Splenic Arterial Patterns

A detailed analysis of the angiographic appearance of the splenic artery and its branches has been compiled by reviewing a series of 38 selective celiac arteriograms. Direct measurements from the serialographic films (usually in 2 projections) were tabulated and minimum, maximum and average values for such parameters as diameter at various points, total length and segmental length have been recorded. In addition, a compilation of the origins and incidences of visualization of branches was made and compared with the anatomical findings of Michels. Finally, radiologically estimated circulation times through the splenic bed were determined. Variations of these parameters were wide. For example, the length of the normal splenic artery varied, among patients, from 17.3 to 33 cm; the circulation time varied from 4 to 18 seconds. These variations may serve as a useful background in the evaluation of splenic arterial patterns in the future. The normal angiographic anatomy as well as significant abnormalities of the splenic artery and its branches produced by intrinsic or extrinsic disease, has been described and illustrated.