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Assess the feasibility, diagnostic quality, and surgical utility of combined intraoperative CT angiography and dynamic CT perfusion imaging using a 40-slice sliding-gantry scanner during cerebral aneurysm surgery.

October 9, 2009Journal of neurosurgery

Intraoperative computed tomography angiography with computed tomography perfusion imaging in vascular neurosurgery: feasibility of a new concept

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Assess the feasibility, diagnostic quality, and surgical utility of combined intraoperative CT angiography and dynamic CT perfusion imaging using a 40-slice sliding-gantry scanner during cerebral aneurysm surgery.
Prospective pilot series of N=10 patients with unruptured aneurysms undergoing intraoperative scanning with a 40-slice sliding-gantry CT scanner.
Acquired multimodal CT scans consisting of dynamic CT perfusion (PCT) followed by intracranial CT angiography (CTA), including repeat scans following aneurysm clip adjustment.
Assessed diagnostic image quality via blinded consensus reading by an experienced neurosurgeon and neuroradiologist using a 6-point evaluation scale.
Image quality was rated excellent or good in 9 of 10 PCT data sets and 12 of 12 CTA data sets; one PCT scan was insufficient due to streak artifacts from head-clamp pins.
In 1 patient, intraoperative PCT detected acute ischemia from clip-induced arterial stenosis, prompting immediate clip repositioning that restored perfusion.

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Implication

Prospective pilot study shows feasibility of intraoperative CT angiography and perfusion imaging in aneurysm surgery, indicating rapid detection of impaired blood flow.

Cite This Study

Schichor et al. (2009) studied this question.

synapsesocial.com/papers/6a893cbf4e16d35695eb1744 https://doi.org/10.3171/2009.9.jns081255

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Implication

Prospective pilot study shows feasibility of intraoperative CT angiography and perfusion imaging in aneurysm surgery, indicating rapid detection of impaired blood flow.

Intraoperative computed tomography angiography with computed tomography perfusion imaging in vascular neurosurgery: feasibility of a new concept

Key Points

Discussion

Implication

Cite This Study

Intraoperative computed tomography angiography with computed tomography perfusion imaging in vascular neurosurgery: feasibility of a new concept

Key Points

Discussion

Implication

Cite This Study

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