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GENITOURINARY TRACT IMAGING Table of Contents   
Year : 2002  |  Volume : 12  |  Issue : 2  |  Page : 245-249
"Doppler determinants of Ovarian malignancy : Experience with 60 patients


Govt. Medical College Nagpur, India

Correspondence Address:
N P Ghonge
Hig 8; Mhada Colony, Near Friend's Colony, Katol Road, Nagpur (Maharashtra)
India
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Present study was based on 'Folkman's theory of neovascularisation' , according to which malignant neoplasms elaborate a factor named Tumor Angiogenesis factor (TAF), which stimulates rapid formation of new capillaries. The study aimed at evaluating the efficacy of Color and Spectral Doppler in diagnosing the ovarian malignancy. In all, 121 patients with adnexal masses were examined over a period of 2 years, out of which 60 patients with neoplastic ovarian tumors were retained as the study subject. Color Doppler showed blood flow in 92.59 percent of malignant tumors in contrast to only 42.24 per cent of benign tumors. Absent blood flow in a solid tumor almost always ruled out the possibility of malignancy. Spectral Doppler helped to assess the nature of the blood vessels picked up on Color Doppler. In the present study. 96.29 per cent of malignant tumors had PI less thsn 0.8 in contrast to only 6.06 per cent of benign tumors. Similarly, 92.59 percent of malignant tumors showed RI less than 0.6 in contrast to only 9.09 per cent of benign tumors. Thus, Color Doppler and Spectral Doppler tremendously increased the reliability in diagnosing a malignant ovarian tumor. Color Doppler served as an important tool to rule out malignancy in solid tumors if they failed to show any intratumoral vascularity. B-Mode USG in combination with Color Doppler and Spectral Doppler is proposed as the first and foremost diagnostic modality in patients with ovarian tumor, so as to establish the definite diagnosis of malignancy early in the course of the disease.


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