مجله علوم پیراپزشکی و بهداشت نظامی
سال دوازدهم شماره 2 (پیاپی 24، تابستان 1396)

Digital Subtraction Angiography (DSA) is the standard method for detection of carotid artery stenosis. This technique has high radiation dose. With the progress of imaging techniques, noninvasive or minimally invasive methods like the CT angiography, MR angiography and ultrasonography with Doppler or Duplex mode were applicable. This study aimed to evaluate and assesse the results of Doppler ultrasonography in comparison with the DSA in diagnosis of internal carotid artery.
Methods and Materials: 20 male patients with internal carotid stenosis > 50% who previously underwent the DSA examination, were examined with the Doppler ultrasonography. Obtained Structural and hemodynamic parameters from Doppler ultrasonography were analyzed regarding to German Society of Ultrasound in medicine and NASCET recommendations. The degrees of carotid stenosis resulted from the Doppler ultrasonography were evaluated and compared with the DSA results.
Doppler and DSA findings did not show significant differences (PDiscussion and The Doppler ultrasonography had high precision, sensitivity and specificity in our study. This method can be used as a noninvasive and easy to use technique in detection and determination of this disease especially in patients who don’t need angioplasty procedures.

In nuclear medicine, the demand for a variety of radionuclides is rising every day. Radionuclides radiation doses to patients and staff are of high importance and it should be monitored and controlled in medical imaging centers. This study aimed to evaluate the safety principles in the Hegmataneh Gamma scan nuclear medicine center in Hamadan.
Methods and Materials: Dose rate measurement was noted in different regions of nuclear medicine center in 30 consecutive days at the end of each work shift. Moreover, the mean of dose rates were measured and noted in different rooms.
The results indicated that the maximum and minimum dose rates of any work shift were 1.67 μSv/h and 0.13 μSv/h for hot lab and control rooms, respectively.
Discussion and The measurements show that the principles of radiation protection at Hegmataneh Gamma Scan center are confirmed in terms of quality and quantity. In addition, it is confirmed with International Committee of Radiation Protection (ICRP).

Mycoplasmas are one of the most serious contaminants of cellular cultures and their biological productions. Mycoplasma diagnosis is conducted on the basis of culture and molecular methods. These methods are different from each other in terms of accuracy, reliability, and sensitivity. This study aimed to trace the mycoplasma contaminations in culture samples using 16S rRNA specific primers based on the PCR method.
Methods and Materials: 16S rRNA gene sequence of cell culture contaminant mycoplasmas were extracted from gen bank and were sorted using gene sequence pattern. Specific primers were designed using obtained synonymies. To build positive control structure, 16S rRNA gene proliferated based on the PCR methods then cloned in a plasmid vector.
Electrophorus of PCR product of 16S rRNA revealed a band of 219bp length on Agarose gel. This pattern was not observed in negative control samples. Moreover, the fragment proliferation with the same size in recombinant plasmid confirmed the authenticity of cloning.
Discussion and Due to its high speed and accuracy, the method has potential for using in cell culture laboratories.

Nowadays, many workforces are lost because of chronic low back pain. This costs a lot to both individual and government. Sport therapy is one of the most important programs of these patients. Therefore, this study aimed to compare isotonic exercises and massage therapy on pain intensity and disability in men with chronic low back pain.
Methods and Materials: 30 men patients with chronic low back pain were participated in this study. Their ages were between 20 to 30 and they came from Bojnoord. They were randomly assigned to two groups of isotonic exercises and massage therapy. The treatment was conducted for 8 weeks and each week contained 3 sessions. Data were collected through Ostwestry questionnaire used before and after the treatment. Data were analyzed through ANOVA test at the significant level of P In the pretest, the mean score of pain severity and disability were 5.60±0.837 and 24.93±5.28 of isotonic exercises group respectively. In the posttest, the means score of them were equal to 4.52±0.679 and 14.43±3.96 respectively. In the pretest, the mean rank of pain severity and disability were 5.40±1.666 and 22.156±3.45 of massage group, respectively. In the posttest means score of them were equal to 3.00±1.118 and 15.40±4.10 respectively. There were statistically significant differences between the mean scores of both groups.
Discussion and The findings indicated that both massage therapy and isotonic exercise caused the pain reduction in patients with chronic back pain. However, massage had a better effect on pain reduction than isotonic exercise.

The concept which can be deduced from productivity is the proportion of output to input in a system. Productivity and factors affecting it are managers concern in manufacturing and service sectors. Worker status is a great challenge to improve the productivity and efficiency of hospitals. In this study, the proficiency of surgical technologist has been assessed in the Hospital of Iran University of Medical Sciences.
Methods and Materials: This cross-sectional study performed on 127 surgical technologist staff in educational hospitals of Iran University of medical sciences. Data were collected through demographic questionnaire and Hersey Goldsmit questionnaire. Data were analyzed through descriptive statistics such as frequency distribution tables, graph, and calculating numerical analysis by SPSS software.
Based on the results, labor proficiency was investigated in 7 dimensions. The mean of ability dimension was 9.64, understanding and structure dimension was 8.04, organizational support dimension was 8.9, incentive dimension was 9.2, feedback dimension was 12.36, validity dimension was 10.55, and compatibility dimension was 8.55. Moreover, the total mean for productivity was 69.71 (SD=15.72).
Discussion and The results reveal that the level of staff proficiency is low (69.71 from 130). Regarding lack of attention to the organizational productivity, it seems to need more attention in this area.