title: An evaluation of the use of texture measurements for the tissue characterisation of ultrasonic images of in vivo human placentae.
abstract: A means of correcting for the depth dependence of co-occurrence features derived from ultrasonic images of the in vivo human placenta was derived. The corrected features were used to characterise the texture of the images. The features were found to correlate with a subjective assessment of the texture (p less than 0.001). Significant differences (p less than 0.05) between the placentae of smokers and nonsmokers at gestational ages 28 to 35 weeks were demonstrated. Also in this period, differences between patients who were normotensive and patients who became hypertensive were shown (p less than 0.05 for smokers, p less than 0.01 for nonsmokers).
mesh_terms: D000465:Algorithms; D005069:Evaluation Studies as Topic; D005260:Female; D005865:Gestational Age; D006801:Humans; D006973:Hypertension / Q000150:complications; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D010920:Placenta / Q000033:anatomy & histology* / Q000473:pathology; D011247:Pregnancy; D011248:Pregnancy Complications; D011249:Pregnancy Complications, Cardiovascular; D012907:Smoking / Q000009:adverse effects; D014463:Ultrasonography