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Transcranial sonography

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https://www.readbyqxmd.com/read/29207924/speckle-tracking-in-transcranial-ultrasound-allows-noninvasive-analysis-of-pulsation-patterns-of-the-third-ventricle
#1
Benjamin Würzer, Cristina Laza, Jörn Pons-Kühnemann, Manfred Kaps, Bernd Junge, Florian C Roessler
Cerebrospinal fluid (CSF) flow is sensitive to many cerebral disorders. We aimed to develop a noninvasive bedside method to detect physiological and pathological CSF phenomena by measuring pulsation patterns of the third ventricle. By transcranial B-mode ultrasound, electrocardiography (ECG)-gated video loops of the third ventricle were acquired. "Speckle tracking" software was used to quantify the relative change of its width. We conducted measurements of nine cardiac cycles in 11 healthy subjects in sitting and in supine position during Valsalva maneuver to investigate the influence of an increased intracranial pressure on the relative deformation of the third ventricle...
December 1, 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/29201848/intraoperative-transcranial-sonography-for-detection-of-contralateral-hematoma-volume-change-in-patients-with-traumatic-brain-injury
#2
Pil Soo Kim, Seung Han Yu, Jung Hwan Lee, Hyuk Jin Choi, Byung Chul Kim
The authors present two clinical cases, in which intraoperative transcranial sonography (TCS) was used to detect a change in contralateral hematoma volume. A 51-year-old female and a 5-year-old male underwent osteoplastic craniotomy for epidural hematoma removal. Scant contralateral hematoma was evident by preoperative computed tomography in both patients. Intraoperative TCS was used to detect changes in contralateral hematomas. After observing a volume change in one case, a second operation was performed immediately...
October 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29180087/changes-in-blood-flow-velocity-of-the-middle-cerebral-artery-after-carotid-endarterectomy-daily-assessment-with-transcranial-color-coded-sonography
#3
Satoshi Koizumi, Yumiko Yamaoka, Takeshi Matsuo, Toshikazu Kimura, Tomohiro Inoue
BACKGROUND: Hyperperfusion syndrome (HPS) is a well-known complication of carotid endarterectomy (CEA) warranting repeatable inexpensive monitoring. Transcranial color-coded sonography (TCCS) may provide a potential modality for such monitoring, but little is known about TCCS trends after CEA. METHODS: Between January 2016 and February 2017, we prospectively included patients with CEA at our institute in this study. TCCS was performed preoperatively and repeated daily from the operation day until postoperative day (POD) 7...
November 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29178240/post-operative-localization-of-deep-brain-stimulation-electrodes-in-the-subthalamus-using-transcranial-sonography
#4
Lourdes Ispierto, Jorge Muñoz, Josep Maria Cladellas, Patricia Cuadras, Jaume Capellades, Pilar Latorre, Antoni Dávalos, Tim Vancamp, Ramiro Álvarez
OBJECTIVES: The correct positioning of deep brain stimulation electrodes determines the success of surgery. In this study, we attempt to validate transcranial sonography (TCS) as a method for early postoperative confirmation of electrode location in the subthalamic nucleus (STN). MATERIALS AND METHODS: Nineteen patients diagnosed with Parkinson's disease were enrolled in the study. Postoperative TCS was applied to measure the distance between the implanted electrodes and the third ventricle in the axial plane...
November 27, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29159549/-diagnostics-of-wilson-s-disease
#5
REVIEW
W Hermann, D Huster
Wilson's disease is a rare genetic but treatable metabolic disorder which has a favorable prognosis when diagnosed early and treated adequately. Therefore, knowledge of this rare clinical condition and a reliable diagnosis are indispensable. The diagnostic work-up is initiated in cases of unexplained acute or chronic liver disease and/or an extrapyramidal motor disturbance occurring mostly between the 5th and 45th years of life. Manifestations with initial symptoms have occasionally been observed at an age younger than 1 year and later than 70 years...
November 20, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/29114373/coiled-distal-internal-carotid-artery-ica-aneurysm-in-transcranial-sonography
#6
Masoud Mehrpour, Fahimeh Haji-Akhoundi, Babak Zamani
No abstract text is available yet for this article.
July 6, 2017: Iranian Journal of Neurology
https://www.readbyqxmd.com/read/29111425/transcranial-sonographic-findings-may-predict-prognosis-of-gastroprokinetic-drug-induced-parkinsonism
#7
Yoon-Sang Oh, Do-Young Kwon, Joong-Seok Kim, Moon-Ho Park, Daniela Berg
BACKGROUND: Drug-induced parkinsonism (DIP) is one important cause of parkinsonism and a major cause of misleading diagnosis of Parkinson's disease (PD). DIP is caused by dopamine receptor blocking agents. Its symptoms will improve after withdrawal of offending drugs. However, parkinsonism does not regress in several individuals. It may persist or exacerbate despite drug withdrawal. Transcranial sonography (TCS) of the substantia nigra (SN) has been widely used to diagnose PD and differentiate parkinsonism types...
October 19, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29103031/transcranial-sonography-in%C3%A2-neurodegenerative-diseases-with-cognitive-decline
#8
Silvia Favaretto, Uwe Walter, Claudio Baracchini, Annachiara Cagnin
Transcranial sonography (TCS) of the brain parenchyma detects alterations in the substantia nigra (SN), raphe nuclei, and basal ganglia; this technique has been established as a tool for the early diagnosis of Parkinson's disease and differential diagnosis from atypical parkinsonian syndromes. Here, we aimed to review the main applications of TCS in neurodegenerative diseases presenting with dementia syndrome, focusing on Alzheimer's disease (AD), dementia with Lewy bodies (DLB), frontotemporal lobar degeneration, idiopathic normal pressure hydrocephalus, and atypical and secondary parkinsonisms...
November 1, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29082542/structural-abnormality-of-substantia-nigra-induced-by-methamphetamine-abuse
#9
Jost-Julian Rumpf, Jana Albers, Christopher Fricke, Wolf Mueller, Joseph Classen
BACKGROUND: Methamphetamine abuse has been linked to an increased risk of Parkinson's disease. OBJECTIVE: The objective of this study was to investigate structural abnormality of the substantia nigra in past methamphetamine users using transcranial sonography. METHODS: In a cross-sectional, observational study, echogenicity of the substantia nigra was assessed in 59 past methamphetamine users and 59 matched controls. The frequencies of an abnormal spatial extension of the substantia nigra as well as the average sizes of left and right substantia nigra were evaluated...
October 30, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29075554/oxiracetam-or-fastigial-nucleus-stimulation-reduces-cognitive-injury-at-high-altitude
#10
ShengLi Hu, JianTao Shi, Wei Xiong, WeiNa Li, LiChao Fang, Hua Feng
BACKGROUND: Cognitive impairment is common in people travelling to high altitude. Oxiracetam and electrical stimulation of cerebellar fastigial nucleus may have beneficial impacts. This study was to investigate the effects of preconditioning with Oxiracetam or fastigial nucleus stimulation (FNS) on cognitive decline following the ascension to high altitude. METHODS: The study was conducted on 60 male military voluntary members who were divided into control group, Oxiracetam group, and fastigial nucleus stimulation group...
October 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29073663/postpartum-headache-a-prospective-study
#11
Gian Paolo Anzola, Renato Brighenti, Milena Cobelli, Alessia Giossi, Sara Mazzucco, Silvia Olivato, Elisa Pari, Maria Paola Piras, Alessandro Padovani, Fabrizio Rinaldi, Giulia Turri
AIMS: To prospectively assess the incidence and etiology (ie, primary vs symptomatic) of headache in women during the first month postdelivery, with particular emphasis on the type of presentation as a clue for identifying potentially harmful etiologies. A secondary aim was to evaluate the relative frequency of migraine- vs tension-type headache in cases of primary headache. METHODS: A total of 900 consecutive women were enrolled in the study and examined within 3 days of delivery, both clinically and with transcranial color-coded sonography (TCCS)...
October 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/29030715/point-of-care-transcranial-doppler-by-intensivists
#12
REVIEW
Vincent Issac Lau, Robert Thomas Arntfield
In the unconscious patient, there is a diagnostic void between the neurologic physical exam, and more invasive, costly and potentially harmful investigations. Transcranial color-coded sonography and two-dimensional transcranial Doppler imaging of the brain have the potential to be a middle ground to bridge this gap for certain diagnoses. With the increasing availability of point-of-care ultrasound devices, coupled with the need for rapid diagnosis of deteriorating neurologic patients, intensivists may be trained to perform point-of-care transcranial Doppler at the bedside...
October 13, 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/29017105/transcranial-color-coded-duplex-sonography-for-evaluation-of-midline-shift-after-chronic-subdural-hematoma-evacuation-temase-a-prospective-study
#13
Andrea Cattalani, Vincenzo Maria Grasso, Matteo Vitali, Ivan Gallesio, Lorenzo Magrassi, Andrea Barbanera
OBJECTIVE: The incidence of chronic Subdural hematoma (cSDH) is increasing and its rate of recurrence varies from 5 to 33%. A postoperative brain midline-shift (MLS) on computed tomography (CT) equal or larger than 5mm is a risk factor for recurrence. Transcranial color-coded duplex sonography (TCCDS) is a noninvasive bedside reproducible technique useful to detect MLS. The aim of our study was to compare in patients affected by cSDH, the values of MLS obtained pre- and post-operatively by TCCDS and brain CT...
November 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28974846/transcranial-brain-sonography-in-parkinson-s-disease-and-other-parkinsonian-disorders-a-hospital-study-from-tuzla-bosnia-and-herzegovina
#14
Dzevdet Smajlovic, Omer C Ibrahimagic
INTRODUCTION: Transcranial sonography (TCS) is a relatively new ultrasound modality which could display echogenicity of human brain tissue through the intact skull. TCS may be useful in differentiation of idiopathic Parkinson's disease (PD) from other parkinsonian disorders. Therefore, we studied different ultrasound markers by TCS in individuals with Parkinson's disease. PATIENTS AND METHODS: We performed TCS in 44 patients with PD and 22 patients with other parkinsonian disorders...
August 2017: Medical Archives
https://www.readbyqxmd.com/read/28971725/transcranial-sonography-in-psychiatry-as-a-potential-tool-in-diagnosis-and-research
#15
Carsten Drepper, Julia Geißler, Giuseppe Pastura, Rezzak Yilmaz, Daniela Berg, Marcel Romanos, Manfred Gerlach
Objectives During the last two decades' transcranial sonography (TCS) of the brain parenchyma evolved from a pure research tool to a clinical relevant neuroimaging method especially in Parkinson's disease and related movement disorders. The aim of this systematic review is to update and summarize the published TCS findings in psychiatric disorders and critically address the question whether TCS may be a valuable tool for the diagnosis or differential diagnosis of psychiatric disorders similarly to the field of movement disorders...
October 3, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28960441/application-of-2-and-3-dimensional-sonography-using-the-virtual-organ-computer-aided-analysis-technique-to-measure-the-hippocampal-formation-and-its-correlation-with-corrected-gestational-age-in-neonates
#16
Xiaokang Chen, Shiyin Hu, Guorong Lv
OBJECTIVES: The purpose of this study was to use transcranial 2- and 3-dimensional sonography with the Virtual Organ computer-aided analysis (GE Healthcare, Milwaukee, WI) technique to observe the morphologic characteristics of the hippocampal formation and to analyze its correlation with the corrected gestational age. METHODS: Transcranial sonography was performed from the sagittal plane of the anterior fontanel to the sagittal plane of the posterior horn of the lateral ventricle...
September 29, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28956308/bedside-transcranial-sonography-monitoring-in-a-patient-with-hydrocephalus-post-subarachnoid-hemorrhage
#17
Ahmed Najjar, André Y Denault, Michel W Bojanowski
BACKGROUND: Development of hydrocephalus can occur after subarachnoid hemorrhage (SAH). Typically, it is diagnosed with computed tomography, CT, scan. However, transcranial sonography (TCS) can be used particularly in patients with craniotomy which removes the acoustic interference of the skull and allows a closer up visualization of brain structures through the skin. CASE PRESENTATION: We report a 73-year-old woman who was hospitalized for SAH and developed acute hydrocephalus requiring an external ventricular drain (EVD)...
September 27, 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28946178/the-impact-of-temporary-clipping-during-aneurysm-surgery-on-the-incidence-of-delayed-cerebral-ischemia-after-aneurysmal-subarachnoid-hemorrhage
#18
Vesna Malinova, Bawarjan Schatlo, Martin Voit, Patricia Suntheim, Veit Rohde, Dorothee Mielke
OBJECTIVE Clipping of a ruptured intracranial aneurysm requires some degree of vessel manipulation, which in turn is believed to contribute to vasoconstriction. One of the techniques used during surgery is temporary clipping of the parent vessel. Temporary clipping may either be mandatory in cases of premature rupture (rescue) or represent a precautionary or facilitating surgical step (elective). The aim of this study was to study the association between temporary clipping during aneurysm surgery and the incidence of vasospasm and delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage (aSAH) in a large clinical series...
September 15, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28937033/transcranial-sonographic-alterations-of-substantia-nigra-and-third-ventricle-in-parkinson-s-disease-with-or-without-dementia
#19
Zhi-Fen Dong, Cai-Shan Wang, Ying-Chun Zhang, Ying Zhang, Yu-Jing Sheng, Hua Hu, Wei-Feng Luo, Chun-Feng Liu
BACKGROUND: Numerous studies have demonstrated that patients with Parkinson's disease (PD) have a higher prevalence of substantia nigra (SN) hyperechogenicity compared with controls. Our aim was to explore the neuroimaging characteristics of transcranial sonography (TCS) of patients with PD and those with PD with dementia (PDD). The correlation between the echogenicity of the SN and clinical symptoms in Chinese patients with PDD was also assessed. METHODS: The ratios of SN hyperechogenicity (SN+), maximum sizes of SN+, and widths of third ventricle (TV) were measured using TCS for all the recruited patients...
October 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28928674/the-gly-16-allele-of-the-g16r-single-nucleotide-polymorphism-in-the-%C3%AE-2-adrenergic-receptor-gene-augments-the-glycemic-response-to-adrenaline-in-humans
#20
Kim Z Rokamp, Jonatan M Staalsø, Morten Zaar, Peter Rasmussen, Lonnie G Petersen, Rikke V Nielsen, Niels H Secher, Niels V Olsen, Henning B Nielsen
Cerebral non-oxidative carbohydrate consumption may be driven by a β2-adrenergic mechanism. This study tested whether the 46G > A (G16R) single nucleotide polymorphism of the β2-adrenergic receptor gene (ADRB2) influences the metabolic and cerebrovascular responses to administration of adrenaline. Forty healthy Caucasian men were included from a group of genotyped individuals. Cardio- and cerebrovascular variables at baseline and during a 60-min adrenaline infusion (0.06 μg kg(-1) min(-1)) were measured by Model flow, near-infrared spectroscopy and transcranial Doppler sonography...
2017: Frontiers in Physiology
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