50.DICOM is implemented in almost every radiology,cardiology imaging and radiotherapy device X-ray,CT,MRI, ultrasound, ete.and increasingly in devices in other medical domains such as ophthalmology and dentistry.

37.The powerful magnetic flied of the MR system will attract iron-containing (also known as ferromagnetic) objects.

7.The conditions include body size,tube voltage,tube current,exposure time,pitch,reconstruction algorithm,and so on.

40.A contrast agent calld gadolinium may be injected into a vein to help obtain clearer picture of the area being examined.

17.DSA ,based on flat panel detector, not only has the advantage of good image resolution, but also decreases the radiation dose received by patients and physicians.

51.Addresses the semantics of file services, file formats and infornation drectories ncessary for off-line communication.

31.Magnetic fields can be produced either by electromagnets or by permanent magnets .

46.Depending on the facility's workflow, most modalities send images to a quality assurance workstation or sometimes called a PACS gateway.

45.System integration and clinical implementation are two other neessary components during the implementation after the system is physically connected.

47.The client fills in the C-FIND request message with the keys that should be matched. E.g. the patient ID.