ALISO VIEJO, Calif., Nov. 1, 2007 (PRIME NEWSWIRE) -- SenoRx, Inc. (Nasdaq:SENO) today announced that it held its third symposium on October 29, 2007 for Contura(tm), its Multi-Lumen Balloon (MLB) Catheter, at the American Society for Therapeutic Radiology and Oncology (ASTRO) Conference in Los Angeles, California.