Abstract: A method of modelling an external support for a prospective pulmonary autograft attached to patient's heart using an imaging scanner (8), the method comprising: obtaining (100), using the scanner (8), at least one scan of the vasculature of the heart during systole of the heart; processing (102) each scan using a processor (2) to construct a model of the prospective pulmonary autograft; and processing (104) the model of the prospective pulmonary autograft to generate a model of the external support.

Abstract: There is provided a support adapted for location exteriorly of a blood vessel, the support being locatable around the blood vessel and shaped to be in morphological relationship with the blood vessel, in which the support is formed from a settable material and the support is capable of being formed into a tube; and a method of morphometric analysis of a patient's blood vessel using an imaging scanner which method has the steps of: (i) obtaining a diametral cross-sectional image of the blood vessel; (ii) obtaining a pseudo-transverse cross-section image of the blood vessel; and (iii) processing the images from steps (i) and (ii) to construct a morphometric model of the blood vessel.