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. 2023 Oct;45(10):1287-1293.
doi: 10.1007/s00276-023-03232-6. Epub 2023 Aug 24.

Anatomical information of the lenticulostriate arteries on high-resolution 3D-TOF MRA at 3 T: comparison with 3D-DSA

Sanae Takahashi  1 , Miho Gomyo  2 , Kazuhiro Tsuchiya  3 , Tatsuya Yoshioka  4 , Kuninori Kobayashi  1 , Akihito Nakanishi  4 , Kenichi Yokoyama  5
Affiliations

Anatomical information of the lenticulostriate arteries on high-resolution 3D-TOF MRA at 3 T: comparison with 3D-DSA

Sanae Takahashi et al. Surg Radiol Anat. 2023 Oct.

Abstract

Purpose: As the lenticulostriate arteries (LSAs) perfuse neurologically important areas, it is necessary to accurately assess the origin and number of the LSAs before surgery. Although three-dimensional time-of-flight MR angiography (3D-TOF MRA) is a non-invasive procedure, it requires high-resolution (HR) images to depict the LSAs with a small diameter. Therefore, we performed 3D-TOF MRA with the maximum HR (HR-MRA) using a 3 T scanner to examine whether a good depiction of the LSAs, equivalent to that of digital subtraction angiography (DSA), could be obtained.

Methods: Our study group comprised 16 consecutive patients who underwent HR-MRA and 3D-DSA. In both studies, we evaluated the localization of the origin from M1, M2, or A1 segments, their number of stems, and depiction.

Results: There was no significant difference in the visualization of the LSAs between HR-MRA and 3D-DSA (P values; M1, M2, and A1 = 0.39, 0.69, and 0.69, respectively), and both the number of stems and the localization of the origin of the LSAs corresponded between the two examinations.

Conclusion: HR-MRA at 3 T can depict the LSA well. It reveals the number of the LSA stems and the LSA origin comparatively with DSA.

Keywords: Digital subtraction angiography (DSA); High resolution; Lateral lenticulostriate artery (LSA); Magnetic resonance angiography (MRA); Magnetic resonance imaging (MRI).

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