Publications by authors named "Kiguna Sei Okawa"
Clinical application of photoacoustic imaging for cervical precursor lesion detection.
J Med Ultrason (2001)
October 2024
Article Synopsis
- - Early diagnosis of cervical precursor lesions is crucial for preventing cervical cancer, and while colposcopy is commonly used, it has low accuracy and consistency, prompting the exploration of alternative diagnostic techniques.
- - This study investigated the use of photoacoustic (PA) imaging to enhance early detection of severe cervical lesions by examining 21 surgical patients and 114 outpatients at a colposcopy clinic, assessing PA findings against pathological results.
- - Results showed that PA imaging effectively identified dense angiogenesis in severe lesions, leading to a high detection rate (positive predictive value of 84.5% and negative predictive value of 82.1%), suggesting it could improve the accuracy of cervical cancer diagnostics.
Introduction: Ensuring adequate fetal oxygenation is an essential aim of fetal monitoring. The purpose of this study was to establish a basic technique for real-time measurement of blood oxygen saturation of the placenta by photoacoustic (PA) technique as a new fetal monitoring method.
Methods: The hypoxia model established in our previous study was applied to 7 pregnant rabbits.
Omphalocele is rarely complicated by umbilical cord cysts. In our case, an umbilical cord cyst and fetal ascites were detected at 26 weeks' gestation in a fetus with trisomy 13. This changed to omphalocele with subsequently absorbed fetal ascites at 35 weeks' gestation.
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