Alliance HealthCare Services Inc. is a provider of advanced outpatient diagnostic imaging and radiation therapy services. The Company provides radiology and therapeutic services to hospitals and other healthcare providers on a shared-service and full-time service basis. The Company�s radiology services include the use of its imaging systems, technologists to operate the systems, equipment maintenance and upgrades and management of day-to-day shared-service and fixed-site diagnostic imaging operations. The Company operates its radiation oncology business through its wholly owned subsidiary, Alliance Oncology, LLC. The Company�s radiation oncology business offers treatment options, including Conventional beam therapy, three dimensional conformal radiation therapy, Intensity modulated radiation therapy, Image guided radiation therapy, Stereotactic radiosurgery and Stereotactic Body Radiotherapy, Low dose rate brachytherapy and High dose rate brachytherapy.