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H Shalan

Publications and source records attributed to H Shalan.

15 recordsLinked to original sources
PubMed2000

Can a single serum CA125 assay predict the outcome of threatened abortion?

Earlier work suggested that high levels of CA125 could be detected in the sera of women with threatened abortion. In this study, we used CA125 as a method of anticipating outcome in cases of threatened abortion and compared the results with ultrasonic findings. Three groups of patients were studied.(1) 57 women who threatened to abort, but whose pregnancy continued.(2) 43 women with a threatened abortion, who subsequently aborted, and (3) 50 normal women who had no bleeding in early pregnancy. There was a highly significant increase in serum CA125 in women who aborted compared with the other two groups (P<0.001). The results compared well with conventional ultrasound and serum CA125 may be developed as a cheap, sensitive and specific predictor of outcome in cases of threatened abortion.

Journal Article↗
PubMed1995

Uterine sarcoma: a report of 10 cases studied by transvaginal color and pulsed Doppler sonography.

OBJECTIVE: To evaluate the role of transvaginal color Doppler in differentiating uterine sarcoma from myoma. STUDY DESIGN: A group of 2010 women were examined by transvaginal color Doppler ultrasonography 1 day before planned hysterectomy. Ten cases with uterine sarcoma were analyzed with respect to their color Doppler sonographic patterns and compared with 150 normal and 1850 myomatous uteri. Analysis of variance was used to test the significance among the subgroups. RESULTS: All cases of uterine sarcoma (100%) revealed abnormal tumoral blood vessels. The mean resistance index (RI) of these vessels was 0.37 +/- 0.03, ranging from 0.32 to 0.42, which is statistically significantly lower than that of the normal and myomatous (P < 0.001) uteri. There was no significant difference between RI in the right and left uterine arteries in each separate group; however, there was a decline in these values from normal, through myomatous, to sarcomatous uteri. Using a cutoff point of 0.40 for RI we were able to distinguish between benign and malignant myometrial tumors with a sensitivity of 90.91%, specificity of 99.82%, positive predictive value of 71.43%, and negative predictive value of 99.96%. CONCLUSION: Color Doppler sonography has the potential to distinguish uterine sarcoma from benign uterine lesions.

Adolescent↗
PubMed1994

An attempt to screen asymptomatic women for ovarian and endometrial cancer with transvaginal color and pulsed Doppler sonography.

Several screening procedures have been proposed to detect ovarian and endometrial cancer. However, none of them is sensitive and specific enough to be used in population-based screening programs. During our 5 year long study, 5013 asymptomatic women (44% premenopausal and 56% postmenopausal women) were scanned by transvaginal color and pulsed Doppler ultrasonography in an attempt to detect malignancy. These women had 404 adnexal cysts; 70 had resolved spontaneously on follow-up scans and 18 persisted. Another 316 sonographically benign cysts are still in the procedure of follow-up second scans. Of 5013 women, four women had stage I ovarian carcinoma and six had stage I endometrial carcinoma. There was one false-positive case encountered with an endometrioma. Only 14 women were subjected to major operative intervention; others underwent minor procedures based on the benign scan findings. No medical or surgical complications were reported. Transvaginal color Doppler ultrasonography, a noninvasive procedure, can detect ovarian and endometrial carcinoma in asymptomatic women and may be used as a screening procedure for these diseases.

Endometrial Neoplasms↗
PubMed1993

Stage I ovarian cancer by transvaginal color Doppler sonography: a report of 18 cases.

A total of 18 cases with ovarian carcinoma stage I (15 stage Ia and three stage Ib) were studied retrospectively to evaluate the efficiency of transvaginal color Doppler sonography in detecting the disease in its early stages. Four asymptomatic women (two cases with morphologically normal ovaries, and two with simple unilocular cysts) were found during the screening program. These cases would have been missed without the use of transvaginal color Doppler sonography. One ovary with stage Ia, and another ovary in a case with stage Ib ovarian cancer were missed. These data show the ability of transvaginal color Doppler sonography to detect ovarian cancer as early as stage I even in asymptomatic women as well as in the morphologically normal ovary.

Journal Article↗
PubMed1993

Endometrial carcinoma in postmenopausal women: evaluation by transvaginal color Doppler ultrasonography.

OBJECTIVE: This study was conducted to evaluate the role of transvaginal color Doppler ultrasonography in detecting endometrial carcinoma in postmenopausal women and in evaluating the depth of myometrial invasion and tumor staging. STUDY DESIGN: A group of 750 postmenopausal women were examined by transvaginal color Doppler ultrasonography 1 day before the planned hysterectomy. Histopathologic and blood flow characteristics were evaluated. Analysis of variance was used to test the significance among the subgroups. RESULTS: Thirty-five women had endometrial carcinoma; 32 (91.4%) cases were detected by transvaginal color Doppler ultrasonography. Visualization of abnormal blood flow within the endometrium was 100% in the diagnosed cases with resistance index near or < 0.40, which constituted a statistically significant difference compared with that of endometrial hyperplasia. No flow was detected in normal, atrophic, and in 92% of cases with hyperplastic endometria. The color Doppler ultrasonography depicted 18 of 19 histologically proved cases of myometrial invasion. Three asymptomatic cases were discovered on the basis of morphologic and blood flow patterns. CONCLUSION: Transvaginal color Doppler ultrasonography can depict endometrial carcinoma, even in asymptomatic women, determine the depth of myometrial invasion, and help in tumor staging.

Endometrial Neoplasms↗
PubMed1993

Early detection of endometrial cancer by transvaginal color Doppler.

The present study aimed at evaluating the possibility of using transvaginal color Doppler sonography in early detection of endometrial cancer. This method was performed on 276 patients with uterine tumors before hysterectomy. Neovascularization was detected in 167 (67%) benign masses, while all malignant masses (26) were vascularised. The final diagnosis was made following pathological examination. Tumoral arterial blood flow was detected in all (26) patients with endometrial cancer. The blood flow analysis showed a significantly lower (P < 0.05) resistance index (RI = 0.37 +/- 0.07) in the cases of endometrial cancer than in patients with benign uterine lesions (0.54 +/- 0.09). Central vessels within endometrial carcinoma tended to have lower velocity and impedance compared to peripheral ones. Significant difference in the impedance of uterine artery blood flow, represented with RI between mentioned groups occurred (P < 0.05). There is a downward trend in the uterine artery RI in patients with endometrial cancer (mean RI = 0.64, ranged from 0.53 to 0.72) regarding benign lesions (mean RI 0.74, ranged from 0.64 to 0.82).

Blood Flow Velocity↗
PubMed1993

Transvaginal color Doppler in the assessment of the uteroplacental circulation in normal early pregnancy.

Transvaginal color Doppler investigation of the uteroplacental circulation was performed on 108 pregnant women with normal intrauterine pregnancy. Decline of resistance index (RI) and pulsatility index (PI) and increase of peak systolic velocity (Ps velocity) were found in all segments of the uteroplacental circulation with advancing gestational age. There was a decrease of RI and PI from the uterine artery through its branches: arcuate, radial and spiral arteries. Ps velocities decreased from the uterine, through the arcuate, to the radial arteries, but Ps velocities in the spiral arteries were higher than those in the radial arteries. According to our results RI seems to be more precise in the assessment of the uteroplacental than the PI.

Adolescent↗
PubMed1992

Fallopian tube carcinoma: recent diagnostic approach by color Doppler imaging.

A case of primary adenocarcinoma of the Fallopian tube is presented. The diagnosis was made preoperatively by transvaginal color Doppler imaging. The tumor revealed areas of neovascularization with characteristic low impedance (resistance index, 0.35) and high blood flow velocity (peak systolic velocity, 16.7 cm/s).

Journal Article↗
PubMed1992

Transvaginal ultrasound, color flow, and Doppler waveform of the postmenopausal adnexal mass.

One thousand postmenopausal women were examined prospectively with transvaginal ultrasound. Seven hundred forty-three (74%) were asymptomatic and presented for screening. Data were analyzed to determine the accuracy of this new modality. Eighty-three women had surgery, and 29 malignant neoplasms were found. Color flow was identified in 27 of 29 malignant tumors and 35% of benign masses. A cutoff value of 0.41 for the Doppler resistance index in the feeder vessels had the best discriminatory value; sensitivity and specificity were 96 and 95%, respectively, for separating benign from malignant neoplasms. Positive and negative predictive values were 96 and 95%, respectively. Morphology alone had poor sensitivity, but when combined with Doppler indices, the sensitivity improved to 90% and the positive and negative predictive values were 90 and 96%, respectively. The results of this study suggest that in the postmenopausal ovary, transvaginal B-mode imaging, color flow, and Doppler indices satisfy criteria as tests that may be sensitive and specific enough for application in a screening program.

Adult↗