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Biomedical subjects

G Scotti

Publications and source records attributed to G Scotti.

At least 127 records · Page 7Linked to original sources
PubMed1980

The isolated fourth ventricle in children: CT and clinical review of 16 cases.

Isolated fourth ventricles were diagnosed by computed tomography (CT) in 16 children in a 3 year period. They all had had shunting of the lateral ventricles for hydrocephalus, and all needed subsequent shunt revisions. Seven patients without signs of raised intracranial pressure clinically had new posterior fossa signs at different intervals after lateral ventricular shunting. The clinical findings in the other nine patients were much less specific and in some cases the isolated fourth ventricle was an incidental finding. CT is essential for the diagnosis. The isolated fourth ventricle needs to be differentiated from posterior fossa cysts and cystic tumors. Shunting of the fourth ventricle improved the clinical condition in six of 14 children.

Brain Diseases↗
PubMed1979

Further suggestions for cerebral CT-localization.

A method of obtaining lateral diagrams of brain lesions or structures from CT-scan pictures has been described and tested for accuracy with satisfactory results. Possible sources of error are discussed.

Brain Diseases↗
PubMed1979

CT evaluation in patients with transient ischemic attack. Correlation between clinical and angiographic findings.

35 patients clinically diagnosed with transient ischemic attack (TIA) and 15 patients clinically diagnosed with reversible ischemic neurological deficits (RIND) were examined by computerized tomography (CT). 34% of TIA patients showed positive CT scans consisting of small hypodenase areas: 60% of RIND patients had larger lesions. In 20% of the overall group the only pathological finding consisted of unilateral focal atophy or ventricular asymmetry. Correlation between angiographically demonstrated atherosclerotic lesions and positive CT was high. On the contrary, no correlation was found between either the risk factors or the natural history of ischemic attack and positive CT findings.

Adult↗
PubMed1978

Hypoglossal paralysis due to compression by a tortuous internal carotid artery in the neck.

Severe hemiatrophy of the right half of the tongue in a 22 year old patient was demonstrated to be due to compression of the hypoglossal nerve by a tortuous internal carotid artery in the neck. The nerve was trapped between an abnormal loop of the internal carotid artery and the sternocleidomastoid branch of the occipital artery. Although impairment of cranial nerve function with cases of tortuous and dilated vessels has been reported frequently, twelfth nerve palsy has never been demonstrated before.

Adult↗
PubMed1978

[Clinical radiographic features of basilar impression (author's transl)].

After a review of the literature and an analysis of the clinical and radiographic features of basilar impression (b.i.) the authors describe 27 personal cases. In 6 b.i. was present in its pure form and in 21 it was associated with other anomalies at the cranio-vertebral junction. Because of the frequent misdiagnosis with multiple sclerosis or other chronic neurologic diseases and because of the possible improvement of symptoms following decompressive occipital craniectomy and cervical laminectomy, the importance of a correct and complete radiographic study of the cranio-vertebral junction in these cases is stressed.

Adult↗
PubMed1977

Computed tomography in intracranial arteriovenous malformations.

22 patients with proved intracranial arteriovenous malformations (AVM) were studied by computed tomography (CT). Of these, 18 were also studied by CT after intravenous injection of contrast material. The plain scan was normal in 23% of cases. A combination of plain and contrast-enhancement CT proved to be superior to other screening techniques in patients with a possible intracranial AVM.

Humans↗
PubMed1977

Computed tomography in the evaluation of intracranial aneurysms and subarachnoid hemorrhage.

Computed tomography (CT) is a reliable technique for examining patients with subarachnoid hemorrhage and intracranial aneurysms. Extravasated blood is easily recognized and the location of the ruptured aneurysm may frequently be predicted by its distribution into the subarachnoid spaces and brain parenchyma. CT alleviates the need for repeat angiography while following the patient's clinical evolution since it clearly shows rebleed, edema follwoing vasospasm, and hydrocephalus.

Female↗
PubMed1977

Computerized tomography as a possible aid to histological grading of supratentorial gliomas.

Computerized tomography (CT) is known to be very helpful in demostrating the presence and extent of supratentorial gliomas, practically in combination with intravenous injection of contrast material. Certain specific density patterns were found to exist and enabled us to differentiate with confidence the low-grade gliomas from the glioblastomas. Overlapping did occur, however, as was to be expected, since histological proof was sometimes obtained by the needle biopsy with its inherent doubt as to true tumor representation. Future CT techniques such as sequential scanning after intravenous injection of contrast material may further increase the usefulness of CT scans in the diagnosis and therapeutic approach to the patient with a suspected glioma.

Brain↗
PubMed1977

Evaluation of the age of subdural hematomas by computerized tomography.

The computerized tomography (CT) scans of 50 patients with surgically proven subdural hematomas were subdivided into three groups on the basis of the attenuation coefficients of the subdural fluid collections: 28% were more dense, 24% isodense, and 48% less dense than the surrounding brain. The 42 patients with the available data were then subdivided into three groups; acute, subacute, and chronic, according to the time interval between trauma or duration of symptoms and date of CT scanning. Subdural hematomas were found to be hyperdense in 100% of acute patients, isodense in 70% of the subacute group, and hypodense in 76% of the chronic group.

Acute Disease↗
PubMed1975

Anterior inferior cerebellar artery originating from the cavernous portion of the internal carotid artery.

An anomalous branch of the cavernous carotid artery, not reported previously, is described. Its appearance and distribution were unlike those of any known cavernous branch, originating at the level where the trigeminal artery is usually found but having no communication with the basilar artery. Its distribution approximated that of the anterior inferior cerebellar artery. The author believes that this is an unusual form of persistent embryonic communication between the carotid artery and the vessels of the posterior fossa.

Angiography↗
PubMed1975

Intimal and medial calcifications of the carotid siphon and cerebrovascular disease.

Skull films of 5,570 patients older than 40 years of age admitted to the neurological (4,308), ophthalmologic (1,151), and otorhinolaryngologic clinics (111) of the University of Milan over a period of 20 years were reviewed for carotid siphon calcification. The 485 positive findings were divided into intimal and medial calcifications on the basis of morphological criteria. Signs of cerebrovascular disease in the territory of the internal carotid artery were seen in 35.1% of the intimal group and 37.2% of the medial group. These findings suggest that the two types of calcification do not have different prognostic values as theorized previously.

Adult↗