The authors would like to thank, within the Yale School of Medicine, Prof. L. Staib, Mr. A. Chakraborty, Ms. L. Zhang, and Mr. D. Dione for various help. Additional thanks are extended to Dr. B. Geiger of for the NUAGES tessellation package, and Dr. E. L. Ritman of the Mayo Clinic for supplying the DSR data.
This work is supported by NIH-NHLBI Grant No. R01HL44803.