The role of angiography and embolization in the management of recurrent epistaxis.
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Angiography↗
Biomedical subjects
G J DeFilipp
Publications and source records attributed to G J DeFilipp.
Magnetic resonance imaging (MRI) in the evaluation of spinal cord injured children and adolescents.
In order to determine the indications and usefulness of MRI scanning in evaluating spinal cord trauma, MRIs on 43 subacute and chronic spinal cord injured children were compared with CT myelograms and other diagnostic tests. MRI scans were superior to CT myelograms in evaluating post-traumatic syrinx, disc pathology and the physiological status of the cord. CT myelogram remains an essential study before considering spinal cord decompression. The presence of internal fixation is not a contraindication to MRI scanning.
Adolescent↗
Transcallosal parafornicial approach for third ventricle tumors: neuropsychological consequences.
Five adult patients with 3rd ventricle tumors underwent a transcallosal intraventricular parafornicial approach. Pre- and postoperative cognitive reviews were conducted on all patients. Each review consisted of: a standardized neuropsychological battery, mental status reviews, specific tests for disconnection, and a personality variable, where possible. Computed tomography and magnetic resonance imaging are also presented. The three patients with colloid cysts and the two with oligodendrogliomas showed no significant postoperative cognitive deficits compared to the preoperative review. These additional subtle neuropsychometric measures, along with the methodological advantage of preoperative review, support a parafornicial approach where indicated to preserve cognitive abilities.
Adult↗
Magnetic resonance imaging of acoustic neuromas.
Ten patients with neurosensory hearing loss and computed tomographic (CT) evidence of acoustic neuromas were evaluated with magnetic resonance imaging (MRI). Tumors ranged in size from 0.8 to 3.7 cm. With the use of spin echo pulse sequences, all tumors were identified by MRI and appeared as masses with signal intensities greater than that of cerebrospinal fluid and equal to or greater than that of brain stem. Two patients who previously had undergone operation for acoustic neuromas were evaluated with MRI. In one patient with CT evidence of tumor recurrence, the lesion could not be identified by MRI. MRI holds promise of becoming a primary diagnostic modality for the evaluation of acoustic neuromas.
Encephalomalacia↗
Intravenous digital subtraction angiography in the investigation of intracranial disease.
Eighty-six patients who presented with a variety of intracranial lesions were examined with intravenous digital subtraction angiography (IV-DSA). A grading system was used to evaluate the ability of IV-DSA to answer specific diagnostic questions regarding intracranial tumors, vasospasm following subarachnoid hemorrhage, lesions of the sella, dural sinus occlusion, and post-therapeutic embolization. Eighty-four per cent of the examinations provided clinically useful information. In 15% of the cases limited but useful information was obtained; only 1% of the examinations provided no useful information. We conclude that IV-DSA can routinely provide useful information in the evaluation of the variety of intracranial lesions described above.
Angiography↗
Somatotype and idiopathic mitral valve prolapse.
Records from 18 subjects with angiographic idiopathic mitral valve prolapse, 28 subjects with merely exaggerated posterior mitral leaflet systolic bulging, and 100 subjects with normal hemodynamic and angiographic findings were compared with regard to age, sex, height, weight, ponderal index (height/3 square root weight), auscultatory and echocardiographic abnormalities. Chest x-ray films available for subjects with mitral valve prolapse were reviewed. The ponderal index of subjects with mitral valve prolapse (13.1 +/- 0.8) differed from that of subjects with merely exaggerated posterior mitral leaflet systolic bulging (12.6 +/- 0.7) (P less than 0.02) and from that of subjects without angiographic abnormality (12.3 +/- 0.8) (P less than 0.001). The three groups differed in ponderal index when equated statistically for age, height, weight, and sex (P less than 0.001). Among mitral valve prolapse patients, an asthenic habitus occurred independent of the presence of thoracic skeletal abnormalities.
Adolescent↗
Cerebral MR of Menkes kinky-hair disease.
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Adolescent↗
Cerebral distribution of contrast medium during slow intracarotid infusion.
A prospective study was performed to evaluate in vivo the uniformity of cerebral distribution of iodinated contrast medium during slow intraarterial injection at rates used for chemotherapy installation in the internal carotid artery. We evaluated seven patients with primary intracranial neoplasms with routine film-screen angiography and with digital angiography during slow infusion. In six internal carotid artery injections the distribution of contrast material was identical during the late arterial phase of routine angiography and the digital study. In three vertebral artery injections the opacification during the slow infusion was inadequate to make meaningful comparison. Our results indicate that solutions infused into the internal carotid artery at rates as low as 0.25 ml/sec are distributed well throughout the carotid territory opacified during the late arterial phase of film-screen angiography.
Angiography↗
Scleral inflammatory disease.
Scleral inflammatory disease, a relatively common disease of the eye, is demonstrable on CT. Because of its unilateral and sometimes focal involvement, it may be mistaken for more serious diseases, both clinically and by CT. In particular, the clinical difficulties in diagnosing posterior scleritis have led to enucleations when such entities as melanoma and metastasis were suspected. We report the CT appearance and differential diagnosis of scleritis and correlate them with its clinical manifestations, both within the eye and systemically. We found CT to be reliable in differentiating scleritis from true choroidal and retrobulbar masses.
Adolescent↗