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.

Preliminary experience with Brown-Roberts-Wells (BRW) computerized tomography stereotaxic guidance system

1983 ◽  
Vol 59 (2) ◽  
pp. 217-222 ◽  
Author(s):  
M. Peter Heilbrun ◽  
Theodore S. Roberts ◽  
Michael L. J. Apuzzo ◽  
Trent H. Wells ◽  
James K. Sabshin
Keyword(s):  
Ct Scan ◽  
Computerized Tomography ◽  
Guidance System ◽  
Production Model ◽  
Ct Scanner ◽  
Content Type ◽  
Ct Scanners ◽  
Guidance Systems ◽  
Fine Print

✓ The production model of the Brown-Roberts-Wells (BRW) computerized tomography (CT) stereotaxic guidance system is described. Hardware and software modifications to the original prototype now allow the system to be used independently of the CT scanner after an initial scan with the localizing components fixed to the skull. The system is simple and efficient, can be used universally with all CT scanners, and includes a phantom simulator system for target verification. Preliminary experience with 74 patients at two institutions is described. It is concluded that CT stereotaxic guidance systems will become important tools in the neurosurgical armamentarium, as they allow accurate approach to any target identifiable on the CT scan.

CT infusion scanning for the detection of cerebral aneurysms

1989 ◽  
Vol 71 (2) ◽  
pp. 175-179 ◽  
Author(s):  
David W. Newell ◽  
Peter D. LeRoux ◽  
Ralph G. Dacey ◽  
Gary K. Stimac ◽  
H. Richard Winn
Keyword(s):  
Intracerebral Hemorrhage ◽  
Ct Scan ◽  
Computerized Tomography ◽  
Cerebral Aneurysms ◽  
Spontaneous Intracerebral Hemorrhage ◽  
Content Type ◽  
Spontaneous Hemorrhage ◽  
Fine Print

✓ Computerized tomography (CT) infusion scanning can confirm the presence or absence of an aneurysm as a cause of spontaneous intracerebral hemorrhage. Eight patients who presented with spontaneous hemorrhage were examined using this technique. In five patients the CT scan showed an aneurysm which was later confirmed by angiography or surgery; angiography confirmed the absence of an aneurysm in the remaining three patients. This method is an easy effective way to detect whether an aneurysm is the cause of spontaneous intracerebral hemorrhage.

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.

Localization of brain tumors with a simple scalp-mounted fiducial device

1989 ◽  
Vol 70 (2) ◽  
pp. 280-281 ◽  
Author(s):  
Henry Hirschberg
Keyword(s):  
Brain Tumors ◽  
Ct Scan ◽  
Computerized Tomography ◽  
Ct Images ◽  
Ct Scans ◽  
Content Type ◽  
Varying Length ◽  
Fine Print

✓ A method is described for marking the site of a tumor on the scalp based on information from computerized tomography (CT) scans. The technique employs a syrinx-shaped array of radiopaque catheters of varying length taped to the patient's scalp for visualization on the CT scan. Fiducial markings on the CT images allow the transfer of the tumor's location directly onto the scalp. The device can be placed anywhere on the scalp, including in a parasagittal position.

Tuberculous brain abscess and its appearance on computerized tomography

1982 ◽  
Vol 56 (4) ◽  
pp. 597-600 ◽  
Author(s):  
Eli Reichenthal ◽  
Mathias L. Cohen ◽  
Elias Schujman ◽  
Nachman Eynan ◽  
Mordechai Shalit
Keyword(s):  
Ct Scan ◽  
Brain Abscess ◽  
Computerized Tomography ◽  
Clinical History ◽  
Content Type ◽  
Parietal Area ◽  
Tuberculous Brain Abscess ◽  
The Right ◽  
Space Occupying Lesion ◽  
Fine Print

✓ A case of tuberculous brain abscess in a 52-year-old woman is presented. The computerized tomographic (CT) scan demonstrated a multilocular space-occupying lesion in the right parietal area, surrounded by a thick hyperdense enhancing rim. It is suggested that a relatively long clinical history together with the appearance of a thick-walled abscess-like lesion on the CT scan may indicate the diagnosis of a tuberculous brain abscess.

Follow-up study with computerized tomography and clinical evaluation 5 to 10 years after surgery for pituitary adenoma

1980 ◽  
Vol 53 (2) ◽  
pp. 144-148 ◽  
Author(s):  
Carin Muhr ◽  
Kjell Bergstrom ◽  
Paul Enoksson ◽  
Rune Hugosson ◽  
Per Olov Lundberg
Keyword(s):  
Pituitary Adenoma ◽  
Computerized Tomography ◽  
No Value ◽  
Content Type ◽  
Follow Up Study ◽  
Field Defect ◽  
Very High ◽  
Suprasellar Extension ◽  
Fine Print

✓ This study was based on 24 consecutive patients operated on for pituitary adenoma with suprasellar extension, and treated postoperatively with radiotherapy. The follow-up period was 5 to 10 years. A clinical examination, endocrine evaluation, perimetry, computerized tomography (CT) and sellar roentgenography were performed in 19 of 20 surviving patients. The CT scans revealed four recurrences, while perimetry only showed an increased visual field defect in one patient. Plain sellar films were of no value for diagnosis of recurrence. Prolactin determinations seemed to have a limited value in recurrence diagnosis, but very high levels spoke in favor of a recurrence. Thus, CT was found to be the superior method of diagnosing recurrences. It is proposed that CT be used regularly in the follow-up study of patients operated on for a pituitary adenoma.

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.

Localization of vertex lesions seen on CT scan

1978 ◽  
Vol 49 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Daniel H. O'Leary ◽  
Michael H. Lavyne
Keyword(s):  
Ct Scan ◽  
Computerized Tomography ◽  
Anatomical Site ◽  
Simple Method ◽  
Content Type ◽  
Brain Scan ◽  
Ct Brain ◽  
Fine Print

✓ A simple method is presented for localizing the anatomical site of vertex lesions seen on a computerized tomography (CT) brain scan, using the patient's plain lateral skull film.

The syndrome of normal-pressure hydrocephalus

1984 ◽  
Vol 61 (3) ◽  
pp. 501-509 ◽  
Author(s):  
John Vassilouthis
Keyword(s):  
Ct Scan ◽  
Computerized Tomography ◽  
Normal Pressure Hydrocephalus ◽  
Ventriculoperitoneal Shunt ◽  
Normal Pressure ◽  
Content Type ◽  
Postoperative Death ◽  
Shunting System ◽  
Fine Print

✓ A series of 40 patients with the syndrome of normal-pressure hydrocephalus is presented. Diagnosis was based on clinical and computerized tomography (CT) scan criteria and was followed by the insertion of a ventriculoperitoneal shunt in every instance. All patients responded favorably to treatment (four of them had a fair outcome), and this response was maintained. There was one postoperative death, but no other serious complications. This study demonstrates that it is possible to diagnose the syndrome of normal-pressure hydrocephalus on the basis of clinical and CT scan criteria without any other invasive investigations. Such patients should respond favorably to an adequately functioning shunting system.

Intrasellar gangliocytoma and syndromes of pituitary hypersecretion

1983 ◽  
Vol 59 (6) ◽  
pp. 1071-1075 ◽  
Author(s):  
Edwin G. Fischer ◽  
James H. Morris ◽  
William M. Kettyle
Keyword(s):  
Pituitary Adenoma ◽  
Pituitary Gland ◽  
Pituitary Function ◽  
Pituitary Hormone ◽  
Content Type ◽  
Rare Tumors ◽  
Successful Removal ◽  
Fine Print

✓ Syndromes of hypersecretion of pituitary hormone and sellar enlargement may on occasion be caused by a gangliocytoma instead of a pituitary adenoma. At least some of these rare tumors are apparently independent of and separable from the pituitary gland, its stalk, and the hypothalamus, and are therefore surgically removable without incurring further endocrine deficit. The authors report such a case, with successful removal of the tumor via a frontal craniotomy. The associated hypersecretion of pituitary hormone was corrected without disturbing normal pituitary function.

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