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Biomedical subjects

J H Scatliff

Publications and source records attributed to J H Scatliff.

At least 19 recordsLinked to original sources
PubMed1990

The echogenic ependymal wall in intraventricular hemorrhage: sonographic-pathologic correlation.

Fifty-one patients with ultrasound diagnosis of intraventricular hemorrhage (Grades III and IV) were studied retrospectively for the presence of ependymal echogenicity. The sonographic findings were then correlated with histologic findings in six autopsy cases. Forty-one out of fifty-one newborns with intraventricular hemorrhage developed ependymal echogenicity on serial ultrasound studies. This echogenicity appeared approximately seven days after the hemorrhagic event and usually disappeared in about six weeks. Histologic examination revealed disruptions in the ependyma with proliferation and extension of subependymal glial cells onto the ventricular surface in those cases in which ependymal echogenicity was present at the time of death. This layer of proliferating subependymal glial cells may account for the ependymal echogenicity.

Cerebral Hemorrhage↗
PubMed1989

Closed spinal dysraphism: analysis of clinical, radiological, and surgical findings in 104 consecutive patients.

We reviewed 104 consecutive cases of closed dysraphism in patients seen at one institution between December 1984 and June 1987. All patients had myelographic studies, and 43 had associated CT examinations. Clinical and surgical findings (64 patients) were correlated with myelographic information. Twenty-three patients (22%) with clinical or plain film findings compatible with dysraphism had normal-appearing cords on conventional myelography, movement between supine and prone positions, and no lesions in the spinal canal. Cerebellar tonsillar ectopia (majority of tonsils between foramen magnum and C1) was found in 17 patients (16%). Six patients (6%) exhibited varying degrees of hydromyelia. In the supine position, CT-myelography of meningoceles, meningomyeloceles, or lipomeningomyeloceles may limit demonstration of the neural placode and nerve roots because of compression of the CSF-containing sac. In the decubitus position, CT scans improved demonstration of neural tissue-CSF space relationships. CT scans were useful in demonstrating anomalous paraspinal bones, diastematomyelia spurs, and spinal and sacral bone deficiency. Axial CT-myelography of intradural lipomas showed apparent neural tissue extension into the lipomas.

Child↗
PubMed1988

Ventilator-induced pulmonary pseudocysts in preterm neonates.

Twenty-three pulmonary pseudocysts were identified in 20 preterm neonates undergoing mechanically assisted ventilation. Most of the pseudocysts occurred in a right parahilar location; cysts were either single (13) or multiple/multilocular (10). The pseudocysts persisted from less than 2 days to longer than 3 months (modal duration, 7 days), and they were commonly associated with generalized pulmonary interstitial emphysema (18 of 20), pneumothorax (18 of 20), bronchopulmonary dysplasia (16 of 20), and pneumomediastinum (six of 20). The reason for the predominantly right parahilar location of these pseudocysts remains uncertain. Pulmonary pseudocysts are almost always right-sided and are associated with pulmonary interstitial emphysema and pneumothoraces; complete resolution usually occurs.

Cysts↗
PubMed1987

A multimodality projection console for the radiology conference room.

A multimodality projection console for the radiology conference room is described. The configuration of the TV camera, view boxes, switches, and adjacent lectern allows better transmission and easier manipulation of images during consultation and lecture sessions with the faculty, and house officers.

Education, Medical↗
PubMed1987

Resident performance evaluation.

The authors have developed a resident evaluation system that minimizes inefficiencies and achieves the aims of evaluation. Individual resident performance is evaluated on each monthly rotation by those who have had significant contact with him as determined by the resident. Residents are rated as "below," "adequate," or "above" for these performance categories: (1) overall performance, (2) basic knowledge, (3) organizational skills, (4) communication skills, (5) interpersonal relationships, and (6) other areas and comments. The results are shared with the resident in a feedback session and recommendations made. These evaluations are summarized and discussed with the resident by the program director at the end of each year. This system has proved to be an efficient use of attending radiologist's and program director's time. The format has been accepted readily by all participants. The system has been helpful in identifying problem areas in resident performance and in curriculum and has resulted in prompt corrective action.

Employee Performance Appraisal↗
PubMed1986

A uniform acceptance date for resident recruitment.

Residency recruitment in diagnostic radiology remains a challenge. We recommend a unified policy of recruitment, to be agreed upon and adhered to by all residency training program directors. We endorse the action discussed at the 1985 Residency Training Program Symposium in Nashville to institute a Resident Match and strongly urge all program directors to participate. With more qualified candidates and a shrinking number of positions, it is the only rational solution to this dilemma.

Education, Medical, Graduate↗
PubMed1985

Computerized tomography and ultrasonographic findings in massive thymic hyperplasia. Case discussion and review of current concepts.

Massive thymic hyperplasia in the neonate and young infant can be difficult to diagnose. Differentiation from neoplastic lesions may require thoracotomy for a pathologic specimen. We review a case in a 15-month-old child referred to our institution and discuss the radiographic, ultrasound, and computerized tomographic features of hyperplastic thymic tissue. We review current concepts of the hyperplastic thymus as an anterior mediastinal mass in infancy.

Diagnosis, Differential↗
PubMed1985

Neonatal intestinal obstruction from omphalomesenteric duct remnants.

Three cases of omphalomesenteric band obstruction in early infancy with various radiographic presentations, including intermittent obstruction in one, are reported. Small-bowel volvulus was found in all three patients at surgery. One case progressed to bowel necrosis with portal venous gas. A survey of the mode of presentation, surgical findings, and pathology of 135 published cases of intestinal obstruction in children demonstrates that a closed loop, with or without volvulus, is the most common complication of remnant bands.

Female↗
PubMed1979

Computed tomography and spinal dysraphism: clinical and phantom studies.

Two cases illustrating the value of CT in the assessment of spinal dysraphic tissue are presented. In one case, the configuration and origins of two osseous diastematomyelic spurs were shown well; in the second case, the CT recognition of a sacral lipoma led to air myelographic confirmation of the tumor and tethered cord. CT phantom studies indicated that dysraphic tissues, such as fat, cartilage, and fibrous tissue, are better identified and quantitated in the spinal canal when surrounded by air. Varying degrees of image degradation occur with water (simulating CSF) or metrizamide.

Adult↗
PubMed1979

Cerebral venous angioma: correlation of radionuclide brain scan, transmission computed tomography, and angiography.

Three cases of intracerebral venous angioma, a rare vascular malformation, were studied by radionuclide brain scan, transmission computed tomography (TCT) and angiography. In each case, the radionuclide flow study demonstrated a typical area of abnormal increase in activity during the venous phase; in two of the cases the arterial phase was also abnormal. Each contrast angiogram demonstrated a normal arterial distribution and a characteristic network of abnormal veins that converged to a large transcerebral draining vein. The TCT scans showed enhancing, curvilinear densities; while not specific, this finding should suggest the possibility of venous angioma in the brain.

Adult↗
PubMed1978

Quantitative multiregional CSF kinetics using serial, metrizamide enhanced computed tomography.

Two rhesus monkeys studied by serial metrizamide (Amipaque) enhanced computer tomography (CT) imaging were used to quantitatively analyze cerebrospinal fluid (CSF) kinetics in multiple anatomical regions. Time--density curves were generated for the cisterna magna, suprasellar cistern, quadrigeminal cistern, and sylvian fissure, If clinical, biochemical, and routine static CT scanning indicate a profile suggesting normal pressure hydrocephalus, then CSF kinetics may be quantitatively and dynamically studied by CT imaging with metrizamide enhancement. This multiregional approach may be applied in an attempt to accurately distinguish normal pressure hydrocephalus from cerebral atrophy as a means of predicting which patients will likely profit from surgical diversionary shunting.

Animals↗
PubMed1978

Claw hammer technique for extraction of knives.

A knife deeply imbedded in a patient's shoulder could not be pulled out easily before post-withdrawal angiographic study. The claw of a hammer was placed beneath the hilt of the knife for additional leverage, and the weapon was thereupon successfully removed. The advantage of a post-withdrawal angiogram to assess the degree of extravasation is stressed.

Adult↗
PubMed1976

Transcatheter embolization of the spleen for control of splenic hemorrhage and in situ splenectomy: an experimental study using silicone spheres.

Silicone spheres were used for the transcatheter arterial embolization of dogs. This material successfully stops splenic hemorrhage in the lacerated organ, and also reduces spleen size. Use of silicone emboli to produce in situ splenectomy is not associated with morbidity or mortality in dogs. The authors discuss the value of using these methods in treating the high-surgical-risk patient.

Animals↗
PubMed1975

131-I rose bengal liver scanning in the differential diagnosis of neonatal jaundice.

Results of a series of 2i liver scans with 131-I rose bengal in 21 patients who developed progressive jaundice in the neonatal period are described. Using the 131-I rose bengal scan alone, an attempt was made to separate the patients into two groups, the first with total bile obstruction (biliary atresia) and the second with only partial biliary tract obstruction (intrinsic liver disease). The diagnostic accuracy of the scan was 82%. An additional diagnostic criterion, the count radio, is suggested. The determination of this ratio requires no additional effort or expense and would improve the diagnostic accuracy of the scan used alone in this series of patients.

Biliary Tract↗
PubMed1975

Incomplete, false, and true diastematomyelia: radiological evaluation by air myelography and tomography.

Six cases of possible diastematomyelia studied by air myelography with tomography were thought to involve fibrous or bony septa, but in each case no septum was found. Surgical findings included prominent midline posterior fissures in the cord associated with fibrous bands, an unusual tentlike extension of the arachnoid over the spinal cord, and hemicords with no intervening septum. Recognition of an osseous septum on the plain film does not necessarily mean that the cord is completely divided by bone, as other structures derived from the mesoderm, such as fat or cartilage, may contribute to the septum. The importance of defining tethering of the cord posteriorly at the septum or conus level is stressed. Air myelography with appropriate projections appears to show posterior fixation of the cord to best advantage.

Child↗
PubMed1975

The "starry night" splenic angiogram. Contrast material opacification of the malpighian body marginal sinus circulation in spleen trauma.

In traumatized human spleens, focal 0.3-1 cm. areas of contrast material staining appear to represent the malpighian marginal sinus circulation. This circulation, when seen, is static or very slow moving. Extravasation of blood and contrast material also may be present in the marginal sinus network. The identification of diffuse or localized small areas of contrast material in the splenic angiogram of the traumatized patient suggests splenic contusion, intrasplenic hematoma, or both. The splenic angiographic appearance described may be compared to the globular appearance of stars, as depicted by van Gogh in his painting "The Starry Night."

Abdominal Injuries↗