The early development of neurosonology: III. Pulsatile echoencephalography and Doppler techniques

White, D. N.

doi:10.1016/0301-5629(92)90045-c

Cited by 7 publications

(3 citation statements)

References 153 publications

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“…Detection of cerebral pulsations by using pulsatile echoencephalography was particularly well grasped by Canadian researcher D.N. White in two peer-reviewed scientific papers published in 1980 and 1992, respectively [ 24 , 25 ], citing French works on UCTS. To this, we should add a dozen French medical doctoral thesis from 1983 to 1994 and, more recently, several PhDs in science that back-up the scientific validity of the method, and confirm that cerebral pulsation measurement can be recorded in standardized and reproducible conditions.…”

Section: Scientific Backgroundmentioning

confidence: 99%

Technical Assessment of Ultrasonic Cerebral Tomosphygmography and New Scientific Evaluation of Its Clinical Interest for the Diagnosis of Electrohypersensitivity and Multiple Chemical Sensitivity

Greco

2020

Diagnostics

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Ultrasonic cerebral tomosphygmography (UCTS), also known as “encephaloscan”, is an ultrasound-based pulsatile echoencephalography for both functional and anatomical brain imaging investigations. Compared to classical imaging, UCTS makes it possible to locate precisely the spontaneous brain tissue pulsations that occur naturally in temporal lobes. Scientific publications have recently validated the scientific interest of UCTS technique but clinical use and industrial development of this ancient brain imaging technique has been stopped notably in France, not for scientific or technical reasons but due to a lack of financing support. UCTS should be fundamentally distinguished from transcranial Doppler ultrasonography (TDU), which, although it also uses pulsed ultrasounds, aims at studying the velocity of blood flow (hemodynamics) in the cerebral arteries by using Doppler effect, especially in the middle cerebral artery of both hemispheres. Instead, UCTS has the technical advantage of measuring and locating spontaneous brain tissue pulsations in temporal lobes. Recent scientific work has shown the possibility to make an objective diagnosis of electrohypersensitivity (EHS) and multiple chemical sensitivity (MCS) by using UCTS, in conjunction with TDU investigation and the detection of several biomarkers in the peripheral blood and urine of the patients. In this paper, we independently confirm the clinical interest of using UCTS for the diagnosis of EHS and MCS. Moreover, it has been shown that repetitive use of UCTS in EHS and/or MCS patients can contribute to the objective assessment of their therapeutic follow-up. Since classical CT scan and MRI are usually not contributive for the diagnosis and are poorly tolerated by these patients, UCTS should therefore be considered as one of the best imaging technique to be used for the diagnosis of these new disorders and the follow-up of patients.

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Section: Scientific Backgroundmentioning

confidence: 99%

Technical Assessment of Ultrasonic Cerebral Tomosphygmography and New Scientific Evaluation of Its Clinical Interest for the Diagnosis of Electrohypersensitivity and Multiple Chemical Sensitivity

Greco

2020

Diagnostics

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“…Comprehensive reviews of this work can be found in Campbell et al (1970) and White (1992). It was first observed in 1956 (Leksell) that the amplitude of the US signal from the cerebral midline pulsated synchronously with the cardiac cycle.…”

Section: Introductionmentioning

confidence: 99%

Tissue Pulsatility Imaging of Cerebral Vasoreactivity During Hyperventilation

Kucewicz

Dunmire

Giardino

et al. 2008

Ultrasound in Medicine & Biology

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Tissue Pulsatility Imaging (TPI) is an ultrasonic technique that is being developed at the University of Washington to measure tissue displacement or strain due to blood flow over the cardiac and respiratory cycles. This technique is based in principle on plethysmography, an older non-ultrasound technology for measuring expansion of a whole limb or body part due to perfusion. TPI adapts tissue Doppler signal processing methods to measure the "plethysmographic" signal from hundreds or thousands of sample volumes in an ultrasound image plane. This paper presents a feasibility study to determine if TPI can be used to assess cerebral vasoreactivity. Ultrasound data were collected transcranially through the temporal acoustic window from four subjects before, during, and after voluntary hyperventilation. In each subject, decreases in tissue pulsatility during hyperventilation were observed that were statistically correlated with the subject's end-tidal CO 2 measurements.

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“…Transcranial color-coded Doppler ultrasonography (TCCD) enables insonation of the cerebral arteries through the standard acoustic windows. In 1967, Fox was the first to perform the Doppler recording of cerebral arteries [262,263]. The publication by H. Bada from Springfield, Illinois [264], has been of a great importance for further development.…”

Section: The Transcranial Color-coded Doppler Ultrasonographymentioning

confidence: 99%

The Role of Transcranial Doppler Sonography in the Management of Pediatric Hydrocephalus

Kolarovszki¹

2019

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IV 5. Etiology of hydrocephalus 5.1 Congenital hydrocephalus 5.2 Acquired postnatal hydrocephalus 6. Pathophysiology of hydrocephalus 6.1 Pathophysiological mechanisms of onset and development of hydrocephalus 6.2 Pathologic changes in hydrocephalus 6.3 Vascular changes in hydrocephalus 6.4 Biochemical changes in hydrocephalus 6.5 Changes of cerebral metabolism in hydrocephalus 7. Clinical manifestations of pediatric hydrocephalus 8. Basic properties of ultrasound 9. Biological effects of ultrasound 9.1 Thermal effects 9.2 Cavitation 9.3 Other mechanic effects 10. Doppler sonography 10.1 The role of Doppler principle in ultrasonography 10.2 The Doppler systems with continuous wave (CW) 10.3 The pulsatility Doppler systems (the pulsed waves, PW) 10.4 The color flow Doppler tomography (CFD, real-time two-dimensional Doppler) 10.5 The technique of the color Doppler power mapping (color Doppler energy, CDE; color power angio, CPA; Doppler power mode; power mapping) 11. The transcranial color-coded Doppler ultrasonography 11.1 The transcranial color-coded Doppler ultrasonographic examination 12. The Doppler curve, measured and calculated parameters 12.1 The Doppler curve 12.2 Measured and assessed parameters of the Doppler curve 12.3 Development of Doppler parameters of cerebral circulation: physiological values 12.3.1 Neonates 12.3.2 Infancy V 12.4 The factors influencing the value of qualitative indices of the Doppler curve 12.4.1 The factors increasing the resistance index of cerebral arteries 12.4.2 Factors decreasing the resistance index of cerebral arteries 13. Morphology of the cerebral ventricles in pediatric hydrocephalus 14. Assessment of Doppler parameters of the cerebral arteries in children with hydrocephalus 15. Case reports 15.1 Assessment of intracranial dynamics in the preterm neonate with hydrocephalus before and after insertion of external ventricular drainage 15.2 Observation of intraindividual dynamics in the preterm neonate with asphyxia and development of progressive hydrocephalus regarding indication of drainage procedure 15.3 Impact of tachycardia on Doppler parameters of blood flow in ACA in the infant with active hydrocephalus 15.4 Assessment of intracranial dynamics of the infant with schizencephaly 15.5 Assessment of intracranial dynamics in the term neonate with congenital hydrocephalus, Arnold-Chiari malformation type II and lumbosacral myelomeningocele 15.6 Assessment of intracranial dynamics in the preterm neonate with posthemorrhagic hydrocephalus 15.7 Assessment of intracranial dynamics in the neonate with occipital encephalocele and congenital hydrocephalus 15.8 Assessment of intracranial dynamics in the term neonate with birth trauma, intracerebral hemorrhage and hemocephalus 15.9 Assessment of intracranial dynamics in the neonate with congenital hydrocephalus and VP shunt revision 15.10 Assessment of intracranial dynamics of congenital hydrocephalus in prenatal and postnatal period

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The early development of neurosonology: III. Pulsatile echoencephalography and Doppler techniques

Cited by 7 publications

References 153 publications

Technical Assessment of Ultrasonic Cerebral Tomosphygmography and New Scientific Evaluation of Its Clinical Interest for the Diagnosis of Electrohypersensitivity and Multiple Chemical Sensitivity

Technical Assessment of Ultrasonic Cerebral Tomosphygmography and New Scientific Evaluation of Its Clinical Interest for the Diagnosis of Electrohypersensitivity and Multiple Chemical Sensitivity

Tissue Pulsatility Imaging of Cerebral Vasoreactivity During Hyperventilation

The Role of Transcranial Doppler Sonography in the Management of Pediatric Hydrocephalus

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