New non-invasive sonographic modality for intracranial pressure/volume monitoring

Fountas, Kostas N.; Sitkauskas, Arturas; Troup, E. Christopher; Feltes, Carlos H.; Dimopoulos, Vasilios; Deltuva, Vytenis Pranas; Daubaris, Gediminas; Ragauskas, Arminas; Robinson, Joe Sam

doi:10.1007/s00381-002-0573-4

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Monitoring Cerebral Blood Flow1

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“…Fountas et al [16 ] used their original method [17], based on the measurement of ultrasound propagation speed through the brain parenchyma, to assess cerebral autoregulation. Non-invasive estimation of slow Bwaves by this method positively correlated (2s ¼ 8.9%, P < 0.0001) with the slow waves recorded from the invasive ICP monitor.…”

Section: Monitoring Cerebral Blood Flowmentioning

confidence: 99%

Monitoring of head injured patients

Timofeev

Gupta²

2005

Current Opinion in Anaesthesiology

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Section: Monitoring Cerebral Blood Flowmentioning

confidence: 99%

Monitoring of head injured patients

Timofeev

Gupta²

2005

Current Opinion in Anaesthesiology

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The clinical application of non-invasive intracranial blood volume pulse wave monitoring

et al. 2005

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An ultrasonic method was used to non-invasively measure intracranial blood volume (IBV) pulse waveforms. This technology has previously shown a strong association between invasively recorded ICP pulse waves and non-invasively recorded IBV pulse waves. The objective of the present study was to investigate the diagnostic value of non-invasively measured IBV pulse waves in the cases of different pathologies. A total of 75 patients were examined and these included cases of acute, chronic and stabilized hydrocephalus, spinal cord injury and terminal blood flow. These were compared to a control group of 53 healthy volunteers. The object of comparison was normalized and averaged IBV pulse waves. Pathological IBV pulse waveforms were compared with IBV pulse waveforms of the normal group using sub-wave values, the area under waveform curve and the Euclidean distance calculation. The non-invasively measured IBV pulse waveform is not significantly dependent on acoustic path, gender or age. A detectable change in IBV pulse waveform shape was observed in situations when disturbance in intracranial hydrodynamics was present, e.g. during hypoventilation tests, in cases of terminal blood flow and hydrocephaly, depicting the level of hydrocephalus activity and the patient's compensatory capabilities as well as the effect of treatment.

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Intracranial pressure: A role for a surrogate measurement?*

Schleien¹

2010

Pediatric Critical Care Medicine

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New non-invasive sonographic modality for intracranial pressure/volume monitoring

Abstract: The non-invasive character of this method could extend the use of cerebral perfusion pressure measurement to several other neurosurgical entities, such as hydrocephalus, pseudotumor cerebri, chronic headache, and spinal cord injuries.

Cited by 3 publications

References 5 publications

Monitoring of head injured patients

Monitoring of head injured patients

The clinical application of non-invasive intracranial blood volume pulse wave monitoring

Intracranial pressure: A role for a surrogate measurement?*

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