Gastrointestinal
Rectosigmoid index
>1
Barium enema
In an appropriate clinical setting, a value <1 (or <0.9 in some references), it is suggestive of Hirschsprung disease. |
Reference
Pochaczevsky R, Leonidas JC. The "recto-sigmoid index". A measurement for the early diagnosis of Hirschsprung's disease. Am J Roentgenol Radium Ther Nucl Med. 1975;123 (4): 770-7.
ISBN: 1167291