The role of intraoperative micro-Doppler ultrasound in verifying proper clip placement in intracranial aneurysm surgery

Kapsalaki, Eftychia; Lee, G.P.; Robinson, Joe Sam; Grigorian, Arthur A.; Fountas, Kostas N.

doi:10.1016/j.jocn.2006.11.006

Cited by 44 publications

(19 citation statements)

References 17 publications

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“…This technique can also be used to detect flow in perforators (9); although some authors have questioned this application (9), the detection rate can average 83% of perforating arteries involved (38). MicroDoppler can also detect residual flow in incompletely clipped aneurysms (23,93), with a zero rate of false-negative results and a 2% rate of false-positive results (64).…”

Section: Micro-dopplermentioning

confidence: 99%

Monitoring Techniques for Prevention of Procedure-Related Ischemic Damage in Aneurysm Surgery

Bacigaluppi¹,

Fontanella²,

Manninen³

et al. 2012

World Neurosurgery

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Section: Micro-dopplermentioning

confidence: 99%

Monitoring Techniques for Prevention of Procedure-Related Ischemic Damage in Aneurysm Surgery

Bacigaluppi¹,

Fontanella²,

Manninen³

et al. 2012

World Neurosurgery

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“…The application of other intraoperative additional methodologies also turned out to be especially useful in the treatment of VB aneurysms; intraoperative doppler to test patency of afferent vessels after clipping has been used in nearly every case [Akdemir, 2006;Kapsalaki, 2008]; more recently, we have used intraoperative fluoroangiography [Raabe, 2005;Dashti, 2009] and endoscopic assistance to microneurosurgery, which has revealed particularly effective in the treatment of lesions located in the distal portion of basilar artery [Taniguchi, 1999;Kalavakonda, 2002;.…”

Section: Surgical Proceduresmentioning

confidence: 99%

Skull Base Approaches for Vertebro-Basilar Aneurysms

Galzio¹,

Paulis²,

Cola³

2012

Explicative Cases of Controversial Issues in Neurosurgery

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“…By monitoring CBF during neurosurgery, surgeons can be promptly warned about a reduction in blood flow, allowing quick intervention to minimize the risks of postoperative neurologic deficits. Several intraoperative monitoring tools have been developed and evaluated in recent years, including digital subtraction angiography, 1-3 electrophysiological monitoring, [4][5][6] thermal diffusion flowmetry, 7-9 microvascular Doppler sonography, [10][11][12] and indocyanine green angiography. [13][14][15][16] Recent reviews of these techniques during aneurysm clipping procedures concluded that none were completely reliable in all situations and that combining multiple techniques provided a more accurate picture of the hemodynamic state.…”

Section: Introductionmentioning

confidence: 99%

Intraoperative laser speckle contrast imaging with retrospective motion correction for quantitative assessment of cerebral blood flow

et al. 2014

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Abstract. Although multiple intraoperative cerebral blood flow (CBF) monitoring techniques are currently available, a quantitative method that allows for continuous monitoring and that can be easily integrated into the surgical workflow is still needed. Laser speckle contrast imaging (LSCI) is an optical imaging technique with a high spatiotemporal resolution that has been recently demonstrated as feasible and effective for intraoperative monitoring of CBF during neurosurgical procedures. This study demonstrates the impact of retrospective motion correction on the quantitative analysis of intraoperatively acquired LSCI images. LSCI images were acquired through a surgical microscope during brain tumor resection procedures from 10 patients under baseline conditions and after a cortical stimulation in three of those patients. The patient's electrocardiogram (ECG) was recorded during acquisition for postprocess correction of pulsatile artifacts. Automatic image registration was retrospectively performed to correct for tissue motion artifacts, and the performance of rigid and nonrigid transformations was compared. In baseline cases, the original images had 25% AE 27% noise across 16 regions of interest (ROIs). ECG filtering moderately reduced the noise to 20% AE 21%, while image registration resulted in a further noise reduction of 15% AE 4%. Combined ECG filtering and image registration significantly reduced the noise to 6.2% AE 2.6% (p < 0.05). Using the combined motion correction, accuracy and sensitivity to small changes in CBF were improved in cortical stimulation cases. There was also excellent agreement between rigid and nonrigid registration methods (15/16 ROIs with <3% difference). Results from this study demonstrate the importance of motion correction for improved visualization of CBF changes in clinical LSCI images. © The Authors.Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

show abstract

The role of intraoperative micro-Doppler ultrasound in verifying proper clip placement in intracranial aneurysm surgery

Cited by 44 publications

References 17 publications

Monitoring Techniques for Prevention of Procedure-Related Ischemic Damage in Aneurysm Surgery

Monitoring Techniques for Prevention of Procedure-Related Ischemic Damage in Aneurysm Surgery

Skull Base Approaches for Vertebro-Basilar Aneurysms

Intraoperative laser speckle contrast imaging with retrospective motion correction for quantitative assessment of cerebral blood flow

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