Intraluminal Diameters of Middle Cerebral Branches for Microanastomoses

Waddington, Margaret M.

doi:10.1080/01616412.1979.11739542

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…Almost all large anatomical studies of STA and MCA dimensions have been performed in cadavers or at autopsy, with the inherent inaccuracy that fixatives and the use of latex-injected vessels may cause in the vessels studied (Kadri et al, 2007;Kawashima et al, 2005;Marano et al, 1985;Pinar and Govsa, 2006;Stock et al, 1980;Waddington, 1979). In addition, STA sizes are usually reported at the level of the zygoma or bifurcation and not at the site of potential microanastomosis.…”

Section: Vessel Dimension and Clinical Diseasementioning

confidence: 99%

Intraoperative Blood Flow Analysis of Direct Revascularization Procedures in Patients with Moyamoya Disease

Lee

Guzman

Bell-Stephens

et al. 2010

J Cereb Blood Flow Metab

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Moyamoya disease is characterized by the progressive stenosis and often occlusion of the terminal internal carotid arteries, which leads to ischemic and hemorrhagic injuries. The etiology is unknown and surgical revascularization remains the mainstay treatment. We analyzed various hemodynamic factors in 292 patients with moyamoya disease, representing 496 revascularization procedures, including vessel dimension and intraoperative blood flow, using a perivascular ultrasonic flowprobe. Mean middle cerebral artery (MCA) flow rate was 4.4 ± 0.26 mL/min. After superficial temporal artery (STA)-MCA bypass surgery, flows at the microanastomosis were increased fivefold to a mean of 22.2 ± 0.8 mL/min. The MCA flows were significantly lower in the pediatric (16.2 ± 1.3 mL/min) compared with the adult (23.9 ± 1.0 mL/min; P<0.0001) population. Increased local flow rates were associated with clinical improvement. Permanent postoperative complications were low (<5%), but very high postanastomosis MCA flow was associated with postoperative stroke (31.2 ± 6.8 mL/min; P=0.045), hemorrhage (32.1 ± 10.2 mL/min; P=0.045), and transient neurologic deficits (28.6 ± 5.6 mL/min; P=0.047) compared with controls. Other flow and vessel dimension data are presented to elucidate the hemodynamic changes related to the vasculopathy and subsequent to surgical intervention.

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Section: Vessel Dimension and Clinical Diseasementioning

confidence: 99%

Intraoperative Blood Flow Analysis of Direct Revascularization Procedures in Patients with Moyamoya Disease

Lee

Guzman

Bell-Stephens

et al. 2010

J Cereb Blood Flow Metab

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“…Moreover, such measurements like internal diameter are important for planning microanastomosis bypass procedures and percutaneous transluminal angioplasty procedures in MCA stenosis (Spetzler and Chater, 1974; Waddington, 1979; Lee et al, 2003). However, most previous studies have focused mostly on MCA cortical branches and their variations and intraluminal diameters (Ring, 1962; Ring and Waddington, 1967; Umansky et al, 1985, 1988; Ciszek et al, 1996; Lang, 2001).…”

Section: Discussionmentioning

confidence: 99%

Three‐dimensional morphometrical analysis of the M1 segment of the middle cerebral artery: Potential clinical and neurosurgical implications

Żurada¹,

Gielecki

Tubbs³

et al. 2010

Clinical Anatomy

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With an increase in the understanding of the formation and treatment of cerebral aneurysms and an improvement in imaging technology, actual standardized measurement values for the cerebral arteries are necessary. Therefore, the aim of this study was to provide a detailed assessment of the three-dimension (3D) morphology (vessel's curvature and trajectory) and 3D-morphometry of the M1 segment of the middle cerebral artery using computer tomography angiography (CTA) images. The DICOM files from CTA of 40 male and 75 female individuals with a mean age of 50.1 years were analyzed using an interactive postprocessing 3D volume-rendering algorithm. Specifically, the M1 segment was evaluated. Calculations included the length, internal diameter, volume, deviation (DI) and tortuosity indices (TI). The M1 segment had a mean internal diameter of 2.23 mm and was greater in men. M1 asymmetry was identified in 23.4% of the individuals and was more common in women. The mean length was 15.62 mm and the left M1 segments were a little longer. The mean volume of the M1 segments was 63.92 mm(3) , and this was typically greater in men and on the left sides. The mean TI and DI for the M1 segment were 0.91 and 2.17 mm, respectively. Therefore, the M1 segments are only slightly curved or straight in their course. In addition, the longest vascular M1 segments are more deviated (curved) and more tortuous. Such standardized data as presented herein may be useful in the preprocedural evaluation of patients with intracranial vascular pathology of the M1 segment.

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“…Measurements of its cortical branches over the cerebral convexity have been performed in fixed brains, and the operative microscope has been used to ascertain the most suitable cortical vessel for the extracranial-intracranial anastomosis. [17][18][19] As part of the ongoing work in our laboratory, we examined 34 unfixed cerebral hemispheres under magnification with the operative microscope. To facilitate the dissection, a polyester casting resin was manually injected without overdistending the vessels.…”

Section: Introductionmentioning

confidence: 99%

Superficial Temporal Artery To Middle Cerebral Artery Anastomoses in the Sylvian Fissure: Case Report

et al. 1984

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Intraluminal Diameters of Middle Cerebral Branches for Microanastomoses

Cited by 9 publications

References 3 publications

Intraoperative Blood Flow Analysis of Direct Revascularization Procedures in Patients with Moyamoya Disease

Intraoperative Blood Flow Analysis of Direct Revascularization Procedures in Patients with Moyamoya Disease

Three‐dimensional morphometrical analysis of the M1 segment of the middle cerebral artery: Potential clinical and neurosurgical implications

Superficial Temporal Artery To Middle Cerebral Artery Anastomoses in the Sylvian Fissure: Case Report

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