[A three-dimensional computerized reconstruction of the rectum, anus and surrounding muscles of the rat fetus at the 20th gestation day].
Using fetuses of Wistar/I rats on the 20th gestation day. We designed a three-dimensional computerized reconstruction of the rectum, anus and the surrounding muscles. The tissues were fixed in Bouin's solution sagittally sectioned serially were stained with hematoxylin-eosin. Light microscopic pictures at 40 x magnification were subjected to the analysis using a three-dimensional image processing system, consisting of a drum-scanner, a general purpose computer (Micro VAX II), and a color image processor. The results showed that this system clearly reconstructed the three-dimensional image of the rectum, anus and the surrounding muscles and suggested the presence of the puborectal muscle sling.
Division of Experimental Surgery, Juntendo University School of Medicine, Tokyo, Japan.
S
S
Ichinose
S
S
Kondo
T
T
Tsukada
N
N
Ito
Y
Y
Hirai
N
N
Kuwabara
Y
Y
Ehara
D001003:Anal Canal / Q000033:anatomy & histology*; D000818:Animals; D003196:Computer Graphics; D003867:Depth Perception; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D005865:Gestational Age; D008297:Male; D009132:Muscles / Q000033:anatomy & histology*; D051381:Rats; D011919:Rats, Inbred Strains; D012007:Rectum / Q000033:anatomy & histology*