Effect of perfusion and blood content on ultrasonic backscattering of liver tissue

Hiroshi Kimitsuki, Richard E. Parsons, Bernard Sigel, Ernest J. Feleppa, Robert M. Golub, Jeffery Justin, Junji Machi, Mary Rorke, Joan Sokil-Melgar, Issei Kodama, Toshihiko Kurohiji, Teruo Kakegawa, Howard A. Zaren