Changes of brain perfusion after endovascular embolization of intracranial arteriovenous malformations visualized by 99mTc-ECD SPECT

Nocuń, Anna; Szajner, Maciej; Obszańska, Katarzyna; Gil, Krzysztof; Wypych, Marek; Chrapko, Beata; Zaorska-Rajca, J

doi:10.1097/mnm.0b013e32831392eb

Cited by 7 publications

(6 citation statements)

References 18 publications

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“…SPECT scans were assessed semiquantitatively with Brain SPECT Quantification software (Compart Medical Systems, Poland). The method, which was described previously [10,11], consists of the four major steps.…”

Section: Discussionmentioning

confidence: 99%

Quantitative evaluation of crossed cerebellar diaschisis, using voxel-based analysis of Tc-99m ECD brain SPECT

Nocuń¹,

Wojczal²,

Szczepańska-Szerej³

et al. 2013

Nucl. Med. Rev.

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Section: Discussionmentioning

confidence: 99%

Quantitative evaluation of crossed cerebellar diaschisis, using voxel-based analysis of Tc-99m ECD brain SPECT

Nocuń¹,

Wojczal²,

Szczepańska-Szerej³

et al. 2013

Nucl. Med. Rev.

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“…The "success" of such an intervention is usually expressed as percentage of nidus reduction as judged by conventional angiography taking into consideration the change in extension of the nidus as well as the change in flow. More than 20 years ago, the measurement of cerebral blood flow (CBF) in patients with AVMs by means of single photon emission tomography (SPECT) was mainly performed to investigate perinidal perfusion deficits and the pressure-break-through phenomenon [1][2][3][4][5][6] . The same applies to studies using positron emission tomography (PET) 7,8 or xenon-enhanced computed tomography 9,10 .…”

Section: Introductionmentioning

confidence: 99%

Measurement of Blood Flow in Arteriovenous Malformations before and after Embolization Using Arterial Spin Labeling

Suazo

Foerster²,

Fermin

et al. 2012

Interv Neuroradiol

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The assessment of shunt reduction after an embolization of an arteriovenous malformation (AVM) or fistula (AVF) from conventional angiography is often difficult and may be subjective. Here we present a completely non-invasive method using magnetic resonance imaging (MRI) to measure shunt reduction. Using pulsed arterial spin labeling (PASL), we determined the relative amount of signal attributed to the shunt over 1.75 s and 6 different slices covering the lesion. This amount of signal from the shunt was related to the total signal from all slices and measured before and after embolization. The method showed a fair agreement between the PASL results and the judgement from conventional angiography. In the case of a total or subtotal shunt occlusion, PASL showed a shunt reduction between 69% and 92%, whereas in minimal shunt reduction as judged by conventional angiography, the ASL result was −6% (indicating slightly increased flow) to 35% in a partially occluded vein of Galen aneurysm. The PASL method proved to be fairly reproducible (up to 2% deviation between three measurements without interventions). On conclusion, PASL is able to reliably measure the amount of shunt reduction achieved by embolization of AVMs and AVFs.

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“…Even if no erratic embolus of glue has occurred, venous or sinus thrombosis may happen through flow modifications after embolization. [18][19][20] When draining AV shunts, these structures are under high pressure and flow: changes in these hemodynamic conditions can create secondary sludge phenomena, stagnation, and thromboses. A difficult question is to know if patients should be treated by anticoagulation, and when.…”

Section: Discussionmentioning

confidence: 99%

Complications in pediatric interventional neuroradiology management. Reflections on a personal experience

Rodesch

Smajda

2020

Interv Neuroradiol

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Pediatric interventional neuroradiology is a rewarding but demanding specialty. It cannot be classified as a miniaturized technical procedure simply because it deals with small vessels in small patients but remains a field requiring specific knowledge combining clinical, anatomical, physiologic, and technical features. Complications that occur remain terrible experiences in this population whose patients have not personally requested to be treated for their vascular malformations. The aim of this article is to evoke the various possible groups of complications that may occur during a pediatric endovascular procedure in order to make physicians aware of these problems and help them to avoid them.

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Changes of brain perfusion after endovascular embolization of intracranial arteriovenous malformations visualized by 99mTc-ECD SPECT

Cited by 7 publications

References 18 publications

Quantitative evaluation of crossed cerebellar diaschisis, using voxel-based analysis of Tc-99m ECD brain SPECT

Quantitative evaluation of crossed cerebellar diaschisis, using voxel-based analysis of Tc-99m ECD brain SPECT

Measurement of Blood Flow in Arteriovenous Malformations before and after Embolization Using Arterial Spin Labeling

Complications in pediatric interventional neuroradiology management. Reflections on a personal experience

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