Radiology provider RadNet Inc. has inked a new hospital joint venture partnership and plans to “materially” expand another existing one, leaders announced. Both deals are with Cedars-Sinai, a nonprofit academic healthcare organization based in California. RadNet and the hospital are launching a new JV called Los Angeles Imaging Group (where both organizations are based), which will initially have three locations. Plus, the already-established Santa Monica Imaging Group is adding seven more centers, five of which will be contributed by Cedars-Sinai. Altogether, RadNet now boasts a network of 366 owned or operated outpatient imaging centers spanning Arizona, California, Delaware, Florida, Maryland, New Jersey and New York.