@article{oai:niigata-u.repo.nii.ac.jp:00020807,
 author = {石田, 道雄},
 issue = {8},
 journal = {新潟医学会雑誌, 新潟医学会雑誌},
 month = {Aug},
 note = {Kidneys and urinary tracts are the treasure houses of congenital malformations, and many of them can be found by ultrasonography before delivery. Then, it is important for us to pay attention to these organs on ultrasonographic examination. Fetal kidneys can be identified after 14～15 weeks gestation and fetal bladder can be identified after 12～13 weeks gestation. Normal ureters commonly cannot be observed on ultrasonographic examination. The points of the examination are as follows. (1) Is the amount of the ammiotic fruid normal? (2) Can the kidneys and bladder be identified? (3) Are there dilatations of the ureters and bladder? (4) Are there abnormal findings of the other organs?},
 pages = {697--699},
 title = {1) 腎・尿路奇形の出生前診断(シンポジウム 腎・尿路奇形の医療, 修正医学の進歩, 第462回新潟医学会)},
 volume = {106},
 year = {1992}
}