- Full text PDF available (3)
The purpose of our study was to determine the main anatomical features of the M1 segment of middle cerebral artery (MRA) using a 3D TOF-MRA at 3 T. Reconstructed and post-processed MRA images were independently analysed by two anatomists in order to determine the course patterns, the division patterns and the early cortical branches patterns of the M1… (More)
During the first hours after acute ischemic stroke, the CT usually shows no abnormalities. Therapeutic trials of ischemia in the middle cerebral artery (MCA) territory involves decision-making when the CT may not show obvious ischemic changes. We reviewed 100 consecutive patients, admitted within 14 hours after a first stroke. Selective criteria were… (More)
The authors report the CT scan findings in a case of sellar spine. This osseous spine which arises in the midline of the anterior aspect of the dorsum sellae and is directed toward the center of the sella turcica has already been described on specimens and on plain films but never on CT scans. The CT scan findings confirm the normal appearance of the… (More)
The authors have studied by CT brain infarcts of different ages in 16 patients, two of whom were also examined by MRI. The early and CT signs of wallerian degeneration of the descending tracts within the brain stem are described. Three cases of crossed cerebellar atrophy are reported; in one of them, the cerebral lesion had been present for less than 8… (More)
We describe the MRA and MR angiography (MRA) features of persistent trigeminal artery (PTA) found incidentally in eight patients, with special attention to its origin, site and course. The different patterns of posterior communicating arteries were also noted. The PTA were shown on sagittal, coronal and axial MRI and on MRA. In four cases, the PTA arose… (More)
We evaluated the ability of dynamic CT scanning to accurately demonstrate the laterosellar extradural venous spaces. Careful examination of 680 consecutive patients with this technique has permitted us to describe four main venous groups: the veins of the lateral wall (present in 98% of cases), the vein of the inferolateral group located beneath cranial… (More)
From a series of 700 thin, axial, contrast-enhanced CT scans of the sellar region, the posterior lobe of the pituitary was studied. Empty sellae and pituitary lesions larger than 8 mm in diameter were excluded from the study. Of the 320 remaining axial contrast-enhanced CT scans, the posterior lobe of the pituitary was apparent in 124 (39%) as an oval… (More)
The authors report their 10 year experience on postsurgical MRI of the sphenoidal region. All patients underwent MRI examination 4 days after surgery, then between 2 and 3 months and one year or more after surgery. The reproducibility of pulse sequences is mandatory to make a diagnosis of recurrent adenoma as early as possible.
Cerebral alveolar echinococcosis is rare and has a poor prognosis. We report an unusual case presenting with disseminated intracranial lesions secondary to primary hepatic infection.