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Article ; Online: Evaluation of Quality-Physical Requirements of Digital Mammography Facilities and Providing Improvement Strategies in Isfahan City, Iran

Mitra Momenzade / Elham Moazam / Mehri Sirous / Asghar Bakrani

مدیریت اطلاعات سلامت, Vol 0, Iss 0, Pp 51-

2019 Volume 56

Abstract: Introduction: Mammography is the cornerstone of breast cancer screening and early detection. This study was conducted to investigate the status of digital mammography facilities in Isfahan City, Iran, in terms of equipment and physical-quality ... ...

Abstract	Introduction: Mammography is the cornerstone of breast cancer screening and early detection. This study was conducted to investigate the status of digital mammography facilities in Isfahan City, Iran, in terms of equipment and physical-quality requirements, to offer solutions to improve the current situation. Methods: In this descriptive study, all 15 active digital mammography facilities (DMF) in Isfahan City were visited by a medical physicist. Data were collected using a researcher-made checklist including 40 items and topics of calibration, general condition of equipment, dosimetry, quality of images, and printers. Instructions and quality control reports of devices were evaluated and compared with the guidelines of Atomic Energy Organization of Iran (AEOI). Results: All the DMFs passed the standards of AEOI. The most important problem was that in majority of DMFs, the diagnosis room was not equipped with standard medical monitors or these monitors were not utilized. The differences between evaluated resolution measures of the device with results reported by quality control companies, lack of attention to expiration dates of received films by operator, lack of phantom for periodic calibration by operator, lack of attention to mean glandular dose and surface dose indicator, and printing four images on one film were the other observed problems. Conclusion: It is recommended to pay more attention to installation and operational standards of the equipment and conduct periodic surveys of DMFs. Moreover, equipping the centers with the diagnostic rooms is essential. Although all the medical imaging centers are obliged to conduct annual quality control tests on their equipment by qualified companies, investigating DMFs revealed that these quality control tests are not sufficient.
Keywords	Equipment and Supplies ; Mammography ; Breast Neoplasms ; Iran ; Computer applications to medicine. Medical informatics ; R858-859.7
Subject code	600
Language	Persian
Publishing date	2019-07-01T00:00:00Z
Publisher	Vesnu Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Investigating the Frequency Distribution of Breast Imaging Reporting and Data System (BIRADS) Classification and its Changes in Mammographic Findings in a Private Center in Isfahan City, Iran, during the Years 2010 to 2014

Mehri Sirous / Amirmasoud Airours / Parisa Sotoodeh-Shahnani

مجله دانشکده پزشکی اصفهان, Vol 36, Iss 470, Pp 184-

2018 Volume 188

Abstract: Background: Cancer screening and timely cancer diagnosis is of the effective ways to reduce mortality rates and treatment costs. Therefore, the present research intended to take an effectual step in early diagnosis of breast cancer, in knowledge level ... ...

Abstract	Background: Cancer screening and timely cancer diagnosis is of the effective ways to reduce mortality rates and treatment costs. Therefore, the present research intended to take an effectual step in early diagnosis of breast cancer, in knowledge level enhancement regarding the importance of carrying out mammograms, and in provision of physical healthcare to people through prevention of cancer by determining frequencies of malignant breast cancers in mammographic X-ray examinations and prevalence rate of breast cancer in Isfahan Province, Iran. Methods: This descriptive-cross-sectional study was conducted at a private imaging center in Isfahan City, in years 2016-2017. The statistical population was mammography reports present at the center for the period of 2010-2014. The researcher visited the unit responsible for file and electronic archives of this center and extracted mammography information related to 924 patients. This information concerned mammography study of both breasts using the mediolateral and craniocaudal views. The mammograms were interpreted by an expert radiologist and were classified based on the Breast Imaging Reporting and Data System (BIRADS) classification. Findings: There was no significant relationship between the age and BIRADS class (P > 0.050), but a significant relationship was observed between breast tissue density and this classification system (P < 0.050). Moreover, there was a relationship between mammographic findings such as architectural distortion and BIRADS class (P < 0.050). Conclusion: Classifying mammographic findings in BIRADS is useful in predicting malignancy.
Keywords	Breast cancer ; Mammography ; Digital breast tomosynthesis ; Medicine ; R ; Medicine (General) ; R5-920
Subject code	616
Language	Persian
Publishing date	2018-05-01T00:00:00Z
Publisher	Vesnu Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Investigation of Frequency Distribution of Breast Imaging Reporting and Data System (BIRADS) Classification and Epidemiological Factors Related to Breast Cancer in Iran

Mehri Sirous / Parisa Sotoodeh Shahnani / Amirmasoud Sirous

Advanced Biomedical Research, Vol 7, Iss 1, Pp 56-

A 7-year Study (2010–2016)

2018 Volume 56

Abstract: Background: The first cause of women mortality due to cancer is breast cancer. Mammography plays a central part in early detection of breast cancers. The screening methods can play a major role to reduce the morbidity and mortality rate due to this ... ...

Abstract	Background: The first cause of women mortality due to cancer is breast cancer. Mammography plays a central part in early detection of breast cancers. The screening methods can play a major role to reduce the morbidity and mortality rate due to this malignancy. We sought the basic data in this study on our population because knowing about the baseline data is apt and vital. Materials and Methods: In this study, data were collected from a questionnaire, contained baseline bio data information, and mammographic imaging of the patients came during 7 years. Breast imaging reporting and data system (BIRADS) score, breast composition, presence of axillary lymph nodes, microcalcifications, and other incidental positive findings were determined by a radiologist and analysis was performed by SPSS package. Results: The most common indication for mammography was annual screening. The mean age of participants to the study was 55 ± 7.9 years. The majority (80%) of the patients with known breast cancer (BIRADS 6) had the extremely dense breast. The most common incidental findings in mammogram studies were focal asymmetry, architectural distortion, intramammary lymph node and accessory breasts, respectively. Conclusion: The frequency distribution of BIRADS classification in our society was clarified. It seems that the breast cancer risk is higher in women with dense breasts. Architectural distortion was also correlated to BIRADS score.
Keywords	Breast cancer ; breast imaging reporting and data system ; mammography ; BIRADS ; Medicine ; R ; Biology (General) ; QH301-705.5
Subject code	616
Language	English
Publishing date	2018-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Distributive Frequency of Abnormal Mammographic Findings in Local Mammography and Comparison with Standard Mammography in a Private Center in Iran

Mehri Sirous / Nasim Shabani / Parisa Sotoodeh-Shahnani

مجله دانشکده پزشکی اصفهان, Vol 35, Iss 449, Pp 1315-

A 6-Year Study

2017 Volume 1320

Abstract: Background: First cause of women mortality due to cancer in worldwide is breast cancer. Approximately, 180000 new cases of breast cancer are diagnosed each year in the United States of America. In Iran, breast cancer affects women at least one decade ... ...

Abstract	Background: First cause of women mortality due to cancer in worldwide is breast cancer. Approximately, 180000 new cases of breast cancer are diagnosed each year in the United States of America. In Iran, breast cancer affects women at least one decade younger than their counterparts in developed countries. In recent decades, mammography is the first method used in screening and early detection of breast cancer. Methods: This cross-sectional study was done between 2010 and 2015 in a private mammography center in Isfahan City, Iran. All patients came for at least one mammography. During 6 years, of 1015 patients who came for standard mammography, 226 had the criteria to enter the study. We recommended local mammography for them. Findings: The patients' age ranged from 36 to 71 years with a mean age of 47.0 ± 6.9 years. We found that the most positive finding in standard mammography that we referred for local mammography was focal asymmetry and the least was spiculated mass. Positive findings of microcalcification and spiculated mass had more prevalence with increasing age. Conclusion: In comparison between standard mammography and local mammography, specificity of standard mammography was low for positive finding of focal asymmetry and was high for microcalcification. If we can decrease the requests for local mammography in focal asymmetry, the specificity of local mammography in screening and early detection of breast cancer will increase.
Keywords	Breast tumors ; Mammography ; Screening ; Medicine ; R ; Medicine (General) ; R5-920
Subject code	616
Language	Persian
Publishing date	2017-12-01T00:00:00Z
Publisher	Vesnu Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A CASE REPORT OF GORLIN-GOLTZ SYNDROME AS A RARE HEREDITARY DISORDER

Nazila Tayari / Mehri Sirous

Iranian Journal of Radiology, Vol 9, Iss Supplement1, Pp 47-

2012 Volume 47

Abstract: Gorlin-Goltz syndrome is an autosomal dominant,rare hereditary disease. Diagnosis of this syndrome is based on major and minor criteria. We report a Gorlin-Goltz syndrome in a 25-year-old man, who presented with progressive pain of the maxilla and ... ...

Abstract	Gorlin-Goltz syndrome is an autosomal dominant,rare hereditary disease. Diagnosis of this syndrome is based on major and minor criteria. We report a Gorlin-Goltz syndrome in a 25-year-old man, who presented with progressive pain of the maxilla and mandible over 5 years. The pain was diffuse and compatible with expansile cyst in the alveolar ridges on panoramic radiography. In physical examination, he had a coarse face and prognathism.Computer tomography of the face revealed two expansile maxillary and one mandibular cyst. Calcification of the entire length of the falx and tentorium were detected in bone window.
Keywords	Medical physics. Medical radiology. Nuclear medicine ; R895-920 ; Medicine (General) ; R5-920 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
Language	English
Publishing date	2012-05-01T00:00:00Z
Publisher	Kowsar Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Sclerotic changes on plain X-ray led to early diagnosis and successful treatment of primary lymphoma of iliac bone

Mehri Sirous / Mohammad Momeni / Mohammad Mahdavi

Journal of Research in Medical Sciences, Vol 20, Iss 6, Pp 625-

2015 Volume 626

Keywords	Medicine ; R
Language	English
Publishing date	2015-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A case report of Gorlin-Goltz syndrome as a rare hereditary disorder

Mehri Sirous / Nazila Tayari

Journal of Research in Medical Sciences, Vol 16, Iss 6, Pp 836-

2011 Volume 840

Abstract: Gorlin-Goltz syndrome is an autosomal dominant and a rare hereditary disease. Diagnosis of this syndrome is based on major and minor criteria. We report a Gorlin-Goltz syndrome in a 25-year-old male who was presented with progressive pain of maxilla and ... ...

Abstract	Gorlin-Goltz syndrome is an autosomal dominant and a rare hereditary disease. Diagnosis of this syndrome is based on major and minor criteria. We report a Gorlin-Goltz syndrome in a 25-year-old male who was presented with progressive pain of maxilla and mandible over 5 years. The pain was diffuse and compatible with expansile cyst in alveolar ridges on panoramic radiography. In physical examination, he had coarse face and prognathism. Computer tomography of face revealed two expansile maxillary and one mandibular cyst. Calcification of entire length in falx and tentorium were detected in bone window.
Keywords	Keratogenic Cyst ; Falx ; Tentorium ; Gorlin-Goltz Syndrome ; Medicine ; R
Language	English
Publishing date	2011-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Contrast Enhancement of Mammograms for Rapid Detection of Microcalcification Clusters

Hajar Moradmand / Saeed Setayeshi / Alireza Karimian / Mehri Sirous

Iranian Journal of Medical Physics, Vol 11, Iss 2.3, Pp 260-

2014 Volume 269

Abstract: Introduction Breast cancer is one of the most common types of cancer among women. Early detection of breast cancer is the key to reducing the associated mortality rate. The presence of microcalcifications clusters (MCCs) is one of the earliest signs of ... ...

Abstract	Introduction Breast cancer is one of the most common types of cancer among women. Early detection of breast cancer is the key to reducing the associated mortality rate. The presence of microcalcifications clusters (MCCs) is one of the earliest signs of breast cancer. Due to poor imaging contrast of mammograms and noise contamination, radiologists may overlook some diagnostic signs, specially the presence of MCCs. In order to improve cancer detection, image enhancement methods are often used to aid radiologists. In this paper, a new enhancement method was presented for the accurate and early detection of MCCs in mammograms. Materials and Methods The proposed system consisted of four main steps including: 1) image scaling;2) breast region segmentation;3) noise cancellation using a filter, which is sensitive to MCCs; and 4) contrast enhancement of mammograms using Contrast-Limited Adaptive Histogram Equalization (CLAHE) and wavelet transform. To evaluate this method, 120 clinical mammograms were used. Results To evaluate the performance of the image enhancement algorithm, contrast improvement index (CII) was used. The proposed enhancement method in this research achieved the highest CII in comparison with other methods applied in this study. The Validity of the results was confirmed by an expert radiologist through visual inspection. Conclusion Detection of MCCs significantly improved in contrast-enhanced mammograms. The proposed method could be helpful for radiologists to easily detect MCCs; it could also decrease the number of biopsies and reduce the frequency of clinical misdiagnosis. Moreover, it could be useful prior to segmentation or classification stages.
Keywords	Breast Cancer ; Image Enhancement ; Wavelet Transform ; Medical physics. Medical radiology. Nuclear medicine ; R895-920 ; Medicine (General) ; R5-920 ; Medicine ; R
Subject code	610
Language	English
Publishing date	2014-08-01T00:00:00Z
Publisher	Mashhad University of Medical Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Contrast Enhancement of Mammograms for Rapid Detection of Microcalcification Clusters

Hajar Moradmand / Saeed Setayeshi / Alireza Karimian / Mehri Sirous

Iranian Journal of Medical Physics, Vol 11, Iss Issue 2,3, Pp 260-

2014 Volume 269

Abstract	Introduction Breast cancer is one of the most common types of cancer among women. Early detection of breast cancer is the key to reducing the associated mortality rate. The presence of microcalcifications clusters (MCCs) is one of the earliest signs of breast cancer. Due to poor imaging contrast of mammograms and noise contamination, radiologists may overlook some diagnostic signs, specially the presence of MCCs. In order to improve cancer detection, image enhancement methods are often used to aid radiologists. In this paper, a new enhancement method was presented for the accurate and early detection of MCCs in mammograms. Materials and Methods The proposed system consisted of four main steps including: 1) image scaling;2) breast region segmentation;3) noise cancellation using a filter, which is sensitive to MCCs; and 4) contrast enhancement of mammograms using Contrast-Limited Adaptive Histogram Equalization (CLAHE) and wavelet transform. To evaluate this method, 120 clinical mammograms were used. Results To evaluate the performance of the image enhancement algorithm, contrast improvement index (CII) was used. The proposed enhancement method in this research achieved the highest CII in comparison with other methods applied in this study. The Validity of the results was confirmed by an expert radiologist through visual inspection. Conclusion Detection of MCCs significantly improved in contrast-enhanced mammograms. The proposed method could be helpful for radiologists to easily detect MCCs; it could also decrease the number of biopsies and reduce the frequency of clinical misdiagnosis. Moreover, it could be useful prior to segmentation or classification stages.
Keywords	Breast cancer ; Image Enhancement ; Wavelet Transform ; Medical physics. Medical radiology. Nuclear medicine ; R895-920
Subject code	610
Language	English
Publishing date	2014-08-01T00:00:00Z
Publisher	Mashhad University of Medical Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A Rare Presentation of Childhood Burkitt`s Lymphoma with Tense Ascites, Massive Pleural Effusion and Abdominal Mass

Mehri Sirous / Azadeh Ebrahimi

Acta Medica Iranica, Vol 47, Iss

2009 Volume 6

Abstract: Burkitt's lymphoma is a lymphatic tumor classified as non-Hodgkin lymphoma with small non cleaved cells. The disease has an incidence of two cases per million patients in North America, and usually present with an intra-abdominal tumor, or enlarged ... ...

Abstract	Burkitt's lymphoma is a lymphatic tumor classified as non-Hodgkin lymphoma with small non cleaved cells. The disease has an incidence of two cases per million patients in North America, and usually present with an intra-abdominal tumor, or enlarged cervical lymph nodes. Massive amounts of peritoneal and plural fluid is rarely seen in these patients. A three year-old girl presented with massive pleural effusion, ascites, mesenteric infiltration, and intraperitoneal mass is discussed in this report. Burkitt's lymphoma is a highly aggressive tumor with a very rapid growth and a variety of different presentations. It is potentially curable, if highly intensive multidrug chemotherapy is used with aggressive central nervous system prophylaxis.
Keywords	Burkitt lymphoma ; pleural effusion ; ascitic fluid ; Medicine (General) ; R5-920
Language	English
Publishing date	2009-12-01T00:00:00Z
Publisher	Tehran University of Medical Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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