Can CT Angiography Reconstructed from CT Perfusion Source Data on a 320-section Volume CT Scanner Replace Conventional CT Angiography for the Evaluation of Intracranial Arteries?

Overview

Journal Jpn J Radiol

Publisher Springer

Specialty Radiology

Date 2015 May 9

PMID 25952405

Citations 3

Authors

Masafumi Kidoh

Toshinori Hirai

Seitaro Oda

Daisuke Utsunomiya

Takayuki Kawano

Shigetoshi Yano

Hideo Nakamura

Keishi Makino

Yasuhiko Iryo

Minako Azuma

Eri Hayashida

Takeshi Nakaura

Yasuyuki Yamashita

Affiliations

Soon will be listed here.

Abstract

Purpose: To compare conventional CT angiography (CTA) and CTA reconstructed from CT perfusion source data (perfusion CTA) acquired on a 320-section CT scanner for the evaluation of intracranial arteries.

Materials And Methods: Our study included 7 patients who had undergone trapping of an intracranial aneurysm and placement of a bypass. All underwent conventional and perfusion CTA and digital subtraction angiography (DSA). Using DSA as the gold standard, 2 radiologists evaluated 10 arterial segments on conventional and perfusion CTA images. On a 4-point scale they independently scored the image quality and vascular visualization of the intracranial arteries on the conventional and perfusion CTA images. The effective radiation dose to each patient was also recorded.

Results: A total of 65 arterial segments without apparent abnormalities were assessed. While the mean image quality score tended to be slightly higher for conventional than perfusion CTA, there was no significant difference. The effective dose for perfusion and conventional CTA with unenhanced CT was 4.2 mSv and 3.1 mSv, respectively, for all patients.

Conclusion: For the evaluation of intracranial arteries using DSA as the gold standard, perfusion CTA yields image quality and vascular visualization similar to conventional CTA at an acceptable radiation dose.

Citing Articles

Four-dimensional CT angiography (4D-CTA) in the evaluation of juvenile nasopharyngeal angiofibromas: comparison with digital subtraction angiography (DSA) and surgical findings.

Xiao Z, Zheng Y, Li J, Chen D, Liu F, Cao D Dentomaxillofac Radiol. 2017; 46(8):20170171.

PMID: 28845691 PMC: 5965941. DOI: 10.1259/dmfr.20170171.

Additive value of 320-section low-dose dynamic volume CT in relation to 3-T MRI for the preoperative evaluation of brain tumors.

Hayashida E, Hirai T, Nakamura H, Kidoh M, Azuma M, Iryo Y Jpn J Radiol. 2016; 34(10):691-699.

PMID: 27566608 DOI: 10.1007/s11604-016-0576-9.

Reduction of misregistration on cerebral four-dimensional computed tomography angiography images using advanced patient motion correction reconstruction.

Kunitomi Y, Watanabe Y, Arisawa A, Tsukabe A, Tanaka H, Takahashi H Jpn J Radiol. 2016; 34(9):605-10.

PMID: 27379502 DOI: 10.1007/s11604-016-0563-1.

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