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Biomedical subjects

R A Filly

Publications and source records attributed to R A Filly.

At least 217 records · Page 12Linked to original sources
PubMed1983

The lateral cerebral ventricle in early second trimester.

In routine imaging of normal early second trimester pregnancies, one will not infrequently encounter potentially confusing cases which may raise the question of fetal hydrocephalus. In a retrospective analysis of 100 cases, this appearance occurred in 10. The anatomic origins of this potential error are discussed, and an imaging technique is described which can be used to exclude fetal hydrocephalus in confusing cases. Close apposition of the normally large choroid plexus with the medial and lateral walls of the ventricular body and atrium indicates normalcy.

Female↗
PubMed1983

Nuclear magnetic resonance imaging characteristics of gallstones in vitro.

The nuclear magnetic resonance (NMR) imaging characteristics of gallstones of various composition from 36 patients were studied in vitro using a spin-echo imaging technique. The majority of gallstones (83%) produced no measurable NMR signal despite having a mean water content of 12% and a mean cholesterol content of 61%. Six (17%) of the stones had a weak but measurable signal in the center of the stone, which was thought to represent signal from water in clefts or pores within the stones. The mean water and cholesterol content of the stones with measurable signal did not differ significantly from that of stones with no signal. A possible explanation for these findings, based on the known NMR characteristics of solid materials, is offered.

Bilirubin↗
PubMed1983

Intracranial hemorrhage: late onset in the preterm neonate.

Neonatal intracranial hemorrhages usually occur during the first week of life. Late intracranial hemorrhages have rarely been reported. Seventeen infants were identified whose hemorrhages occurred after the first postpartum week. The latest hemorrhage occurred eight weeks postpartum. Most of the hemorrhages were small and restricted to the region of the germinal matrix. Sixteen of the infants were premature, with an estimated postconceptual age at the time of hemorrhage of 33 weeks or less.

Cerebral Hemorrhage↗
PubMed1983

Polyhydramnios associated with fetal limb abnormalities.

Four cases of fetal dwarfism and one case of extremity shortening with limb reduction abnormalities associated with polyhydramnios are presented. In one case, the diagnosis of camptomelic dwarfism associated with polyhydramnios was missed on sonography because no extremity measurements were obtained. Severe fetal limb anomalities were prospectively diagnosed in two patients with polyhydramnios by sonographic measurement of fetal limb lengths. The development of polyhydramnios was observed in two additional cases of fetal dwarfism. These five cases are presented to emphasize the clinical significance of recognizing the relationship between polyhydramnios and fetal dwarfism.

Arm↗
PubMed1983

Breast cancer detection with sonography and mammography: comparison using state-of-the-art equipment.

This prospective study, involving 1,000 women referred for routine mammography, compares the breast cancer detecting abilities of state-of-the-art mammography and sonography using an automated water-path scanner. Mammography was found to be the superior technique, detecting 62 (97%) of the 64 pathologically proven cancers, while sonography detected only 37 (58%). When considering those cancers most amenable to cure, mammography detected over 90% in all categories, but sonography detected only 48% of the cancers that had not yet spread to axillary lymph nodes, only 30% of the nonpalpable malignancies, and only 8% of the cancers smaller than 1 cm. These data indicate that sonography is not an acceptable substitute for mammography in the detection and diagnosis of breast cancer. The data further suggest that radiologists who wish to improve the cancer-detecting ability of their current breast imaging operation should upgrade their mammography to state-of-the-art status before adding an automated whole-breast ultrasound scanner.

Breast Neoplasms↗
PubMed1983

Relationship of fetal hydronephrosis to spinal dysraphism.

Thirty-one fetuses with hydronephrosis and 14 fetuses with spinal dysraphism were sonographically examined. In only one instance was spinal dysraphism associated with hydronephrosis. This single case was identified in a term pregnancy. There was no statistically significant association of urinary tract dilation and open spinal defects in utero. This observation tends to confirm the reports that urinary tract dilatation associated with spinal dysraphism is less frequent when neonates and children are compared. the progressive decrease in this association appears to extend to the fetal period.

Adult↗
PubMed1983

Real-time vs. static scanning in the diagnosis of abdominal and pelvic abscesses.

The authors prospectively compared real-time and static scanning in 39 patients (44 examinations) suspected clinically of having abdominal or pelvic abscesses. In every case, real-time and static scanning agreed as to the presence or absence of an abscess. In 17 of 19 instances in which abscesses were diagnosed on the basis of ultrasonographic examinations the diagnoses were verified by surgery. Twenty-four of 25 negative ultrasonographic results were confirmed by clinical follow-up. The use of portable real-time ultrasonography to examine seriously ill patients who are unable to be transported to the ultrasound laboratory does not diminish the diagnostic accuracy for suspected abdominal or pelvic abscesses.

Abdomen↗
PubMed1983

Ultrasonographic evaluation of fetal paranephric pseudocysts.

Ultrasonographic evaluation of the fetus with urinary tract obstruction requires not only precise delineation of the level of obstruction but also differentiation from other nonobstructive renal entities. The authors evaluated five fetuses in which large unilocular paraspinous fluid collections were seen at ultrasonography. While these masses simulated the appearance of large hydronephrotic sacs, they actually represented paranephric pseudocysts. In four of the five cases in which a paranephric pseudocyst was seen the ipsilateral kidney was nonfunctioning.

Diagnosis, Differential↗
PubMed1983

Experimental study of the sonographic diagnosis of testicular torsion.

The sonographic and Doppler features of acute spermatic cord torsion were investigated in eight dogs. Serial sonography following torsion demonstrated unambiguous abnormalities in all experimental subjects within one hour. The observed abnormalities included increase in size of the spermatic cord, testis, and epididymis, decrease in echogenicity of the testis and epididymis, and loss of Doppler signal from the cord. Sonographic abnormalities were clearly visible before any histologic change was detected and well in advance of the onset of cellular necrosis. Since every experimental subject had an abnormal testicle, the identification of a normal testicle in a clinical setting is felt to exclude torsion. Combined gray-scale sonographic and Doppler features appear promising in the diagnosis of acute spermatic cord torsion and its distinction from acute epididymo-orchitis.

Animals↗
PubMed1982

Fetal treatment 1982.

Explore the source record for details and available documents.

Congenital Abnormalities↗
PubMed1982

In utero treatment of urinary tract obstruction.

A male fetus (one of twins) was noted to have ascites at 17 menstrual weeks and during the following 13 weeks developed a dilated and hypertrophied bladder, hydroureters, and hydronephrosis. Placement of an indwelling suprapubic catheter in utero allowed drainage of urine from the fetal bladder and further in utero development. The infant was born vaginally at 34 weeks and had "prune belly" syndrome but had normal pulmonary and renal function.

Catheters, Indwelling↗