Encephalometry on the medial face of the human brain hemisphere: a necropsy study

Ribeiro, Paula J.; Cricenti, Serafim Vicenzo; Lancellotti, Carmen Lúcia Penteado

doi:10.1590/s0004-282x2005000300013

Cited by 5 publications

(2 citation statements)

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“…The 3 rings cover an axial field of view (FOV) of 15,2 cm. Coincidences of gamma rays between one PET detector module and any of the 9 opposite modules produces a transaxial FOV of about 24 cm, which ensures full coverage of the human brain [12].…”

Section: Methodsmentioning

confidence: 99%

The MINDVIEW project: First results

et al. 2018

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We present the first results of the MINDVIEW project. An innovative imaging system for the human brain examination, allowing simultaneous acquisition of PET/MRI images, has been designed and constructed. It consists of a high sensitivity and high resolution PET scanner integrated in a novel, head-dedicated, radio frequency coil for a 3T MRI scanner. Preliminary measurements from the PET scanner show sensitivity 3 times higher than state-of-the-art PET systems that will allow safe repeated studies on the same patient. The achieved spatial resolution, close to 1 mm, will enable differentiation of relevant brain structures for schizophrenia. A cost-effective and simple method of radiopharmaceutical production from C-carbon monoxide and a mini-clean room has been demonstrated. It has been shown thatC-raclopride has higher binding potential in a new VAAT null mutant mouse model of schizophrenia compared to wild type control animals. A significant reduction in TSPO binding has been found in gray matter in a small sample of drug-naïve, first episode psychosis patients, suggesting a reduced number or an altered function of immune cells in brain at early stage schizophrenia.

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Section: Methodsmentioning

confidence: 99%

The MINDVIEW project: First results

et al. 2018

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“…Em estudos realizados em humanos, Ribeiro et al 16 realizaram morfometria em 81 hemisférios cerebrais comparando os dois sexos e concluíram que os homens apresentaram maior comprimento e maior peso encefálico, diferente dos resultados obtidos na presente investigação em que ocorreu o contrário, sendo as fêmeas com maiores valores de largura dos hemisférios e comprimento do cerebelo em relação aos machos.…”

Section: Discussionunclassified

Morfometria do encéfalo e formação do circuito arterial em equinos mestiços

et al. 2014

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RESUMOO objetivo desta investigação foi caracterizar a morfometria do encéfalo e a formação do circuito arterial em equinos adultos mestiços de ambos os sexos. A fixação foi feita através de cânula plástica introduzida na artéria carótida comum com solução de formaldeído a 10%. Em seguida, foram feitas repleções vasculares com solução aquosa de Petrolátex S65 corado com pigmento Suvinil vermelho. Procedeu-se a craniotomia, remoção e morfometria dos encéfalos e dissecção para a observação das ramificações principais da artéria basilar e formação do circuito arterial. A média mais erro padrão da média do comprimento da artéria basilar foi de 3,629 cm ± 0,1550 nos machos e 4,423 cm ± 0,1990 nas fêmeas (p=0,0037). Em todos os equinos dissecados, a artéria basilar originouse da convergência das artérias vertebrais, emitindo a artéria cerebelar caudal, ramos variados para bulbo e ponte, ramos terminais e artérias cerebelares rostrais. As artérias da base do encéfalo estiveram na dependência dos sistemas carótico e vértebrobasilar. O circuito arterial do cérebro apresentou-se fechado rostral e caudalmente em 100% dos animais dissecados. PALAVRAS-CHAVE: cérebro, circuito arterial, equino MORPHOMETRY OF THE BRAIN AND ARTERIAL CIRCUIT FORMATION IN CROSSBREAD HORSE ABSTRACTThe aim of this study was to describe the main branches of the basilar artery, formation of the arterial circuit and the morphometry of the brain in adult crossbreed horses of both sexes. The setting was made by plastic tube inserted into the common carotid artery with 10% formaldehyde solution. After fixed, latex solution stained with pigment was injected. Craniotomy, morphometry of the brain and dissection were made to identify the main branches of the basilar arteries and the formation of the arterial circuit. The mean and standard error of the mean of the basilar artery was 3.629 cm ± 0.1550 in males and 4.423 cm ± 0.1990 in females (p=0.0037). In all animals the basilar artery originated from the fusion of the vertebral arteries giving rise to caudal cerebellar arteries, different numbers of branches to bulbus and pons, terminal branches and rostral cerebellar arteries. The arteries of the base of the brain depended on the carotid and vertebral-basilar systems. The brain circuit was closed rostrally and caudally in all horses.

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