scholarly journals TRANSCRANIAL DOPPLER PADA SEREBRAL ARTERIOVENOUS MALFORMATION LAPORAN KASUS

2017 ◽  
Vol 2 (1) ◽  
pp. 307
Author(s):  
Esdras Ardi Pramudita
Keyword(s):  
Arteriovenous Malformation ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Transcranial Doppler ◽  
Pulsatility Index ◽  
Anterior Cerebral Artery ◽  
Left Middle Cerebral Artery ◽  
Mean Flow ◽  
Left Middle ◽  
Mean Flow Velocity

Serebral Arteriovenous Malformation (AVM) merupakan suatu kelainan pada formasi pembuluh darah di otak. Keadaan dinding pembuluh darah yang terbentuk pada AVM tidak sebaik dengan pembuluh darah normal sehingga mudah pecah dan menimbulkan masalah intraserebral. TCD merupakan suatu pemeriksaan berbasis ultrasound yang bersifat non invasif, murah dan real time dalam memeriksa kondisi hemodinamik intraserebral dan TCD dapat digunakan untuk menentukan feeder artery pada serebral AVM. Melaporkan dua kasus Serebral AVM selama bulan Juli-September 2016 di RS Panti Rapih Yogyakarta dari kedua kasus didapatkan peningkatan Mean Flow Velocity (MFV) dan penurunan Pulsatility Index (PI) <0,5 pada Right Anterior Cerebral Artery (R-ACA) dari kasus pertama dan Left Middle Cerebral Artery (L-MCA) dari kasus kedua yang menunjukkan bahwa arteri-arteri ini sebagai feeder artery

scholarly journals Transcranial doppler in sickle cell anaemia: evaluation of brain blood flow parameters in children of Aracaju, Northeast - Brazil

2008 ◽  
Vol 66 (2b) ◽  
pp. 360-364 ◽  
Author(s):  
Hyder Aragão de Melo ◽  
José Augusto S. Barreto-Filho ◽  
Roberto César P. do Prado ◽  
Rosana Cipolotti
Keyword(s):  
Middle Cerebral Artery ◽  
Sickle Cell ◽  
Cerebral Artery ◽  
Sickle Cell Anaemia ◽  
Anterior Cerebral Artery ◽  
International Standards ◽  
Left Middle Cerebral Artery ◽  
Mean Velocity ◽  
Cross Sectional ◽  
Left Middle

BACKGROUND: Environmental factors interfere on sickle cell anaemia (SCA). Transcanial Doppler (TCD) is important to evaluate cerebrovascular disease. OBJECTIVE: To evaluate brain haemodynamic profile of children with SCA in Sergipe. METHODS: Cross sectional study (group1: SCA patients aged 3-18; group2: age and sex matched healthy individuals). Baseline brain flow was evaluated. RESULTS: Group1=34 patients; group 2=81 controls. SCA patients had mean velocity (MV)=125.69 cm/s±23.40; pulsatility index (PI)=0.66±0.10; middle cerebral artery ratio (MCAr)=14.53±15.23; right anterior cerebral artery/right middle cerebral artery=0.77±0.20; left anterior cerebral artery/left middle cerebral artery=0.78±0.20. Controls had MV=79.44±15.54; PI=0.82±0.11; MCAr=13.19±13.77; right anterior cerebral artery/right middle cerebral artery=0.80±0.16; left anterior cerebral artery/left middle cerebral artery=0.84±0.18. MV and PI differences were statistically significant between groups. MV was related to age but not to gender. CONCLUSION: MV evaluation using TCD was similar to international standards and possible to be used in our setting.

Middle cerebral artery flow velocity increases more in patients with delayed intraparenchymal hemorrhage after Pipeline

2017 ◽  
Vol 10 (3) ◽  
pp. 249-251 ◽  
Author(s):  
Denise Brunozzi ◽  
Sophia F Shakur ◽  
Ahmed E Hussein ◽  
Fady T Charbel ◽  
Ali Alaraj
Keyword(s):  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Pulsatility Index ◽  
Cerebral Aneurysms ◽  
Mean Flow ◽  
Intraparenchymal Hemorrhage ◽  
Velocity Changes ◽  
Mean Flow Velocity ◽  
Flow Velocities

ObjectivePipeline Embolization Devices (PED) are commonly used for endovascular treatment of cerebral aneurysms but can be associated with delayed ipsilateral intraparenchymal hemorrhage (DIPH). The role that altered intracranial hemodynamics may play in the pathophysiology of DIPH is poorly understood. We assess middle cerebral artery (MCA) flow velocity changes after PED deployment.Materials and methodsPatients with aneurysms located proximal to the internal carotid artery terminus treated with PED at our institution between 2015 and 2016 were retrospectively reviewed. Patients were included if MCA flow velocities were measured using transcranial Doppler. Bilateral MCA flow velocities, ratio of ipsilateral to contralateral MCA flow velocity, and bilateral MCA pulsatility index before and after PED deployment were assessed.Results10 patients of mean age 52 years were included. Two patients had DIPH within 48 hours after PED deployment. We observed that these two patients had a higher increase in ipsilateral MCA mean flow velocity after treatment compared with patients without DIPH (39.5% vs 5.5%). Additionally, before PED deployment, patients with DIPH had a higher ipsilateral MCA pulsatility index (1.55 vs 0.98) and a higher ratio of ipsilateral to contralateral MCA mean flow velocity (1.35 vs 1.04).ConclusionsAfter PED, ipsilateral MCA mean flow velocity increases more in patients with DIPH. These flow velocity changes suggest the possible role of altered distal intracranial hemodynamics in DIPH after PED treatment of cerebral aneurysms. Further data are required to confirm this observation.

Transcranial Doppler Ultrasound Pre- and Post Middle Cerebral Artery Stent Placement

2021 ◽  
pp. 154431672110335
Author(s):  
Vanessa T. Tran ◽  
Anne Moore ◽  
Laligam Sekhar
Keyword(s):  
Middle Cerebral Artery ◽  
Doppler Ultrasound ◽  
Cerebral Artery ◽  
Stent Placement ◽  
Transcranial Doppler ◽  
Transcranial Doppler Ultrasound ◽  
Doppler Imaging ◽  
Left Middle Cerebral Artery ◽  
Mean Flow ◽  
Cerebral Angiogram

This report describes a 42-year-old male with a 5-year history of transient ischemic attacks (TIAs), migraines, previous strokes, and symptoms referable to a left middle cerebral artery (MCA) territory event. Computed tomography angiography (CTA) and magnetic resonance angiography (MRA) revealed severe stenoses in the proximal left MCA and proximal left anterior cerebral artery (ACA). Transcranial Doppler ultrasound/Transcranial Doppler imaging (TCD/TCI) and cerebral angiogram confirmed the stenoses with a mean flow velocity (MFV) at the proximal left MCA, with a velocity of 230 cm/s. A Wingspan Stent System stent was placed in the proximal left MCA. Cerebral angiogram and serial TCD examinations performed post stent placement showed a patent left MCA without stenosis and a MFV of 55 cm/s. The left ACA was occluded following proximal left MCA stent placement. This case highlights the usefulness of TCD in the assessment of the MCA and other basal cerebral arteries.

scholarly journals Post-stroke cognitive impairment on the Mini-Mental State Examination primarily relates to left middle cerebral artery infarcts

2021 ◽  
pp. 174749302098455
Author(s):  
Nick A Weaver ◽  
Angelina K Kancheva ◽  
Jae-Sung Lim ◽  
J Matthijs Biesbroek ◽  
Irene MC Huenges Wajer ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Cognitive Deficits ◽  
Mini Mental State Examination ◽  
Left Middle Cerebral Artery ◽  
Post Stroke ◽  
Lesion Symptom Mapping ◽  
State Examination ◽  
Left Middle

Background Post-stroke cognitive impairment can occur after damage to various brain regions, and cognitive deficits depend on infarct location. The Mini-Mental State Examination (MMSE) is still widely used to assess post-stroke cognition, but it has been criticized for capturing only certain cognitive deficits. Along these lines, it might be hypothesized that cognitive deficits as measured with the MMSE primarily involve certain infarct locations. Aims This comprehensive lesion-symptom mapping study aimed to determine which acute infarct locations are associated with post-stroke cognitive impairment on the MMSE. Methods We examined associations between impairment on the MMSE (<5th percentile; normative data) and infarct location in 1198 patients (age 67 ± 12 years, 43% female) with acute ischemic stroke using voxel-based lesion-symptom mapping. As a frame of reference, infarct patterns associated with impairments in individual cognitive domains were determined, based on a more detailed neuropsychological assessment. Results Impairment on the MMSE was present in 420 patients (35%). Large voxel clusters in the left middle cerebral artery territory and thalamus were significantly (p < 0.01) associated with cognitive impairment on the MMSE, with highest odds ratios (>15) in the thalamus and superior temporal gyrus. In comparison, domain-specific impairments were related to various infarct patterns across both hemispheres including the left medial temporal lobe (verbal memory) and right parietal lobe (visuospatial functioning). Conclusions Our findings indicate that post-stroke cognitive impairment on the MMSE primarily relates to infarct locations in the left middle cerebral artery territory. The MMSE is apparently less sensitive to cognitive deficits that specifically relate to other locations.

Multiple middle cerebral artery aneurysms in an infant

1990 ◽  
Vol 72 (5) ◽  
pp. 806-809 ◽  
Author(s):  
Cornelia Cedzich ◽  
J. Schramm ◽  
G. Röckelein
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Systemic Disease ◽  
Intracerebral Hematoma ◽  
Left Middle Cerebral Artery ◽  
Content Type ◽  
Middle Cerebral Artery Aneurysms ◽  
Subarachnoid Blood ◽  
Left Middle ◽  
Control Angiography

✓ An 11-month-old boy was admitted for evaluation of drowsiness, vomiting, and convulsions. Computerized tomography showed subarachnoid blood in the left sylvian fissure and a small intracerebral hematoma in the temporal lobe. Angiography revealed several aneurysms of the left middle cerebral artery (MCA). During surgery, 13 aneurysms were found arising from one main branch of the left MCA, and this segment of the MCA was trapped. Somatosensory evoked potentials did not show any change during surgery. The diseased arterial segment was examined histologically and the pathogenetic aspects of the case are discussed. Control angiography 6 months later excluded systemic disease or other aneurysms. The rarity of such lesions in childhood and their successful surgical treatment are discussed briefly.

Delayed breaking of a Heifetz aneurysm clip

1977 ◽  
Vol 47 (3) ◽  
pp. 463-465 ◽  
Author(s):  
Antti Servo ◽  
Matti Puranen
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Left Middle Cerebral Artery ◽  
Carotid Angiography ◽  
Content Type ◽  
Aneurysm Clip ◽  
Correct Placement ◽  
Left Middle ◽  
Fine Print

✓ An aneurysm of the left middle cerebral artery was treated by clipping with a Heifetz clip. The correct placement was confirmed angiographically immediately after the operation. At carotid angiography 1 year later the clip was found to have broken, and the aneurysm had increased in size.

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