The diencephalon is in the left and right cerebral hemisphere
, the cavity in the middle cerebral hemisphere
is the third ventricle (Fig.
(ii) A second set of VOIs was automatically generated in the cortex and the striatum by using the regions proposed by the PMOD rat brain template, to study the evolution of [[sup.18]F]FDG PET signal in these specific regions in both the ipsilateral and contralateral cerebral hemispheres
. PET signal uptake was averaged in each ROI and expressed as percentage of injected dose per cubic centimetre (%ID/cc), and the hemispheres ratios were considered.
Collateral circulation to the ipsilateral cerebral hemisphere
may be provided by flow through the circle of Willis, persistent fetal vessels, or collaterals from the external carotid artery.
It is noteworthy that 2400-pulse cTBS may also have an inhibitory effect, and therefore further studies should be performed to determine the effects of 2400-pulse cTBS on the cerebral hemisphere
. In another study, cTBS was applied 4 times per day using a 15-min interval between the first and the second sessions, 60 min between the second and third, and a 75-min interval between the third and fourth.
A Tc-99m ECD SPECT/CT performed on this patient revealed evidence of hypoperfusion involving the superior, medial, and inferior frontal cortices of the right cerebral hemisphere
. There was also hypoperfusion involving the right basal ganglia.
A computed tomography (CT) scan of the head revealed atrophy of the left cerebral hemisphere
with dilatation of the ipsilateral ventricle and widening of the sulci and Sylvian fissure of the left side.
The electroencephalogram showed generalized low voltage with polyspikes on left cerebral hemisphere
. In hyperventilation, synchronous poly-spikes in both hemispheres could be observed.
On the 11th postoperative day, the cerebral CT was repeated and showed the extended left tempo--parietal craniotomy, the inhomogeneous hypodense mass with edema and intra-axial dilacerations at the level of the left cerebral hemisphere
with a protrusion through the craniotomy orifice.
Spatial attention skills are centered in the right cerebral hemisphere
, a region that also controls tasks involving the senses of hearing and touch.
Broca observed that the loss of articulate speech in most of his right-handed patients was caused by a lesion on the left cerebral hemisphere
We ordered an MRI of the brain to look at things a bit more closely, which revealed inflammation of the coatings of his right cerebral hemisphere
and that explained the left-sided weakness.
The frontal lobes are an area in the brain of mammals located at the front of each cerebral hemisphere
and are thought to be critical for advanced intelligence.