Cerebral air embolism occurring at angiography and diagnosed by computerized tomography

1984 ◽  
Vol 60 (1) ◽  
pp. 177-178 ◽  
Author(s):  
Rand M. Voorhies ◽  
Richard A. R. Fraser
Keyword(s):  
High Resolution ◽  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Air Embolism ◽  
Cerebral Air Embolism ◽  
Content Type ◽  
Fine Print

✓ A case of air embolism complicating cerebral angiography is presented. The presence of the embolism was confirmed with high-resolution computerized tomography scans using appropriate window settings.

Computerized tomography of cranial sutures

1984 ◽  
Vol 61 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Yoshimi Furuya ◽  
Michael S. B. Edwards ◽  
Charles E. Alpers ◽  
Brian M. Tress ◽  
Douglas K. Ousterhout ◽  
...  
Keyword(s):  
High Resolution ◽  
Computerized Tomography ◽  
Developmental Changes ◽  
Cranial Sutures ◽  
Skull Fractures ◽  
Anatomical Structures ◽  
Content Type ◽  
Print Knowledge ◽  
Tomography Scanning ◽  
Fine Print

✓ Knowledge of normal suture anatomy and development is vital in order to understand abnormal suture development and to be able to distinguish sutures radiographically from normal anatomical structures and possible skull fractures. The anatomy of the sutures and synchrondroses of 150 normal pediatric and adult patients was studied using high-resolution computerized tomography scanning. Sutures of both the calvaria and skull base were most accurately identified in axial and coronal high-resolution thin-section scans when bone window algorithms were used. Developmental changes of the sutures and synchodroses, the inner and outer tables, and the diploic space were all well delineated. Vault sutures could be identified routinely in children, but their presence in adults varied considerably. With increasing age, parasutural sclerosis developed and sutures were more closely apposed.

Cerebral angiitis and intracerebral hemorrhage associated with methamphetamine abuse

1983 ◽  
Vol 58 (1) ◽  
pp. 109-111 ◽  
Author(s):  
Young J. Yu ◽  
David R. Cooper ◽  
David E. Wellenstein ◽  
Brian Block
Keyword(s):  
Drug Abuse ◽  
Intracerebral Hemorrhage ◽  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Methamphetamine Abuse ◽  
Content Type ◽  
Vascular Abnormalities ◽  
Cerebral Angiitis ◽  
Radiographic Changes ◽  
Fine Print

✓ A case of reversible cerebral angiitis and intracerebral hemorrhage is reported in a methamphetamine abuser. Characteristic radiographic changes were demonstrated by selective cerebral angiography and computerized tomography. These vascular abnormalities disappeared after 1 month of treatment with prednisone, during which time the patient denied further drug abuse.

Computerized tomography angiography in isolated third nerve palsies

1998 ◽  
Vol 88 (4) ◽  
pp. 679-684 ◽  
Author(s):  
Robert M. McFadzean ◽  
Evelyn M. Teasdale
Keyword(s):  
Cerebral Aneurysm ◽  
Ct Angiography ◽  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Diagnostic Tool ◽  
Nerve Palsy ◽  
Content Type ◽  
Third Nerve Palsy ◽  
Third Nerve ◽  
Fine Print

Object. The goal of this study was to assess the value of computerized tomography (CT) angiography as a diagnostic tool in isolated oculomotor nerve palsies. Methods. One hundred consecutive patients who presented with an isolated third nerve palsy were examined by CT angiography. This procedure was followed by conventional cerebral angiography in most patients in whom a vascular abnormality was noted on the CT angiography. Thus, all patients whose symptoms were caused by a compressive aneurysm were identified. The remaining patients were observed clinically to exclude the possibility that a missed cerebral aneurysm caused the isolated third nerve palsy. Eighteen patients harbored a cerebral aneurysm responsible for causing the isolated third nerve palsy. Most of the remaining patients experienced some degree of spontaneous recovery. There was no clinical evidence to indicate that a case of compressive cerebral aneurysm causing the isolated third nerve palsy had been missed on CT angiography. Conclusions. Computerized tomography angiography is a reliable diagnostic tool for use in the assessment of patients with an isolated third nerve palsy; it can identify the minority of patients in whom conventional cerebral angiography may be required.

Study of the posterior circulation in moyamoya disease

1984 ◽  
Vol 61 (6) ◽  
pp. 1032-1037 ◽  
Author(s):  
Susumu Miyamoto ◽  
Haruhiko Kikuchi ◽  
Jun Karasawa ◽  
Izumi Nagata ◽  
Toshio Ikota ◽  
...  
Keyword(s):  
Computerized Tomography ◽  
Moyamoya Disease ◽  
Cerebral Angiography ◽  
Posterior Circulation ◽  
Vascular Network ◽  
Anterior Circulation ◽  
Content Type ◽  
Vertebrobasilar System ◽  
Fine Print

✓ Eighty-two cases of cerebrovascular moyamoya disease were studied by cerebral angiography and computerized tomography. Occlusive lesions were demonstrated not only in the anterior circulation but also in the posterior circulation, and they were associated with the development of an abnormal vascular network (moyamoya vessels). Although occlusive lesions do occur in the vertebrobasilar system, the vertebrobasilar system also acts as a source of collateral channels to the anterior circulation in this disease.

Supratentorial hemangioblastoma in a child

1980 ◽  
Vol 52 (4) ◽  
pp. 578-583 ◽  
Author(s):  
Francesco Tomasello ◽  
Vincenzo Albanese ◽  
Fausto Iannotti ◽  
Giuseppe Di Iorio
Keyword(s):  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Accurate Information ◽  
Microscopic Appearance ◽  
Content Type ◽  
Von Hippel Lindau ◽  
Von Hippel Lindau Syndrome ◽  
Fine Print

✓ Hemangioblastomas are rarely seen in the supratentorial region, especially in childhood. The case of a 10-year-old boy with left parieto-occipital cystic hemangioblastoma is reported. The neoplasm was not attached to the dura, nor was it associated with von Hippel-Lindau syndrome or with erythrocythemia. Cerebral angiography showed no evidence of a vascularized tumor, whereas computerized tomography gave more accurate information. The gross and microscopic appearance of the lesion is described, and a review of similar cases previously reported in the literature is presented.

Computerized tomography of a sellar spine

1982 ◽  
Vol 57 (3) ◽  
pp. 407-409 ◽  
Author(s):  
David L. LaMasters ◽  
James E. Boggan ◽  
Charles B. Wilson
Keyword(s):  
Pituitary Adenoma ◽  
High Resolution ◽  
Pituitary Gland ◽  
Ct Scan ◽  
Computerized Tomography ◽  
Radiographic Appearance ◽  
Content Type ◽  
High Resolution Ct ◽  
Developmental Variant ◽  
Fine Print

✓ A presumed developmental variant of the dorsum sellae was found in a patient undergoing evaluation for a suspected pituitary adenoma. An initial computerized tomography (CT) scan suggested a suprasellar mass; however, high-resolution CT with reformations clearly revealed the mass to be the pituitary gland, which was deformed and displaced upward by an osseous spine projecting from the dorsum sellae. The radiographic appearance and etiology of this anomaly are discussed. Neurosurgeons and neuroradiologists should be aware of this anomaly when evaluating a patient for pituitary adenoma.

Acute renal failure following cerebral angiography and infusion computerized tomography

1980 ◽  
Vol 52 (1) ◽  
pp. 111-112 ◽  
Author(s):  
Joe S. Robinson ◽  
Daniel D. Arzola ◽  
Robert A. Moody
Keyword(s):  
Renal Failure ◽  
Acute Renal Failure ◽  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Contrast Material ◽  
Content Type ◽  
Fine Print

✓ The authors report a case in which acute renal failure developed following angiography and computerized tomography with infusion of contrast material performed within the same day.

Intermittent exophthalmos studied with computerized tomography

1982 ◽  
Vol 57 (2) ◽  
pp. 290-295 ◽  
Author(s):  
Juan J. Rivas ◽  
Ramiro D. Lobato ◽  
Francisco Cordobés ◽  
Alejandro Barcena ◽  
José M. Millán
Keyword(s):  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Clinical Manifestations ◽  
The Other ◽  
Content Type ◽  
Orbital Varix ◽  
Fine Print

✓ Two cases of intermittent exophthalmos are reported. In both instances, cerebral angiography and orbital venography failed to outline the lesion, which was clearly demonstrated with the aid of computerized tomography. An orbital varix was seen to be the cause of proptosis in one surgically verified case, whereas in the other this same diagnosis was suspected on the basis of the clinicoradiological findings. The etiology, clinical manifestations, and management of orbital varix are briefly discussed.

Cortical blindness after cerebral angiography

1981 ◽  
Vol 54 (2) ◽  
pp. 240-244 ◽  
Author(s):  
William E. Studdard ◽  
David O. Davis ◽  
Stephen W. Young
Keyword(s):  
Renal Function ◽  
Contrast Medium ◽  
Computerized Tomography ◽  
Cerebral Angiography ◽  
Contrast Material ◽  
Cortical Blindness ◽  
Content Type ◽  
Visual Areas ◽  
The Brain ◽  
Fine Print

✓ A case of cortical blindness after cerebral angiography is presented. Serial computerized tomography scans of the brain revealed persistence of contrast medium in occipital visual areas as well as areas that may have been associated with “focal seizures” that occurred after angiography. This case supports the concept that cortical blindness may be secondary to the direct effect of contrast medium on the brain. The persistence of contrast material was in part due to decreased renal function.

Protective effect of lidocaine in acute cerebral ischemia induced by air embolism

1984 ◽  
Vol 60 (2) ◽  
pp. 257-263 ◽  
Author(s):  
Delbert E. Evans ◽  
Arthur I. Kobrine ◽  
David C. LeGrys ◽  
Mark E. Bradley
Keyword(s):  
Cerebral Ischemia ◽  
Air Embolism ◽  
Neural Function ◽  
Intravenous Lidocaine ◽  
Acute Hypertension ◽  
Cerebral Air Embolism ◽  
Content Type ◽  
Neural Damage ◽  
Acute Cerebral Ischemia ◽  
Fine Print

✓ To investigate possible approaches to the prevention and treatment of neural damage induced by air embolism and other forms of acute cerebral ischemia, a model was used in which cerebral air embolism was produced by infusion of air (0.4 ml) into a vertebral artery of chloralose-anesthetized cats. Neurological function was assessed by measuring cortical somatosensory evoked responses in a group of 10 untreated animals and in a group of eight animals pretreated with intravenous lidocaine (5 mg/kg). In the untreated group, the primary somatosensory amplitude was reduced to 28% ± 9% (mean ± standard error) of the value before air embolism, with a return to 60% ± 8% 1 hour and 73% ± 12% 2 hours after embolism. In the group pretreated with lidocaine, the primary somatosensory amplitude was reduced to 68% ± 9% of the value before air embolism, with a return to 92% ± 3% 1 hour and 97 ± 2% 2 hours after embolism. Pretreatment with lidocaine also greatly attenuated the acute hypertension and the increase in intracranial pressure following air embolism. These results demonstrate that pretreatment with intravenous lidocaine significantly reduces the neural decrement and increases the recovery of neural function after acute cerebral ischemia induced by air embolism.

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