PubMed Health⌕ Search

Biomedical subjects

M G Dunne

Publications and source records attributed to M G Dunne.

At least 19 recordsLinked to original sources
PubMed1990

A simple expert system shell for microcomputer-aided radiographic diagnosis.

A simple microcomputer-based expert system shell for radiographic diagnosis is described. The system interrogates the user by means of a simple question--and-answer approach on the radiographic findings in a given case and proffers a differential diagnosis from a database. The system also allows listing of both the radiographic findings pertinent to a specific diagnosis and all diagnoses in which a particular finding or combination of findings occur. The system database can be easily updated or modified by the user. The demonstration application for the expert system shell is the plain film diagnosis of osseous dysplasia.

Expert Systems↗
PubMed1989

Radiologic staging of lung carcinoma: a report generator and database system.

A checklist used by the radiologist interpreting images on lung carcinoma patients for tumor staging is described. The checklist data is subsequently entered into a user friendly microcomputer program which radiologically stages lung carcinoma according to the updated TNM system, maintains an upgradable relational database and generates printed reports for tumor board meetings.

Database Management Systems↗
PubMed1985

Intestinal Salmonella carriage in patients with major sickle cell hemoglobinopathies.

The increased incidence of Salmonella osteomyelitis in patients with sickle cell disease has never been entirely explained. Problems such as cholelithiasis, intestinal infarction, and frequent antibiotic use in this population could possibly result in prolonged or chronic intestinal carriage of Salmonella after acute gastroenteritis. If prolonged carriage were a factor in the pathogenesis of osteomyelitis, attempts to eliminate the Salmonella with antibiotics would be indicated. We did a stool culture survey of 71 patients attending our pediatric sickle cell clinic to determine the incidence of asymptomatic Salmonella carriage. At least two rectal swab cultures were obtained from each patient; 69% of patients also mailed in a stool sample for culture. No Salmonella was isolated. It therefore appears unlikely that prolonged intestinal Salmonella carriage is an important mechanism in the development of Salmonella osteomyelitis in patients with major sickle hemoglobinopathies.

Adolescent↗
PubMed1985

Pelvic haematocele in ruptured ectopic pregnancy simulating uterine enlargement.

Rupture of an ectopic pregnancy may result in the formation of a pelvic haematocele. Four cases are presented in which the haematocele appeared as a solid or complex mass of coarse echoes on ultrasound examination and was indistinguishable from the uterus. Because of this, the sonographic examination suggested enlargement and inhomogeneity of the uterus. Differential diagnosis is discussed.

Adult↗
PubMed1984

Cholelithiasis in patients with major sickle hemoglobinopathies.

Cholelithiasis is a common complication of homozygous sickle cell disease. The frequency of gallstones appearing in patients with heterozygous sickle hemoglobinopathies is unknown. We performed sonographic tests on 65 unselected patients with major sickle hemoglobinopathies. Cholelithiasis was found in 11 (26%) of the 42 patients with hemoglobin SS, in three (20%) of the 15 with Hb SC, and in one (12.5%) of the eight with Hb S-beta-thalassemia. There was a correlation between the presence of gallstones and increasing age. All patients with major sickle hemoglobinopathies are at risk for the development of biliary tract disease.

Adolescent↗
PubMed1984

CT appearance of intrauterine pregnancy.

There is little information in the literature regarding the computed tomographic (CT) appearance of pregnancy. We had the occasion to study two female lymphoma patients with CT, both of whom had unsuspected intrauterine pregnancies. One of these patients presented at 13 weeks' and the other at 22 weeks' gestation. We describe the CT findings in each of these cases.

Adolescent↗
PubMed1983

Thymic cyst: computed tomography and ultrasound correlation.

Thymic cyst is a rare cause of an anterior mediastinal mass that cannot be easily differentiated from more sinister neoplastic anterior mediastinal processes on the chest radiograph. It is controversial as to whether computed tomography can make the distinction between thymic cysts and neoplastic disease. Sonography is a useful adjunct to the computed tomographic examination in determining whether or not an anterior mediastinal mass is cystic. Sonography is easily performed provided the mass is in contact with the chest wall.

Adult↗
PubMed1983

Portable real-time sonography--a valuable adjunct to computed tomography.

As fast high-resolution total body computed tomography (CT) scanners have proliferated in hospitals and radiologists' offices across the country, they have tended to eclipse the usefulness of sonography in abdominal and thoracic diagnosis. This paper discusses some of the limitations of CT techniques as applied to common abdominal and thoracic problems. Emphasized here are situations wherein a quick examination with a portable real-time ultrasound device while the patient is on the CT table can result in a definitive CT report.

Abdomen↗
PubMed1983

Ultrasonic appearance of pyelogenic cysts.

Two cases, one in an adult and one in a child, of ultrasonically demonstrated cystic masses were shown to be pyelogenic cysts on contrast urography. Because of the similar appearance of pyelogenic and simple cysts of the kidney on sonography, contrast urography is important for the differential diagnosis.

Adult↗
PubMed1983

Sonographic determination of fetal gender before 25 weeks gestation.

Sonographic determination of fetal gender was attempted prospectively in 121 consecutive routine obstetric scans between 10 and 25 weeks gestation. There were two sets of twins in this group, so a total of 123 fetuses was studied. Birth records were subsequently available in 113 of these fetuses at which time conclusive data regarding the fetal gender could be analyzed. Of these 113 fetuses, a sonographic determination of fetal gender was made in 53 (47%). There were three errors in this group of 53 (error rate 6%) and all of these incorrect determinations were male fetuses thought to be females in utero by sonography. There were no errors in those called male by sonography in utero. The male-female mix demonstrated a higher number of males in the group in whom sonographic determination was possible. There was a lower number of males than females in the group in whom the gender of the fetus could not be detected by sonography. A significantly higher number of males (60) than females (53) was present in the study population for no apparent reason.

Female↗