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Biomedical subjects

G Bogner

Publications and source records attributed to G Bogner.

10 recordsLinked to original sources
PubMed2000

Combined transvaginal B-mode and color Doppler sonography for differential diagnosis of ovarian tumors: results of a multivariate logistic regression analysis.

OBJECTIVE: Transvaginal sonography is limited in its ability to assess early stage cancers of the ovary as well as in distinguishing benign processes. As a method for characterization of tumor vascularization, color-coded Doppler sonography may be able to improve the diagnostic accuracy of B-mode sonography. METHODS: Preoperative transvaginal B-mode and Doppler sonography was performed in 63 patients with unclear adnexal lesions prior to operation. Using multiple logistic regression, the independent variables of each procedure were selected and combined to yield a diagnostic flow chart. The diagnostic accuracy of this decision matrix was tested on 257 patients with unclear adnexal tumors. RESULTS: In the 63 adnexal tumors investigated, the diagnostic impact of isolated sonomorphological assessment with evidence of a "solid area" was 78%. Using Doppler sonography, the best discrimination was achieved by displaying the vascular distribution ("central vascularization"). Combining these independent significant variables of the two procedures raised the diagnostic accuracy to 90% (sensitivity 86%, specificity 93%). The validity achieved by this combination was confirmed by the independent application of this method to the 257 adnexal tumors with unclear malignancy status (diagnostic accuracy 93%, sensitivity 92%, specificity 94%). CONCLUSIONS: The combination of sonography and Doppler sonography achieves high and reproducible diagnostic accuracy in preoperative malignancy status assessment of adnexal tumors. The additional use of Doppler sonography can thus provide significant aid both for differential diagnostics of adnexal lesions and for the choice of surgical route in the case of an existing indication for operative therapy.

Adnexal Diseases↗
PubMed1994

First trimester three-dimensional ultrasound volumetry of the gestational sac.

First trimester amniotic fluid is an ultrafiltrate of maternal plasma and constitutes the major component of gestational sac volume (GSV). We hypothesized that GSV, assessed by 3-dimensional (3-D) ultrasound volumetry, would reflect function of the early uteroplacental unit and therefore provide a basis for predicting pregnancy outcome. We tested this hypothesis in 38 pregnancies which had first trimester GSV measurements by two investigators thus allowing determination of interobserver variation. Gestational age (GA) was based on a careful history and conventional 2-dimensional ultrasound measurements. Serum for beta-hCG, estradiol (E2) and progesterone (P) was obtained at the time of ultrasound examinations. "Normal" outcome was defined as confirmation of a viable fetus. "Abnormal outcome" was defined as either a "blighted ovum" or embryonic demise. Statistical analysis was performed by Independent t-test and regression analysis. There were 31 "normal" and 7 "abnormal" pregnancies studied between 5 and 11 weeks gestation (mean +/- SD 8.3 +/- 1.3 weeks). GSV was significantly correlated to GA (r = 0.74, P < 0.001), higher than to beta-hCG (r = 0.40, P = 0.034), E2 (r = 0.70, P < 0.001) and P (r = 0.21, P = 0.334), respectively. In the abnormal group 2/2 pregnancies with a twin sac had a GSV within 1 SD of the mean. 3/5 cases of missed abortions or blighted ovum had a GSV < 2 SD of the mean. The interobserver correlation was high (r = 0.99, P < 0.00f2p4This is the first clinical study investigating the diagnostic use of 3-D ultrasound volumetry in first trimester pregnancy.(ABSTRACT TRUNCATED AT 250 WORDS)

Amniotic Fluid↗
PubMed1977

[Faulty mechanics and spinal dysfunction. Investigations of the mechanism in patients with "lumbar syndrome" (author's transl)].

50 patients admitted for lumbago or sciatica are examined for their "static". Radiographs of the lumbar-pelvis-hip-joint region are taken in 2 planes with the patient standing. An oblique pelvis is a certain, a reduced angle of Leger a probable influence of lumbosciatic pain. The high-assimilation-pelvis of Gutmann produces an unfavorable prognosis.

Anthropometry↗
PubMed1976

[Symptomatology in osteoarthrosis of the hip (author's transl)].

The pain symptom is examined in 91 hospitalized patients with osteoarthrosis of the hip. The impaired hipfunction, as determined by hip-rotation is compared to the severity of the arthrosis as determined by X-ray. Elected severe cases are contrasted as to their symptoms with patients suffering from still mild osteoarthrosis of the hip. Both groups consisted only of patients in whom the clinical severity grade conformed with the results of the X-ray. The differences between both groups are worked out.

Biomechanical Phenomena↗
PubMedDate not supplied

Postpartal endomyometritis in a case of unknown tertian malaria.

A 28-year-old woman developed puerperal endomyometritis and tertian malaria simultaneously. She delivered her child by vacuum extraction during week 41 of pregnancy in September 1994. The peripartal period was uneventful. Nine days post partum the patient was readmitted to hospital with fever and pain in the area of the episiotomy. On day 13 post partum a hysterectomy was performed because of suspected abscess-forming endomyometritis. Two days after the hysterectomy the patient developed septic temperatures, which persisted for 10 days. Tertian malaria due to Plasmodium vivax was found to be the cause of fever. The patient had been in Indonesia without anti-malarial prophylaxis in 1991. Two years later she travelled to Ghana, having taken mefloquine as prophylaxis. Malaria was obviously caused by reactivated hypnozoites in the liver, although the patient had never had an episode of fever associated with malaria before. This case proves that tertian malaria may "recur" even without previous manifestation, years after a stay in a region endemic for malaria.

Adult↗
PubMedDate not supplied

[Coccygodynia--a diagnostic and therapeutic problem in orthopedics].

Coccygodynia means a lot of complaints with the most important of them, namely the spontaneous pain in the coccyx, in the top of the coccyx respectively. One can differ posttraumatic coccygodynias from others, which are the symptom of other diseases like lumbar pain, sciatica, tumors in the spinal canal, visceral diseases, that means disturbances in the gynaecologic system. By the mean of 19 predominantly female patients remarkable facts of the history, of the x-ray and clinical findings are listed up and compared in three different groups. To this examination the results of longtime-results of eleven patients who have been operated are united. The resection of the "os coccygis" doesn't seem to be a satisfying possibility to influence coccygodynias caused by traumas for a long time.

Adult↗
PubMedDate not supplied

[Visceral diseases as cause of lumbar syndromes].

30 patients with hepatitis, 50 patients with gynecological diseases, and 100 with urological diseases were investigated with regards to lumbago to find out whether there is a correlation between the internal disease and the signs of low back pain. The patients were compared with a control group of 33 healthy people. The vertebral localisation of the pain and its radiation were investigated and discussed in certain diseases as well as any correlation between lumbago and average age. The various possibilities of pain radiation are described and the importance of the vertebral column as secondary seat of low back pain is pointed out.

Adnexal Diseases↗