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Biomedical subjects

M C Mintz

Publications and source records attributed to M C Mintz.

At least 37 records · Page 2Linked to original sources
PubMed1987

MR evaluation of uterine anomalies.

The MR features of uterine anomalies were analyzed in eight women. Scans were done on a 1.5-T magnet with T1-weighted (TR 600 msec, TE 25 msec) and T2-weighted (TR 2000-2500 msec, TE 35-80 msec) spin-echo images obtained in several planes. The anomalies consisted of bicornuate uterus (three cases), septate uterus (one case), bicornuate uterus with septation (two cases), unicornuate uterus (one case), and uterus didelphys with vaginal septum (one case). These diagnoses were confirmed by hysterosalpingography with laparoscopy (five cases), dilation and curettage with laparoscopy (one case), or cesarean section (two cases). In six of the eight cases, MR correctly identified and accurately classified the type of anomaly. In the other two cases, the MR diagnosis was a bicornuate uterus with septation. One case proved to be a uterus didelphys with vaginal septum, and the other a bicornuate uterus without septation. The study shows that MR is a valuable tool for the diagnosis of uterine anomalies.

Female↗
PubMed1987

CT evaluation of gracilis myocutaneous vaginal reconstruction after pelvic exenteration.

After pelvic exenteration for cancer, the gracilis muscles, skin, and subcutaneous fat from the inner aspect of both thighs may be raised as a pedicle flap and tunneled under the skin into the pelvic space to create a neovagina. We reviewed nine pelvic CT examinations in six patients to evaluate the CT appearance of this procedure and its complications. Five patients are alive and without complications. One patient died 6 months after surgery and had a small-bowel fistula to the neovagina. Normal CT findings included air in the vaginal canal in six of nine examinations, gracilis muscle atrophy in two patients who had early and late CT studies, and early separation of the anterior and posterior approximation of the flaps in one patient. Abnormal findings were seen in two patients: one had an abscess near the vaginal apex that was drained per vagina; the other had extraluminal air in the retropubic and subcutaneous fatty tissues due to a small-bowel fistula into the vagina.

Adult↗
PubMed1986

Cystic renal mass evaluation: real-time versus static imaging.

Fifty consecutive cystic renal masses in 43 patients were evaluated by both static scanning and real-time scanning techniques. Various parameters were evaluated and compared to ascertain whether the strict static scan cystic criteria were always present in comparable real-time evaluations. Four (8%) of the 50 masses were not classic cysts on real-time examinations, although the criteria were present on the static scans. Two had minimal acoustic enhancement and two had low-intensity internal echoes. Possible reasons for this difference were detailed and discussed. The potential problems in this observation were enumerated. Based on these observations, in certain cases when a cystic renal mass demonstrates poor acoustic enhancement or low-level internal echoes in real-time examination, static scanning may be helpful and may obviate the need for further studies.

Diagnosis, Differential↗
PubMed1986

Computed tomography in the diagnosis of renal pseudotumors.

If the initial evaluation of the urinary tract raises the possibility of renal mass, one must decide what study or studies to perform to confirm or deny its presence. Radionuclide imaging has been the study of choice in this situation. Six cases are presented in which computed tomography definitively demonstrated that a suspicious renal mass represented normal renal parenchyma. Comparison with other renal imaging modalities is discussed.

Adult↗
PubMed1986

Concurrent duplication and azygos continuation of the inferior vena cava.

Duplication of the inferior vena cava and azygos continuation of the inferior vena cava arise from separate embryologic anlage. The former arises from persistence of both supracardinal veins and the latter from arrested development of the right subcardinal vein. Individually these entities are uncommon, but their occurrence together in one patient is exceedingly rare. A patient with both these anomalies of the venous system concurrently is described. This combination has been reported only once before in the radiologic literature.

Azygos Vein↗
PubMed1986

Twin and singleton growth patterns compared using US.

Sonography has been used widely in the evaluation of singleton fetal growth. Twin gestations, however, have received less careful attention. In a statistical study of 103 twin pregnancies, the growth patterns of twin biparietal diameter (BPD), fetal femur length (FFL), and abdominal circumference (AC) were compared with those of singletons. The results of the study revealed a decrease in twin BPD growth after 31 to 32 weeks of gestation relative to singletons. Twin AC growth rate decreases after 32-33 weeks of gestation relative to singletons, but the twin FFL growth pattern does not deviate from that of singletons throughout gestation. Because of the significant difference in growth patterns of BPD and AC between twins and singletons in our population, new growth charts for twin BPD and AC are proposed.

Adolescent↗
PubMed1986

Gastrointestinal tract focal mass lesions: role of CT and barium evaluations.

Fifty-eight patients with focal mass lesions involving the gastrointestinal tract were studied retrospectively. The diagnostic value of CT scans was seen by assessing the barium studies alone, then by combined review of radiographs and CT scans. Patient management decision making was similarly evaluated. CT scanning aided in diagnosis of the focal masses in 17 patients (29%), changing the differential diagnosis in eight (14%) and increasing diagnostic confidence significantly in nine (16%). In 21 (36%) additional cases, the diagnosis did not change, but CT scanning improved the understanding of disease extent. In the remaining 20 cases (34%), CT scanning did not help diagnostically. CT scanning altered patient management decisions in 19 of the 58 patients (33%). CT study was most helpful in cases of benign extrinsic cystic disease, lymphoma, and smooth-muscle tumors and less helpful for adenocarcinomas of the bowel. The value of the CT data increased as one moved from mucosal lesions to submucosal or extrinsic lesions.

Adenocarcinoma↗
PubMed1986

Magnetic resonance imaging of the fetal temporal bone.

Magnetic resonance imaging (MRI) is a powerful new tool for the study of human anatomy and pathology. By various MRI techniques, the structure of the middle and inner ears of aborted 20-week fetuses is defined and compared to gross anatomic sections. MRI's potential for evaluating temporal bone development and diseases of the ear is discussed.

Ear, Middle↗
PubMed1985

Routine fetal genitourinary tract screening.

To evaluate routine fetal genitourinary tract obstetrical ultrasound screening, and to determine what size renal pelvis is indicative of significant renal disease, we reviewed 4,832 examinations, which had been performed over 2 years, of 3,530 consecutive obstetrical patients. Any fetus that had a renal pelvis greater than 5 mm or a definable cystic area was identified for follow-up. The fetuses of 39 patients (1.1%) who underwent 112 examinations fulfilled these criteria and constitute the basis of this report. A variety of examination criteria were recorded and analyzed in relationship to the follow-up, which ranged from 2-3 days to 21 months. The fetuses of the 39 patients were grouped into three categories: those with renal pelves between 5 and 9 mm in size; those with renal pelves larger than 10 mm; and those with cystic abnormalities. Those with renal pelves larger than 10 mm had either an obstructing lesion or exceptional extrarenal pelves. The clinical and pathologic aspects of these three groups are detailed, discussed, and analyzed. Criteria for significant fetal renal hydronephrosis and aspects of a loculated appearance are given.

Dilatation, Pathologic↗
PubMed1985

Sonographic evaluation of bile duct size during pregnancy.

Real-time sonography was used to examine the biliary tracts of 103 pregnant women. Common hepatic duct size, degree of right hydronephrosis, and presence of gallstones were noted. There were three important observations: (1) The top normal size of the common hepatic duct was 5 mm; (2) no correlation was found between common hepatic duct size and stage of pregnancy or degree of right hydronephrosis; and (3) gallstones were incidentally noted in 3.9% of patients.

Bile Duct Diseases↗
PubMed1985

Computed tomography and ultrasound of the traumatized and acutely ill patient.

CT and ultrasound have become invaluable diagnostic tools in the radiologic evaluation of the traumatized and acutely ill patient. CT is the imaging modality of choice in blunt abdominal trauma, retroperitoneal injury and some types of pelvic injury. Ultrasound plays an important role in the evaluation of patients presenting with right upper quadrant pain, renal failure, scrotal pain and enlargement, or pain and bleeding during pregnancy. CT should be reserved for patients with complicated pancreatitis or some forms of renal infection. Thus, CT and ultrasound are important imaging modalities in the work-up of many patients treated by the emergency room physician.

Abdomen, Acute↗
PubMed1984

Thyroid imaging: comparison of high-resolution real-time ultrasound and computed tomography.

High-resolution real-time ultrasound (US) and computed tomography (CT) were compared in 48 patients with a clinical diagnosis of thyroid abnormality and also correlated with biopsy or surgery. The modalities were considered comparable in 38 cases (79%), while CT was superior in 5 and US in 5. CT illustrated substernal extension of a goiter, demonstrated a 5-mm nodule not seen in US, showed 2 cases of thyroiditis better than US, and diagnosed a suspected thyroid mass as a lipoma anterior to the thyroid. US detected 4 nodules not seen on CT and resolved contiguous nodules that appeared to be a single nodule on CT. Both techniques lacked histopathological specificity. CT appears to be advantageous in detecting substernal thyroid extension and confirming thyroiditis, while the ability of US to detect small nodules makes it the procedure of choice in evaluating suspected intrinsic thyroid abnormalities.

Adolescent↗