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Abstract: Background: According to reports, the nurses frequently and directly are faced with the deaths, suffering and pain, thus a major mechanism for administrators is empowering of staff. With this approach, the object of study was examining the role of ethical leadership at promote nurses' psychological empowerment. Material and Methods: Considering the purpose of this study, it was applied & considering the data collection methods, it was descriptive –analytical. Statistical population was nurses in working in Sanandaj public hospitals (410 people) and 148 subjects were selected using random sampling. Data gathering tools were two questionnaires: Ethical Leadership (Salehnia: 2012) and psychological empowerment Questionnaire (Wooten & Cameron, 1998). Data analysis was performed by SPSS (Version 16) and Confirmatory Factor Analysis, Pearson correlation test and Multiple Regression (Method: Enter). Results: Results showed that the items of questionnaires can be reduced to the fundamental dimensions. Results also showed that there was a significant relationship between ethical leadership and psychological empowerment. Finally, it was found that components of Pattern and Pragmatism are predictive of psychological empowerment. Conclusion: According to study findings, hospital Administrators can by display appropriate ethical behaviors and efforts to strengthen interpersonal relationships and encourage such behaviors among members provide Contexts improving nurses' Psychological Empowerment

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Background: Regarding to the importance of controlling health care expenditure, necessity for proper distribution of health care resources and appropriate utilization of hospital resources through inappropriate services reduction for patients, this study aimed to assess suitability of brain CT scans, based on American College of Radiologists (ACR) appropriateness criteria in Shahid Beheshti Hospital affiliated to Kashan University of Medical Sciences (KAUMS).

Materials and Methods: This cross sectional and retrospective study was conducted in internal and surgery triage unites of an academic hospital in KAUMS to determine the appropriateness of brain CT scans. A General physician reviewed 361 medical records of patients through the check list based on ACR appropriateness criteria. Collected data was classified in three areas including appropriate, possibly appropriate and inappropriate. Data was analyzed using SPSS through descriptive statistics such as Index of dispersion  and chi-square test.

Results: Study findings revealed that among delivered CT scans, 310 (85.9%) appropriate, 38(10.5%) possibly appropriate and 13(3.6%) were inappropriate. The maximum and the minimum inappropriate brain CT scans rate 4 (4.17 %) were related to patients with Ataxia and zero (0 %) were related to patients with Headache, respectively.

Conclusion: Based on ACR appropriateness criteria, Brain CT scans were not utilized appropriately. In order to depict utilization review of radiology procedure in Iran, Developing a national guideline is necessary. To detect the effective factors regarding formulating targeted intervention, more comprehensive studies in various hospitals, different specialty and radiology modality seems necessary.