NASI North American Scientific (MM)

North American Scientific, Inc. (Nasdaq:NASI) announced today that it will present at The New York Society of Security Analysts (NYSSA) 2007 Medical Equipment & Supplies Industry Conference on Tuesday, June 12, 2007 at NYSSA�s headquarters on 1177 Avenue of the Americas in New York. President and CEO John Rush, who joined North American Scientific in April 2007, will present the Company�s business strategies and market opportunities at 10:00 a.m. Eastern Time. North American Scientific will offer a live audio webcast of its presentation, which may be accessed through the Company�s website at www.nasmedical.com. An archived replay will also be available on the Company�s website shortly after the live presentation, and will be available for one year. About North American Scientific North American Scientific is a leader in radiation therapy products and services in the fight against cancer. Its innovative products provide physicians with tools for the treatment of various types of cancers. They include Prospera� brachytherapy seeds and SurTRAK� needles and strands used primarily in the treatment of prostate cancer. In addition the Company plans to commercialize its ClearPath� multi-channel catheter breast brachytherapy devices in 2007, which are the only devices approved for both high dose and continuous release, or low dose, radiation treatments. The devices are designed to provide flexible, precise dose conformance and an innovative delivery system that is intended to offer the more advanced form of brachytherapy for the treatment of breast cancer. North American Scientific�s NOMOS� Radiation Oncology Division provides external beam radiation therapy products for Serial Tomotherapy Intensity Modulated Radiation Therapy (IMRT) and Image-Guided Radiation Therapy (IGRT). Serial tomotherapy IMRT allows an escalated radiation dose to be delivered to a tumor while limiting exposure and damage to nearby healthy tissue. These products are marketed under the trade names nomosSTAT�and CORVUS� (our proprietary treatment planning software). The Company's IGRT products, BAT�, BATCAM� and nTRAK�, provide fast and accurate targeting and localization of a treatment volume on a daily basis. More than 500 hospitals and research sites worldwide are equipped with the Company's clinically proven serial tomotherapy, inverse treatment planning, image-guidance and ancillary treatment solutions. Please visit www.nasmedical.com for more information.