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Biomedical subjects

A M Fried

Publications and source records attributed to A M Fried.

At least 55 records · Page 3Linked to original sources
PubMed1979

Hydronephrosis of pregnancy: ultrasonographic study and classification of asymptomatic women.

Ultrasonographic examination of the upper urinary tract in 109 asymptomatic pregnant women was performed to determine the degree of dilatation, the time of onset, and the range of "physiologic" changes detectable by this method. Classification is established and prevalence and degree of dilatation are categorized by trimesters. The onset of dilatation is seen earlier than previously reported and the degree of obstruction is quite variable for the asymptomatic patient. The right side predominates, as expected. The finding of mild dilatation in a symptomatic patient would prompt a search for causes other than obstruction.

Dilatation, Pathologic↗
PubMed1979

Computed tomographic evaluation of para-aortic hematoma following translumbar aortography.

Computed tomography provides an objective means of studying needle passage and para-aortic hematoma formation following translumbar aortography (TLA). CT scans from the puncture site to the aortic entry site were done in 13 patients before and after catheter removal to evaluate the incidence and extent of hematoma formation. Eleven (87%) demonstrated para-aortic hematomas following TLA; 8 were confined to the left para-aortic area and 3 involved both sides. The catheter passed through the left kidney in one patient; however, no hematoma was observed.

Aortic Diseases↗
PubMed1979

Incarcerated Spigelian hernia: ultrasonic differential diagnosis.

The gray scale ultrasonic findings in a case of incarcerated Spigelian hernia are presented. This hernia is uncommon, and the clinical diagnosis can be difficult. The appearance of the lesion is compared with others in and about the abdominal wall, including rectus sheath hematoma, seroma, abscess, peritoneal tumor implants, and pseudocyst at the end of a ventriculoperitoneal shunt. Clinical and sonographic differentiation is emphasized.

Abdominal Muscles↗
PubMed1978

Distribution of the bulk of the normal placenta. Review and classification of 800 cases by ultrasonography.

A series of 800 ultrasonographic placentographies is reviewed and categorized by the location of the main bulk of the placenta. It represents, to our knowledge, the first such study of the undisturbed placenta and demonstrates a remarkably even distribution with frequent overlapping of more than one uterine sector. A simple form of categorization is presented and the clinical implications and value of ultrasonography are underscored.

Female↗
PubMed1978

The influence of ultrasound on the frequency of amniocentesis.

To determine the effect of development of ultrasonographic guidance techniques on the frequency of amniocentesis, we compared two two-year periods before and after the use of ultrasound. Statistically significant decreases in both the number of amniocenteses ordered and the number performed were observed. We concluded that ultrasound has been judiciously used and has not prompted an increased use of amniocentesis merely because of improved ease and safety. A slight decrease in the perinatal mortality rate mitigates against any compromise in the standard of antenatal care.

Amniocentesis↗
PubMed1978

Pseudocyst formation in hereditary pancreatitis.

The previously estimated incidence of pseudocyst formation in hereditary pancreatitis is approximately 10%. Our experience in nine patients with hereditary pancreatitis yielded five surgically documented pseudocysts and three additional patients with radiographically documented mass effects. Recent studies have shown a 20% spontaneous regression rate for pancreatic pseudocysts (of all etiologies), when evaluated by B-mode ultrasonography; our experience suggests that the incidence of pseudocyst formation in hereditary pancreatitis is considerably higher than previously suspected. Ultrasonography is thought to be an excellent method for diagnosing this entity, of evaluating mass effects identified on radiographic studies, and of providing sequential evaluation of pseudocysts treated surgically or conservatively.

Adolescent↗
PubMed1978

Hydronephrosis with ureteral valve: diagnosis by ultrasonography and antegrade pyelography.

A case of massive hydronephrosis secondary to a ureteral valve was discovered upon evaluation of mild trauma. The orderly diagnostic studies, including ultrasonography and antegrade pyelography, led to the correct diagnosis and appropriate therapy. Ultrasonography as a diagnostic tool in urology is discussed and characteristics of the 18 cases of ureteral valves reported to date are reviewed.

Child↗
PubMed1978

Abdominal CSF pseudocyst secondary to ventriculoperitoneal shunt: diagnosis by computed tomography in two cases.

Two cases are presented in which the preoperative diagnosis of abdominal cerebrospinal fluid pseudocyst was made by computed tomography (CT). The collection can be well outlined by this method, and measurement of density values characterizes the contents as a water density; the relationship of portions of the shunt catheter to the pseudocyst can be demonstrated as well. It is suggested that, in a patient with a ventriculoperitoneal shunt who develops abdominal signs or symptoms, CT can provide the definitive diagnosis of this entity.

Abdomen↗
PubMed1978

Intraventricular hemorrhage in blunt head trauma.

A series of 200 computed tomography (CT) scans performed for blunt head trauma was reviewed. Six patients were found to have clearly definable intraventricular hemorrhage (IVH); in three cases no other CT abnormality was noted. Computed tomography represents the only noninvasive method of detecting IVH, and the incidence of this entity has not previously been studied. Future attention to this problem may well demonstrate an even higher incidence, and establishment of its prognostic significance in trauma will be of considerable value. Scanning in the immediate posttrauma period is crucial.

Adolescent↗
PubMed1978

High-dose renal pharmacoangiography in the assessment of hypovascular renal neoplasms.

From 6% to 25% of primary renal carcinomas are either hypovascular or avascular and are the major source of false negative angiography. High-dose renal pharmacoangiography, a valuable adjunct to conventional angiography, combines a renal vasodilator, acetylcholine, with a high dose of contrast medium. High-dose renal pharmacoangiography improves the diagnosis of hypovascular mass by enhancement of tumor vessels, increase of tumor stain, and better opacification of main and collateral renal veins. During a 4 year period, 20 hypovascular renal neoplasms were studied and successfully diagnosed preoperatively by this method.

Acetylcholine↗
PubMed1978

Uterine anomalies associated with renal agenesis: role of gray scale ultrasonography.

Anomalies of the female genital tract were successfully characterized by gray scale ultrasonography in three cases; all three were found in association with unilateral renal agenesis. Findings at intravenous urography prompted ultrasound studies. The high incidence of genital tract anomalies associated with unilateral renal agenesis, particularly in females, indicates ultrasonography be used to examine the pelvis (as well as the renal bed). Further diagnostic procedures can then be assessed on a more informed basis.

Abnormalities, Multiple↗
PubMedDate not supplied

Biliary obstruction in a canine model: sequential study of the sonographic threshold.

Complete occlusion of the common bile duct was surgically created in eight dogs. Sequential gray-scale ultrasound studies were performed with serum bilirubin determinations. Dilatation of the intrahepatic biliary radicles was first recognized sonographically from five to eight days postoperatively (average 6.4 days). The findings indicate a temporal lag between the onset of obstruction and recognition by ultrasound. In the appropriate clinical setting, a delayed repeat examination may be advisable. No correlation between ductal dilatation and serum bilirubin levels was ascertained.

Animals↗