinus; and 2, at the sinus adjacent to the foramen magnum. Interobserver agreement was fair for the main arterial feeders (kappa = 0.59), excellent for the fistula site (kappa = 0.91), and good for venous drainage (kappa = 0.86). Intermodality agreement was moderate for the main arterial feeders (kappa = 0.68) and excellent for the fistula site (kappa = 1.0) and venous drainage (kappa = 1.0).

CONCLUSIONS

The agreement between 4D-CE-MRA and DSA findings was good to excellent with respect to the fistula site and venous drainage.

Authors+Show Affiliations

Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

19833802

Citation

Nishimura, S, et al. "Evaluation of Dural Arteriovenous Fistulas With 4D Contrast-enhanced MR Angiography at 3T." AJNR. American Journal of Neuroradiology, vol. 31, no. 1, 2010, pp. 80-5.
Nishimura S, Hirai T, Sasao A, et al. Evaluation of dural arteriovenous fistulas with 4D contrast-enhanced MR angiography at 3T. AJNR Am J Neuroradiol. 2010;31(1):80-5.
Nishimura, S., Hirai, T., Sasao, A., Kitajima, M., Morioka, M., Kai, Y., Omori, Y., Okuda, T., Murakami, R., Fukuoka, H., Awai, K., Kuratsu, J. I., & Yamashita, Y. (2010). Evaluation of dural arteriovenous fistulas with 4D contrast-enhanced MR angiography at 3T. AJNR. American Journal of Neuroradiology, 31(1), 80-5. https://doi.org/10.3174/ajnr.A1898
Nishimura S, et al. Evaluation of Dural Arteriovenous Fistulas With 4D Contrast-enhanced MR Angiography at 3T. AJNR Am J Neuroradiol. 2010;31(1):80-5. PubMed PMID: 19833802.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Evaluation of dural arteriovenous fistulas with 4D contrast-enhanced MR angiography at 3T. AU - Nishimura,S, AU - Hirai,T, AU - Sasao,A, AU - Kitajima,M, AU - Morioka,M, AU - Kai,Y, AU - Omori,Y, AU - Okuda,T, AU - Murakami,R, AU - Fukuoka,H, AU - Awai,K, AU - Kuratsu,J-I, AU - Yamashita,Y, Y1 - 2009/10/15/ PY - 2009/10/17/entrez PY - 2009/10/17/pubmed PY - 2010/3/20/medline SP - 80 EP - 5 JF - AJNR. American journal of neuroradiology JO - AJNR Am J Neuroradiol VL - 31 IS - 1 N2 - BACKGROUND AND PURPOSE: Four-dimensional contrast-enhanced MR angiography (4D-CE-MRA) at 3T may replace digital subtraction angiography (DSA) for certain diagnostic purposes in patients with intracranial dural arteriovenous fistula (DAVF). The aim of this study was to test the hypothesis that 4D-CE-MRA at 3T enables the same characterization of intracranial DAVFs as DSA. MATERIALS AND METHODS: The study population consisted of 18 consecutive patients with intracranial DAVFs (11 women, 7 men; age range, 35-82 years; mean age, 64.8 years). They underwent 4D-CE-MRA at 3T and DSA. The 4D-CE-MRA series combined randomly segmented central k-space ordering, keyhole imaging, sensitivity encoding, and half-Fourier imaging. We obtained 30 dynamic scans every 1.9 seconds with a spatial resolution of 1 x 1 x 1.5 mm. Two independent readers reviewed the 4D-CE-MRA images for main arterial feeders, fistula site, and venous drainage. Interobserver and intermodality agreement was assessed by kappa statistics. RESULTS: At DSA, 8 fistulas were located at the transverse sigmoid sinus; 8, at the cavernous sinus; and 2, at the sinus adjacent to the foramen magnum. Interobserver agreement was fair for the main arterial feeders (kappa = 0.59), excellent for the fistula site (kappa = 0.91), and good for venous drainage (kappa = 0.86). Intermodality agreement was moderate for the main arterial feeders (kappa = 0.68) and excellent for the fistula site (kappa = 1.0) and venous drainage (kappa = 1.0). CONCLUSIONS: The agreement between 4D-CE-MRA and DSA findings was good to excellent with respect to the fistula site and venous drainage. SN - 1936-959X UR - https://www.unboundmedicine.com/medline/citation/19833802/Evaluation_of_dural_arteriovenous_fistulas_with_4D_contrast_enhanced_MR_angiography_at_3T_ L2 - http://www.ajnr.org/cgi/pmidlookup?view=long&pmid=19833802 DB - PRIME DP - Unbound Medicine ER -