Showing 3 results for Mowla
Mowlavi A A,
Volume 65, Issue 3 (2 2007)
Abstract
Background: Accurate computation of the radiation dose to the breast is essential to mammography. Various the thicknesses of breast, the composition of the breast tissue and other variables affect the optimal breast dose. Furthermore, the glandular fraction, which refers to the composition of the breasts, as partitioned between radiation-sensitive glandular tissue and the adipose tissue, also has an effect on this calculation. Fatty or fibrous breasts would have a lower value for the glandular fraction than dense breasts. Breast tissue composed of half glandular and half adipose tissue would have a glandular fraction in between that of fatty and dense breasts. Therefore, the use of a computational code for average glandular dose calculation in mammography is a more effective means of estimating the dose of radiation, and is accurate and fast.
Methods: In the present work, the Sobol-Wu beam quality parameters are used to write a FORTRAN code for glandular dose calculation in molybdenum anode-molybdenum filter (Mo-Mo), molybdenum anode-rhodium filter (Mo-Rh) and rhodium anode-rhodium filter (Rh-Rh) target-filter combinations in mammograms. The input parameters of code are: tube voltage in kV, half-value layer (HVL) of the incident x-ray spectrum in mm, breast thickness in cm (d), and glandular tissue fraction (g).
Results: The average glandular dose (AGD) variation against the voltage of the mammogram X-ray tube for d = 4 cm, HVL = 0.34 mm Al and g=0.5 for the three filter-target combinations, as well as its variation against the glandular fraction of breast tissue for kV=25, HVL=0.34, and d=4 cm has been calculated. The results related to the average glandular absorbed dose variation against HVL for kV = 28, d=4 cm and g= 0.6 are also presented. The results of this code are in good agreement with those previously reported in the literature.
Conclusion: The code developed in this study calculates the glandular dose quickly, and it is complete and accurate. Furthermore, it is user friendly and useful for dose optimizing in mammography imaging.
Mowla K, Zakerkish M, Samarbafzadeh A, Moravej Aleali A,
Volume 68, Issue 2 (5 2010)
Abstract
Background: Behcet’s disease (BD) is a multisystemic inflammatory disease with unknown origin characterized by recurrent oral aphtous ulcers, genital, ocular and skin lesions. A single point mutation 1691G to A in the factor V gene increases the risk of venous thrombosis. This study designed to determine factor V Leiden mutation in Behcet’s disease, and to find out it's relationship with the clinical manifestations in Khuzestan province, Iran.
Methods: One hundred patients with Behcet's Disease (44 males and 56 females) based on international diagnostic criteria and 70 healthy subjects were included in the study.Patients and controls were tested for the presence of factor V Leiden mutation using polymerase chain reaction method.
Results: The prevalence of factor V Leiden mutation was significantly higher in BD (10 out of 100, 10%) compared with healthy control subjects (1 out of 70, 1.4%), (p=0.025).
Vascular lesions in this study were deep vein thrombosis (DVT) (7%), subcutaneous thrombophlebitis (5%), stroke (1%) and retinal vasculitis (39%). It was found that there was no association between venous thrombosis and the factor V Leiden mutation in Khuzestanian patients. Also, no association between other vascular lesions and the factor V Leiden mutation was recognized. On the other hand there was a significant association between DVT and anterior uveitis (p=0.033).
Conclusion: In this study we did not find any association between clinical manifestations in BD patients and factor V Leiden mutation in Khuzestan province, Iran
but in BD patients with DVT, factor V Leiden mutation might be a risk factor for the development of anterior uveitis.
Elham Rajaei , Amin Hessam, Karim Mowla , Zeinab Deris Zayeri ,
Volume 77, Issue 9 (December 2019)
Abstract
Background: Systemic sclerosis (SSc) is an autoimmune connective tissue disease characterized by vasculopathy and excessive collagen deposition in the skin and internal organs. Based on the skin damage we divide the patients into two groups: limited and diffuse SSc. In restricted type, the thickness of the skin is limited in the face and distal parts of the elbows and knees, with less involvement of internal organs, whereas in diffuse type, facial skin, organs, and trunk generally increase in thickness and internal visceral involvement is noticeable as renal failure, pulmonary artery pressure, and interstitial lung fibrosis. According to the prevalence studies, the prevalence of systemic sclerosis is estimated to be 15 cases per 100,000, of which the prevalence in women is 3 times more than men. Based on clinical evidence the prevalence of SSc is high in Khuzestan province. The aim of this article was to evaluate the demographic features of SSc in Khuzestan province, Iran.
Methods: This cross-sectional study conducted on two hundred SSc patients referred to Rheumatology Clinic of the Golestan University Hospital in Iran, from 2001 to 2015. Patients were selected based on the American College of Rheumatology classification criteria for SSc and were divided into diffuse and restricted types based on the site of skin involvement. Individual characteristics and clinical symptoms were extracted from the information in the patient records which were carefully compiled by physicians. Data on age, sex, race, duration of illness, and family history of SSc were collected orally.
Results: 91.5% of the enrolled patients were female. The mean age was 44 years and the most common race in our study was Lor. The prevalence of the diffuse form of SSc was 68% and the limited form was 32%. The Raynaud's phenomenon was detected in 100% of patients. Sclerodactyly and interstitial lung disease were found in 88.5% and 54.5% of patients respectively. Laboratory features such as ANA (93%), Anti-Scl-70 (77.5%) and anti-centromere antibody (ACA) (70%) of SSc patients were reported.
Conclusion: According to the results of this article, the most systemic sclerosis patients in Khuzestan province were middle-aged Lor race females and the most common type was diffuse systemic sclerosis.
