The diagnosis of Morton neuroma at MR imaging may be relevant only when the transverse diameter is 5 mm or more and can be correlated to clinical findings. Fluid collections in the first three intermetatarsal bursae with a transverse diameter of 3 mm or less can be considered physiologic.

MR imaging has a major effect on diagnostic thinking and therapeutic decisions by orthopedic surgeons when Morton neuroma is suspected, especially because MR imaging helps in localization and size assessment of Morton neuromas.

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The purpose of this project was to employ quality management methods in order to decrease throughput times for orthopedic outpatients sent to the department of radiology. The following intervals were measured at the onset of the study and after 6 and 12 months: (a) between arrivals at outpatient clinic and radiology counter; (b) between arrival at radiology counter and time of last radiograph; and (c) between time of last radiograph and radiology report printing time. After the initial measurement, numerous changes were initiated both in radiology and in orthopedic surgery. The mean interval between arrival at the outpatient clinic and in radiology decreased by one third from 60 min during the first measurement to 40 (p < 0.001) and 41 min during the second and third measurement. The proportion of patients with total radiology times of more than 30 min decreased from 41 to 29 % between the first and third measurements (p < 0.001). The corresponding results for radiology times of more than 45 min were 17 and 11 % (p = 0.03). A standard type of quality management program can be employed successfully in order to reduce radiology throughput times for orthopedic outpatients.

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