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Article ; Online: Response to treatment of osteoid osteoma after radio frequency ablation and a comparison between drilling and curettage techniques before radio frequency ablation

Alireza Rasekhi / Ali Vatankhah / Saeed Solouki-Mootab / Banafsheh Zeinali-Rafsanjani

Tehran University Medical Journal, Vol 81, Iss 5, Pp 396-

2023 Volume 403

Abstract: Background: Osteoid osteoma is a painful benign osteoblastic lesion occurring mainly in the long bones. On the one hand, some studies have declared that post-treatment CT cannot determine the success or failure of radiofrequency ablation, on the other ... ...

Abstract	Background: Osteoid osteoma is a painful benign osteoblastic lesion occurring mainly in the long bones. On the one hand, some studies have declared that post-treatment CT cannot determine the success or failure of radiofrequency ablation, on the other hand, some studies have stated that imaging follow-up can be helpful or even mandatory in some cases. The present study aims to evaluate Osteoid Osteoma's imaging features before or after radiofrequency ablation with or without curettage and during the follow-up period. Methods: In this retrospective and cross-sectional study, we reviewed twenty seven Osteoid Osteoma patients with radiofrequency ablation who were assessed via drilling with or without curettage from March 2015 to December 2019 at Nemazi Hospital, Shiraz University of Medical Sciences. Results: Radiofrequency ablation with drilling was used in 22(81.5%) patients, and for the rest 5(18.5%), radiofrequency ablation with curettage and drilling was performed as a treatment procedure. The overall clinical success rate was 92.6%(25/27), with a low complication rate (7.4%). The mean diameter of nidus in pre/pos treatment was 3.46±2.02 and 2.22±1.75 mm, respectively. Femur 12(44.4%) was the most common bone in the patients. Significant differences between pre/post treatment follow up examinations in nidus size (P=0.03), nidus diameter (P=0.02), bone and calcification size (P=0.005) were detected. Additionally, it depicts that the mean values of tumor size and cortical thickening decreased after treatment. Conclusion: It is noteworthy that the present study had some limitations, including the small sample size and the relatively short follow-up period. There is no significant difference between radiofrequency ablation after drilling and curettage in treating Osteoid Osteoma. It is concluded that although there was a significant difference in pre/post-treatment imaging, there is no need for continuous imaging follow-up in treated patients without clinical complications such as pain to mitigate radiation dose ...
Keywords	curettage ; osteoblast ; osteoid osteoma ; radiofrequency ablation ; Medicine (General) ; R5-920
Subject code	616
Language	Persian
Publishing date	2023-08-01T00:00:00Z
Publisher	Tehran University of Medical Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Evaluation of nodule incidence as findings of lung involvement in Covid-19 infection and its comparison in three CT scan centers of Shiraz

Razieh Behzadmehr / Ariana Rasekhi / Banafsheh Zeinali-Rafsanjani / Alireza Rasekhi

Tehran University Medical Journal, Vol 81, Iss 5, Pp 388-

2023 Volume 395

Abstract: Background: Several typical and atypical findings have been observed in Covid-19 high-resolution computer tomography (HRCT). To our knowledge, there is no study investigating the relationship between the presence of nodules in Covid-19 patients and the ... ...

Abstract	Background: Several typical and atypical findings have been observed in Covid-19 high-resolution computer tomography (HRCT). To our knowledge, there is no study investigating the relationship between the presence of nodules in Covid-19 patients and the patient's condition. Therefore, the present study assessed the frequency of pulmonary nodules in Covid-19 patients according to their condition. Methods: This cross-sectional study assessed the medical images of the patients referred to three university-affiliated centers (Nemazi, Ali Asghar and Shahid Faghihi Hospital) to perform Covid-19 HRCT from April to September 2020. The centers have been named H1, H2, and H3. Patients who were referred to these centers had good, poor, and fair conditions, respectively. The history of patients was assessed carefully. Patients' demographic information, nodule shape, number, size, location, presence of cavitation, and GGO around the nodule were assessed and recorded. Results: Overall, 20576 patients (mean age=46.75±16.64 years old) were included in the study. Only 2.1% of cases had solid nodules. Most of them (96.76%) were accompanied by a GGO (halo sign), and only 10.42% were associated with a cavity. The good condition, patients showed significantly more solid nodules (3.46%) than others. In size of the nodules in good-condition patients (1.8 cm) is significantly larger than in fair-condition (1.22 cm) or poor condition patients (1.15 cm). 79.86%, 12.5%, and 7.64% of nodules were multiple, dual/triple, and single, respectively. Conclusion: The frequency of nodules in the HRCTs of good-condition patients was significantly higher than in fair- or poor-conditionpatients; they also had more multiple and larger-sized nodules. The Pearson-coefficient test also revealed a small negative correlation between the presence of nodules and the patient's condition. It seems the presence of nodules indicates higher immunity to viral infections. In the follow-up, it was revealed that people who had nodules were not hospitalized in the ICU. ...
Keywords	covid-19 ; ct scan ; nodule ; Medicine (General) ; R5-920
Subject code	616
Language	Persian
Publishing date	2023-08-01T00:00:00Z
Publisher	Tehran University of Medical Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Anatomic Variations of the Cystic Duct in Magnetic Resonance Cholangiopancreatography in Shiraz

Alireza Taghavi / Masoud Azizi / Alireza Rasekhi / Zeinab Gholami

Iranian Journal of Medical Sciences, Vol 47, Iss 1, Pp 48-

A Cross-Sectional Study

2022 Volume 52

Abstract: Background: Anatomic variations of the cystic duct (CD) are commonly encountered. Being aware of these variants will reduce complications subsequent to surgical, endoscopic, or percutaneous procedures. Magnetic resonance cholangiopancreatography (MRCP) ... ...

Abstract	Background: Anatomic variations of the cystic duct (CD) are commonly encountered. Being aware of these variants will reduce complications subsequent to surgical, endoscopic, or percutaneous procedures. Magnetic resonance cholangiopancreatography (MRCP) is the least invasive and the most reliable modality for biliary anatomy surveys. This study aimed to determine the prevalence of cystic duct variations in the Iranian population. Methods: In this retrospective cross-sectional study, MRCP images of 350 patients referred to Shiraz Faraparto Medical Imaging and Interventional Radiology Center from October 2017 to October 2018 were reviewed. The CD course and insertion site to the extrahepatic bile duct (EHBD) was determined and documented in 290 cases. Descriptive statistics and Chi square test were applied for data analysis via SPSS software.Results: About 77% of cases revealed the classic right lateral insertion to the middle third of EHBD. The insertion of CD to the upper third and the right hepatic duct was 10%, and the insertion to the medial aspect of the middle third of EHBD from anterior or posterior was noted to be about 7.6%. From 2.8% of insertions to the lower third, 1% demonstrated parallel course, and finally, 0.3% of cases presented short CD.Conclusion: CD variations are relatively common, and MRCP mapping prior to the hepatobiliary interventions could prevent unexpected consequences.
Keywords	cystic duct ; bile ducts ; extrahepatic ; cholangiopancreatography ; magnetic resonance ; radiography ; Medicine (General) ; R5-920
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Shiraz University of Medical Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: COVID-19 pneumonia presenting as a single pulmonary nodule in a kidney transplant recipient

Alireza Rasekhi, M.D. / Meisam Hoseinyazdi, M.D. / Saeid Esmaeilian, M.D. / Arash Teimouri, M.D. / Akbar Safaei, M.D. / Faranak Rafiee, M.D.

Radiology Case Reports, Vol 15, Iss 9, Pp 1587-

A case report and literature review

2020 Volume 1590

Keywords	Medical physics. Medical radiology. Nuclear medicine ; R895-920 ; covid19
Language	English
Publishing date	2020-09-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Post-operative quadriplegia as the initial manifestation of tumefactive multiple sclerosis

Behzad Maghsoudi / Hossein Haddad / Pooya Vatankhah / Alireza Rasekhi / Abbas Rahimi Jaberi

Indian Journal of Critical Care Medicine, Vol 19, Iss 6, Pp 359-

2015 Volume 361

Abstract: Post-operative quadriplegia is a rarely encountered complication and not previously reported as the initial presentation of tumefactive multiple sclerosis. We present an unusual case of a patient with such manifestation and atypical lesions on brain ... ...

Abstract	Post-operative quadriplegia is a rarely encountered complication and not previously reported as the initial presentation of tumefactive multiple sclerosis. We present an unusual case of a patient with such manifestation and atypical lesions on brain magnetic resonance imaging. The patient was treated with methyl prednisolone pulse therapy and showed a dramatic response. Uncommon neurologic diseases can have very unusual presentations, which should be taken into consideration when encountered with such patients. Considering this fact will help physicians in better decision-making and proper treatment planning.
Keywords	Multiple sclerosis ; postoperation ; quadriplegia ; tumefactive ; Medical emergencies. Critical care. Intensive care. First aid ; RC86-88.9 ; Internal medicine ; RC31-1245 ; Medicine ; R
Language	English
Publishing date	2015-01-01T00:00:00Z
Publisher	Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Pulmonary Extramedullary Hematopoiesis in a Patient with Chronic Asthma Resembling Lung Cancer

Massood Hosseinzadeh / Navid Omidifar / Perikala Vijayananda Kumar / Alireza Rasekhi

Case Reports in Medicine, Vol

A Case Report

2012 Volume 2012

Abstract: Background. Extramedullary hematopoiesis is most often seen in reticuloendothelial organs specially spleen, liver, or lymph nodes, and it is rarely seen in lung parenchyma. Almost all reported cases of pulmonary extramedullary hematopoiesis occurred ... ...

Abstract	Background. Extramedullary hematopoiesis is most often seen in reticuloendothelial organs specially spleen, liver, or lymph nodes, and it is rarely seen in lung parenchyma. Almost all reported cases of pulmonary extramedullary hematopoiesis occurred following myeloproliferative disorders specially myelofibrosis. Other less common underlying causes are thalassemia syndromes and other hemoglobinopathies. There was not any reported case of pulmonary extramedullary hematopoiesis in asthmatic patients in the medical literature. Case. Here we reported a 65-year-old lady who was a known case of bronchial asthma with recent developed right lower lobe lung mass. Chest X-ray and CT studies showed an infiltrating mass resembling malignancy. Fine needle aspiration cytology of mass revealed pulmonary extramedullary hematopoiesis. The patient followed for 10 months with serial physical examination and laboratory evaluations which were unremarkable. Conclusion. Extramedullary hematopoiesis of lung parenchyma can be mistaken for lung cancer radiologically. Although previous reported cases occurred with myelofibrosis or hemoglobinopathies, we are reporting the first case of asthma-associated extramedullary hematopoiesis.
Keywords	Medicine ; R
Subject code	610
Language	English
Publishing date	2012-01-01T00:00:00Z
Publisher	Hindawi Limited
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The use of micro pulse oximetery as a new detector of tissue perfusion in solid organ transplantation

Alireza Rasekhi / Maryam Sharifian / Koroush Kazemi / Seyed Ali Malek Hosseini

Saudi Journal of Kidney Diseases and Transplantation, Vol 23, Iss 4, Pp 715-

2012 Volume 718

Abstract: Vascular complications are a frequent cause of transplant failure; angiography, duplex sonography, computerized tomography (CT) scan, CT-angiography and microdialysis are the methods that were suggested for the detection of arterial obstruction after ... ...

Abstract	Vascular complications are a frequent cause of transplant failure; angiography, duplex sonography, computerized tomography (CT) scan, CT-angiography and microdialysis are the methods that were suggested for the detection of arterial obstruction after transplantation. In this study, we suggest a new method. Eight healthy adult dogs were included in the trial. All cases were operated by the same surgeon and the liver, pancreas, spleen, kidney and bowel tissue were exposed. The probes of the device, which were designed for this study, were inserted on the organ parenchyma. The device, a neonatal pulse oximeter, has two probes that were fixed by a holder in front of each other; the distance between the probes was changeable via a spring. The pulse and the oxygen saturation of the tissue were measured initially. Following this, by inducing ischemia with vessel clamping, the pulse and the oxygen saturation were measured again. The collected data were analyzed under the supervision of a statistician. In the liver and spleen, we could not detect a clear pulse wave and oxygenation. On the other hand, in the pancreas, kidney and bowel, we detected a clear curve of oxygenation and pulse in all cases. Obstruction caused significant changes: the pulse was not detected and the oxygenation decreased significantly. Our study suggests that with early diagnosis, the surgeons can detect arterial occlusion immediately and early intervention may decrease parenchymal damage. This study is the first experience in this field, and these findings need to be validated with further studies.
Keywords	Medicine ; R
Subject code	610
Language	English
Publishing date	2012-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The Clinical Value of Axillary Ultrasonogra- phy for Detection of Axillary Lymph Node Metastasis in Cases with Breast Cancer

Sedigheh Tahmasebi / Behnam Dalfardi / Majid Akrami / Arash Talei / Abdolrasoul Talei / Alireza Rasekhi

Middle East Journal of Cancer , Vol 5, Iss 4, Pp 215-

2014 Volume 220

Abstract: Background: The axillary lymph node stage is one of the single most important determinants in the prognosis of breast cancer patients. The disadvantages of the two previous methods used for evaluating axillary node metastasis, i.e., axillary lymph node ... ...

Abstract	Background: The axillary lymph node stage is one of the single most important determinants in the prognosis of breast cancer patients. The disadvantages of the two previous methods used for evaluating axillary node metastasis, i.e., axillary lymph node dissection and sentinel lymph node biopsy, have directed researchers to investigate new techniques for this purpose. The aim of the current study was to evaluate the clinical usefulness of axillary ultrasonography in detecting axillary metastasis. Methods: This study was conducted during a 12-month period. The breast cancer cases included in this study were all clinically diagnosed as stages I and II, with no prior treatment to the axillary region by surgery and/or chemo-radiotherapy. Excluded from the study group were patients with palpable axillary lymph nodes, those who had major organ failure or concomitant malignancy. All included patients with non-palpable axillary lymph nodes underwent axillary ultrasound examination. An ultrasound- guided core needle biopsy was performed on patients with suspected metastasis. Results: There were 125 female patients with a mean age of 49.6 years included in this study. From these, 16 (12.8%) cases had positive axillary sonographic findings. Pathologic evaluation of tissue specimens (taken by ultrasound-guided core needle biopsy) in 10 (62.5%) out of 16 patients were positive, and in the patient group of 6 (37.5%) cases, studies were negative. Axillary ultrasonography had a sensitivity of 35.7%, specificity of 93.8%, positive predictive value of 62.5%, and negative predictive value of 83.5%. Conclusion: The axillary ultrasonogram is a reliable technique in the determination of axillary nodal metastatic involvement in breast cancer patients. By use of this method a significant amount of complications and costs related to the previous techniques can be avoided.
Keywords	Axilla ; Biopsy ; Breast neoplasms ; Lymph nodes ; Neoplasm metastasis ; Ultra- sonography ; Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282 ; Internal medicine ; RC31-1245 ; Medicine ; R
Subject code	610 ; 616
Language	English
Publishing date	2014-10-01T00:00:00Z
Publisher	Shiraz University of Medical Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: MRI Evaluation of Liver Iron Concentration in Patients with β-Thalassemia Major

Mehran Karimi / Vahid Emad Marvasti / Alireza Rasekhi / Perikala Vigayananda Kumar / Mohammadreza Bordbar / Alireza Moshiri / Peyman Hasanpour / Kazem Serajzade

Hepatitis Monthly, Vol 10, Iss 2, Pp 149-

2010 Volume 150

Abstract: β-thalassemia major is a hereditary anemia, characterized by a genetic deficiency in the synthesis of the β-globin chain (1). The main complication of the multiple blood transfusions to these patients is iron overload and the deposition of iron in ... ...

Abstract	β-thalassemia major is a hereditary anemia, characterized by a genetic deficiency in the synthesis of the β-globin chain (1). The main complication of the multiple blood transfusions to these patients is iron overload and the deposition of iron in various organs, such as the reticuloendothelial system, the liver, the heart and the endocrine glands (2).he most reliable method of calculating body iron stores is the biochemical or histochemical assessment of iron in a liver biopsy specimen. Since liver biopsy is an invasive procedure, attempts have been made to use imaging for detection and quantification of liver iron content (4-7). Magnetic resonance imaging (MRI) is a technique for the diagnosis of hemochromatosis. Many investigators have shown that hepatic T2 relaxation or intensity ratios in MR images have a significant correlation with hepatic iron content (8-11).In this study, we have evaluated the correlation of the hemochromatosis grades in liver MRIs and liver biopsies to evaluate the precision of liver MRIs in grading hemochromatosis.
Keywords	MRI ; Iron Concentration ; β-Thalassemia Major ; Diseases of the digestive system. Gastroenterology ; RC799-869 ; Specialties of internal medicine ; RC581-951 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Gastroenterology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
Subject code	610
Language	English
Publishing date	2010-04-01T00:00:00Z
Publisher	Tehran Hepatitis Center
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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