The present invention relates to the determining of morphometric properties of bodily hollow systems at the natural state or during distension of the organ using a balloon or bag. A method of obtaining morphometric measures of a hollow internal organ is disclosed. The method comprising the steps of introducing from an exteriorly accessible opening of a bodily hollow system a catheter into the hollow system, the catheter being provided with one or more inflatable balloons situated between a proximal end and a distal end of the catheter, subsequently inflating at least one of the balloons in the hollow internal organ at least until the balloon abuts an inner wall of the hollow system and determining at least one morphometric parameter at a level of inflation. Moreover, the invention relates to an apparatus for measurement of morphometric data of a bodily hollow system.
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