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Biomedical subjects

E F Binet

Publications and source records attributed to E F Binet.

At least 19 recordsLinked to original sources
PubMed1997

Hemangioma of the temporal bone in a patient presumed to have Ménière's syndrome.

This case report describes a patient with a facial nerve hemangioma of 8 years' duration that initially caused most of the symptoms of Ménière's syndrome: fullness, sensorineural hearing loss, dizziness, tinnitus, and disruption of balance. The hearing loss was in the high-frequency range (> or = 3,000 Hz); typically, the initial hearing loss in Ménière's syndrome is in the low-frequency range. Mild facial nerve weakness and punctate keratitis due to corneal exposure appeared 8 years later. Contrast-enhanced magnetic resonance imaging and high-resolution computed tomography depicted the lesion and made preoperative diagnosis possible. With meticulous surgical removal of the tumor, which was intertwined with the facial nerve, facial nerve function was preserved.

Cranial Nerve Neoplasms↗
PubMed1995

Computer-based radiology information system: from floppy disk to CD-ROM.

The authors have developed a comprehensive computer-based radiology information system known as "Radiology Resource and Review" (R3). The content is divided into 10 radiology information categories spanning the entire human body and presently includes more than 4 Mbytes of text, 9,000 topics, and 6,000 images. The R3 software and the information content are stored on compact disk, read-only memory (CD-ROM) media. The images are compressed by using a standard compression algorithm. Images and text are cross-indexed with more than 13,000 key words, which can be linked together in searches by using Boolean logic. Four different retrieval interfaces support browsing of text and image information, diagnosis decision making, self-study, and teaching file preparation. The 10-year university-funded evolution of R3 is an example of the transition in storage media from floppy disk to CD-ROM.

CD-ROM↗
PubMed1994

Computerized case-based instructional system for computed tomography and magnetic resonance imaging of brain tumors.

RATIONALE AND OBJECTIVES: A computerized system that applies the case-based approach to training radiologists to diagnose brain tumors was designed. The authors attempted to provide residents a tool that supports their visual memory and inducts case-based reasoning. METHODS: A relational database with a digital image library was implemented and incorporated into a computer aided instruction environment based on case presentation. An indexing system was structured around case features (case history and radiologic findings). "If-then" type rules were used to control the search direction within the case library and to generate lists of diagnostic hypotheses. The indexing system was evaluated against cases "known" to the system. RESULTS: The current case library consists of 122 cases with 640 digitized images (computed tomography and magnetic resonance imaging). The accuracy of retrieval for "known" to the system cases was 80.7%. CONCLUSIONS: A case library stored on a personal computer can be efficiently searched for a combination of radiologic findings and can offer quality images for comparison to the case in question. A case library is a source of the information that may be used by different teaching applications.

Brain Neoplasms↗
PubMed1993

Parathyroid scintigraphy with iodine-123 and 99mTc-sestamibi: imaging findings.

Subtraction scintigraphy with 99mTc-pertechnetate and 201Tl-chloride is widely used for localizing the parathyroid gland, but the sensitivity of this method averages only 55%. The sensitivity of scintigraphy is improved by using a combination of 99mTc-sestamibi and iodine-123. Parathyroid adenomas can also be localized with 99mTc-sestamibi alone by subtracting early images from late sequential images. The fast washout of 99mTc-sestamibi from the thyroid gland allows visualization of the parathyroid gland. The purpose of this essay is to illustrate the findings of abnormalities of the parathyroid glands when using a combination of 99mTc-sestamibi and iodine-123.

Adenoma↗
PubMed1991

X-ray ownership.

Explore the source record for details and available documents.

Forms and Records Control↗
PubMed1989

MRI in the evaluation of spina bifida patients in the remote period after meningomyelocele repair.

MRI was performed on 22 patients ranging in age from 3 months to 16 years who had closure of their meningomyelocele shortly after birth. These patients had developed new clinical findings suggestive of spinal cord dysfunction. MRI showed low placement of the spinal cord in all 22. Six patients had lipomas, five had diastematomyelia and six had hydromyelia. Four patients had an obviously dysplastic terminal cord.

Adolescent↗
PubMed1989

Lumbar myelography with iohexol in outpatients: prospective multicenter evaluation of safety.

A multicenter open, noncomparative evaluation of the safety of iohexol was prospectively conducted in 81 adult outpatients undergoing screen-film lumbar myelography. Iohexol (180 milligrams of iodine per milliliter) was administered via a lumbar route at a dose of 8-17 mL. Computed tomography (CT) was performed after myelography. The safety of iohexol was assessed by monitoring adverse reactions and neurologic status and by measuring vital signs and serum laboratory values. The most frequent adverse reaction was headache (16 of 81 patients [19.7%]). Twelve patients complained of a headache on the day of the myelographic procedure, and four patients reported a headache 24 hours after the procedure. Nausea or vomiting occurred in four of 81 patients (4.9%) only on the day myelography was performed. No other neurologic abnormalities were found. Iohexol produced myelographic and CT studies of good to excellent quality in all patients. This study indicates that iohexol can be employed safely in lumbar myelography of adult outpatients.

Adult↗
PubMed1987

Multiple intraparenchymal brain plasmacytomas with spontaneous intratumoral hemorrhage.

The case of a patient with two intraparenchymal brain plasmacytomas without cranial or dural attachment and with intratumoral hemorrhage is presented. Computed tomographic (CT) findings are described. Autopsy revealed two discrete intraparenchymal plasmacytomas with intratumoral hemorrhage, one cerebral and one cerebellar. There have been few case reports of brain plasmacytoma without cranial or dural attachment, and this case of multiple such intracranial, intraparenchymal plasmacytomas with hemorrhage is certainly unique. Intratumoral hemorrhage with intracranial plasmacytoma is extraordinarily rare. The literature of intracranial involvement with myeloma and plasmacytoma and the CT appearance of intracranial plasmacytoma are surveyed.

Brain↗
PubMed1986

High-resolution computed tomography in intracranial aneurysms.

High-resolution computed tomography in intracranial aneurysms is a highly valuable procedure. Its indications are as follows: to determine the presence of subarachnoid hemorrhage and to predict the location of aneurysms; to identify and characterize saccular and giant aneurysms; to assess the complications of aneurysm rupture; to evaluate operative maneuvers and postoperative complications. The technique of high resolution computed tomography consists of unenhanced and enhanced 10-mm-thick sections followed by 1.5mm thin sections through suspicious areas. A bolus of 100cc of 60% meglumine diatrizoate is given for the enhanced study. A repeat bolus of 60cc of contrast agent is administered prior to the thin sections. Direct coronal scanning and sagittal/coronal reformatting is frequently used. This review will detail the technique used in this procedure as well as present examples of the major indications listed above. This is the procedure of choice for patients suspected of having had a subarachnoid hemorrhage or harboring an intracranial aneurysm.

Cerebral Angiography↗
PubMed1985

Intraventricular cavernous hemangioma: report of three cases and review of the literature.

The clinical and radiographic presentations of 3 patients with intraventricular cavernous hemangioma are described. The accumulated total of 19 cases from the literature are compared to determine whether there is a common clinical and radiographic presentation for this benign intraventricular lesion. The differential diagnosis of intraventricular cavernous hemangioma includes intraventricular meningioma, choroid plexus papilloma, arteriovenous malformation, low grade astrocytoma, and ependymoma.

Adult↗
PubMed1984

Lumbar myelography with iohexol and metrizamide: a comparative multicenter prospective study.

Diagnostic quality of radiographs and adverse reactions associated with the use of metrizamide and iohexol as contrast agents in lumbar myelography were compared in a prospective randomized double blind study in 350 patients at seven centers. The contrast media were administered in comparable volumes at a concentration of 180 mg I per ml. Overall quality of radiographic visualization was graded good or excellent in 95% of 175 metrizamide studies and in 98% of 175 iohexol studies. Ninety-three patients examined using metrizamide (53%) and 130 patients examined using iohexol (74%) experienced no discomfort during or after myelography. Postmyelographic headache was associated with 38% of metrizamide examinations and 21% of iohexol examinations. Nausea and vomiting were also more common with metrizamide. Five patients examined using metrizamide (3%) experienced transient confusion and disorientation following lumbar myelography. No such reactions were observed following iohexol myelography.

Adolescent↗
PubMed1984

Computed tomographic discography in the evaluation of extreme lateral disc herniation.

Thin section, high resolution computed tomographic (CT) scans of the lumbar spine produce images that can show herniated intervertebral discs without intravenous or intrathecal contrast enhancement. With this technique, the diagnosis of posterolateral and midline herniation has been greatly facilitated. This communication reports the use of CT discography in the preoperative evaluation of two patients who were shown at discography and proven at operation to have extreme lateral disc herniations.

Humans↗
PubMed1984

Angiography of pulmonary emboli: digital studies and balloon-occlusion cineangiography.

The value of digital pulmonary arteriography and balloon-occlusion cineangiography was investigated in 118 selected patients. In one series of 40 patients, digital pulmonary arteriography correctly identified pulmonary emboli in 20 (75%) of 26 positive examinations when interpretation was confined to the first three divisions of the pulmonary artery. In a second series of 78 patients with peripheral radionuclide perfusion scan defects, 40 of whom had pulmonary emboli, adjunctive balloon-occlusion cineangiography demonstrated emboli in four patients not seen on standard selective catheter pulmonary magnification studies with cut films. These two procedures (i.e., digital pulmonary arteriography and balloon-occlusion cineangiography) are important adjuncts to radionuclide perfusion scans and selective catheter pulmonary arteriography in the evaluation of patients with pulmonary emboli.

Angiography↗
PubMed1984

Cranial sonography: anatomic and pathological correlation.

Through the acoustic window of the anterior fontanelle, coronal and parasagittal sonograms of the infant and premature neonate are easily obtained. Supplementary axial images are obtained through the lateral skull vault. The normal anatomy of axial, coronal, and sagittal sonograms will be demonstrated by correlating normal infant brain images with cadaver brain slices at similar levels. The relevant anatomical structures will be identified and labeled. Pathological entities, i.e., intracerebral hemorrhage, brain tumors, arteriovenous malformations, hydrocephalus, and congenital malformation syndromes will be included. Neonatal ultrasound is an inexpensive, innocuous, and noninvasive technique for examining the brain of the newborn infant. It does not require sedation and can be performed either within the radiology department or in the newborn intensive care unit.

Brain↗
PubMed1984

Radiology of thoracic and lumbar fractures.

High-resolution computed tomography (CT) is superior to other imaging modalities in assessing the extent and degree of spinal fractures. The determination of bone fragments within the spinal canal and the detection of posterior neural arch damage are major advantages offered by computed tomography. The addition of intrathecal contrast allows proper assessment of the oftentimes confusing neurologic picture. Plain roentgenograms of the spine are only the initial diagnostic examinations of spinal fractures. Roentgenograms in conjunction with high-resolution CT, performed with or without intrathecal contrast, provide the best evaluation of thoracolumbar spinal fractures.

Fractures, Bone↗
PubMed1983

Mycotic aortic aneurysm diagnosed by In-111 leukocyte scintigraphy and computed tomography.

The diagnosis of mycotic aneurysm is often elusive, since the patient frequently has signs and symptoms of sepsis only. A patient with a clinically occult mycotic aneurysm was assessed by the combined use of indium-111 leukocyte scintigraphy and computed tomography. While neither study was diagnostic by itself, the combined information obtained from the two noninvasive modalities facilitated the correct diagnosis preoperatively.

Aneurysm, Infected↗