Radiation Exposure from CT Examinations in Japan

BMC Medical Imaging

Table 2 Number of CT scanners in Gunma prefecture and data collection.

	Number of CT scanners			Estimated annual number of patients
	Total	Data obtained (%)
		Complete data	Scanning protocol & Number of patients *	Mean	Range	Estimated total number
Hospitals	132	63	61	2,571	36 - 23,616	339,393
Clinics	94 **	6	0	1,406	288 - 2,664	132,164
Total	226	69	61			471,557

ISSN: 1471-2342