Transvaginal ultrasound in the assessment of bladder volumes in women. Preliminary report.
Transvaginal linear array ultrasound is described as a method of measuring bladder volumes in the range 2 to 175 ml, overcoming the limitations of abdominal ultrasound at these smaller (though clinically important) volumes. The mean error over the range 10 to 175 ml was 23%. Statistical analysis of preliminary data obtained by this technique shows that bladder volume in ml can be calculated by the formula: Volume = 5.9 x (height x depth) - 14.6 ml (95% confidence limits = +/- 37 ml)
Haylen
B T
BT
Department of Obstetrics and Gynaecology, Royal Liverpool Hospital, Merseyside.
Frazer
M I
MI
Sutherst
J R
JR
West
C R
CR
D005260:Female; D006801:Humans; D014463:Ultrasonography / Q000379:methods*; D001743:Urinary Bladder / Q000473:pathology*; D014556:Urine; D014621:Vagina