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Article ; Online: Ultrasonographic Measurement of the Joint Space of Symphysis Pubis

Mehdi Karami / Amirhossein Ghazavi

Iranian Journal of Radiology, Vol 7, Iss S1, p

2010 Volume 4

Abstract: Background/Objective: Symphysis pubis is among the joints involved in different diseases and also trauma. Change in joint space is one of the most common signs observed in different diseases, especially in traumatic patients. Various methods have been ... ...

Abstract	Background/Objective: Symphysis pubis is among the joints involved in different diseases and also trauma. Change in joint space is one of the most common signs observed in different diseases, especially in traumatic patients. Various methods have been used to evaluate the joint space of symphysis pubis. Of which conventional radiography is the most common. "nAs symphysis pubis is a superficial, sonography may be a suitable method to evaluate the joint and to measure its space. Having researched in the reference books and the available articles, no comprehensive study has been performed in this field. "nPatients and Methods: In this research, the symphysis pubis joint space in healthy people was measured and the association between the measured space with sex, age, weight, height, BMI (body mass index) and the number of parity among women was assessed. "nResults: There was a direct linear correlation between distance of joint space and age (p-value=0.006, r=0.190). There was a direct linear correlation between distance of joint space and weight (p-value=0.029 and r=0.151). There was a reversed linear correlation between distance of joint space and height (p-value=0.004, r=0.195). There was a direct linear correlation between distance of joint space and BMI (p-value=0.001, r=0.269). There was a direct linear correlation between distance of joint space and number of parity (p-value=0.031, r=0.203). The mean of joint was 6.26mm±0.75mm among men and 6.86mm±0.88mm among women. The t-test demonstrates that the difference is significant (p-value<0.001)."nConclusion: This study and the calculated joint space can be generalized to the society with the error estimation of 0.11mm
Keywords	Medical physics. Medical radiology. Nuclear medicine ; R895-920 ; Medicine (General) ; R5-920 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
Subject code	796
Language	English
Publishing date	2010-05-01T00:00:00Z
Publisher	Kowsar Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Osteoarthritis of the Hand as Case Presentation

Amirhossein Ghazavi / Ali Hekmatnia

Iranian Journal of Radiology, Vol 7, Iss S1, p

2010 Volume 60

Abstract: Osteoarthritis of the hand may involve the interphalangeal, metacarpophalangeal, carpometacarpal, carpal, radiocarpal and ulnocarpal joints. Each joint has its specific patient's history, radiographic view, radiographic signs and associations. Moreover, ... ...

Abstract	Osteoarthritis of the hand may involve the interphalangeal, metacarpophalangeal, carpometacarpal, carpal, radiocarpal and ulnocarpal joints. Each joint has its specific patient's history, radiographic view, radiographic signs and associations. Moreover, MRI, sonography or CT arthrography may be useful. We mean to represent the above aspects of osteoarthritis of var-ious joints of the hand in a case by case basis.
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	2010-05-01T00:00:00Z
Publisher	Kowsar Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Common and Rare Causes of Spinal Dumbbell-Shaped Lesions Including a Chondrosarcoma That Primarily Developed in the Cervical Spine

Amirhossein Ghazavi / Ali Hekmatnia

Iranian Journal of Radiology, Vol 6, Iss S1, p

A Case Report

2009 Volume 105

Abstract: Various neoplastic, vascular and developmental causes may lead to spinal neural foraminal widening. Schwanomas and neurofibromas are the most common causes of spinal dumbbell-shaped lesions. Occasionally, some other slow-growing tumors may cause neural ... ...

Abstract	Various neoplastic, vascular and developmental causes may lead to spinal neural foraminal widening. Schwanomas and neurofibromas are the most common causes of spinal dumbbell-shaped lesions. Occasionally, some other slow-growing tumors may cause neural foraminal widening."nWe report an exceptional case of a spinal chondrosarcoma of the neural arcus of C5. The lesion passed through the C4-C5 foramen, producing a dumbbell mass.
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	2009-01-01T00:00:00Z
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: A Case Report of Chondrosarcoma That Primarily Developed in the Cervical Spine

Ali Hekmatnia / Amirhossein Ghazavi / Bahram Aminmansour / Parvin Mahzouni

Iranian Journal of Radiology, Vol 9, Iss 1, Pp 57-

2012 Volume 59

Keywords	Chondrosarcoma ; Cervical Vertebrae ; 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	2012-03-01T00:00:00Z
Publisher	Kowsar Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A case report of osteochondroma with unusual clinical and imaging presentation

Mohammad Javdan / Ali Hekmatnia / Amirhossein Ghazavi / Reza Basiratnia / Mansour Mehrzad / Farzaneh Hekmatnia / Hossein Ahrar

Advanced Biomedical Research, Vol 4, Iss 1, Pp 2-

2015 Volume 2

Abstract: Osteochondroma or exostosis is a bony developmental anomaly, which arises from exophytic outgrowth on bone surfaces in a characteristic manner. Osteochondroma is asymptomatic and grows away from the nearby joint. This paper reports an unusual ... ...

Abstract	Osteochondroma or exostosis is a bony developmental anomaly, which arises from exophytic outgrowth on bone surfaces in a characteristic manner. Osteochondroma is asymptomatic and grows away from the nearby joint. This paper reports an unusual presentation of osteochondroma in which the patient was surprisingly completely symptomatic. The lesion grew toward the nearby joint and the radiographic findings were not compatible with surgical findings
Keywords	Knee joint ; osteochondroma ; radiography ; Medicine ; R ; Biology (General) ; QH301-705.5
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: Imaging of Various Aspects of Neurofibromatosis Involvement

Nazila Tayari / Amirhossein Ghazavi / Ali Hekmatnia

Iranian Journal of Radiology, Vol 7, Iss S1, p

Case Series

2010 Volume 40

Abstract: Neurofibromatosis (NF) is often noticed at birth or soon after. NF is divided into two types: NF type 1 is a complex of cutaneous and deep neural tumors. It is an autosomal dominant familial disorder. CNS is affected in about 15% of the cases. Optic ... ...

Abstract	Neurofibromatosis (NF) is often noticed at birth or soon after. NF is divided into two types: NF type 1 is a complex of cutaneous and deep neural tumors. It is an autosomal dominant familial disorder. CNS is affected in about 15% of the cases. Optic nerve gliomas have a high degree of association with NF 1."nNF type 2 is much less commonly seen. It is also inherited as an autosomal dominant trait. Bilateral acoustic neuromas are pathognomonic of NF 2 and may be associated with meningiomas or ependymo-mas."nTypical clinical manifestations of neurofibromatosis are cafe-au-lait spots and multiple cutaneous tumors. There are also bone involvement as scoliosis, pseudoarthrosis of long bones, scalloping of vertebral bodies, abnormal rib tubulation, and defective ossification of the posterior superior wall of the orbit."nExtraskeletal manifestations of neurofibromatosis include gliomas of the optic nerves, pheochromocytoma, aneurysms of cerebral and renal arteries, acoustic neurilemmoma and superficial skin nodular neurofibromas."nHere, we intend to present images of several cases of neurofibromatosis with different aspects of involvement of the body. "nKeywords: Neurofibromatosis, Glioma, Schwannoma, Neurinoma
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	2010-05-01T00:00:00Z
Publisher	Kowsar Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Prevalence of hippocampal morphologic variants between healthy elderly subjects and patients with Alzheimer′s disease

Ali Hekmatnia / Reza Basiratnia / Razieh Koohi / Majid Barekatein / Hossein Ahrar / Farzaneh Hekmatnia / Amirhossein Ghazavi

Advanced Biomedical Research, Vol 3, Iss 1, Pp 59-

2014 Volume 59

Abstract: Background: Alzheimer′s disease (AD) is a neurodegenerative disease with atrophic changes in the temporal lobe. Enlargement of cerebrospinal fluid (CSF) spaces, hippocampal sulcus (HS) enlargement, or an increase in the number or size of hippocampal ... ...

Abstract	Background: Alzheimer′s disease (AD) is a neurodegenerative disease with atrophic changes in the temporal lobe. Enlargement of cerebrospinal fluid (CSF) spaces, hippocampal sulcus (HS) enlargement, or an increase in the number or size of hippocampal cavities (HCs) could be associated with medial temporal lobe atrophy (MTA). In this study, we assessed the relation of these CSF spaces with AD. Materials and Methods: A total 36 demented patients with diagnosis of Alzheimer (Mini-Mental State Examination (MMSE) ≤25) and 36 non-demented elderly individuals were referred for basic magnetic resonance imaging (MRI) before initiating anti-dementia therapy in the demented group. Two observers assessed the maximal HS width, as well as the occurrence, number, and size of HCs, and the visual rating score of MTA on magnified coronal high-resolution T1-weighted MR images. Results : The findings of our study indicate that the presence of hippocampal cavity (HC) (especially in the left side) and medial temporal lobe atrophy in demented patients was significantly higher in comparison with non-demented elderly subjects ( P ≤ 0.05). There was a significant relationship between MTA and HS width ( P = 0.003, r = 0.00323), and it also had a trend to be significant with size of HCs ( P = 0.08, r = 0.00314). A correlation between MTA and number of HCs was not detected. Conclusion : HS width is associated with MTA in patients with AD. It may serve as a measure to evaluate MTA for identifying individuals at particularly high risk for Alzheimer progression, and could be employed for selecting subjects for clinical trials or for treatment decisions.
Keywords	Alzheimer′s disease ; hippocampal cavities ; hippocampal sulcus ; magnetic resonance imaging ; Medicine ; R ; Biology (General) ; QH301-705.5
Subject code	610
Language	English
Publishing date	2014-01-01T00:00:00Z
Publisher	Wolters Kluwer Medknow Publications
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: CT Angiography May Be a More Useful Modality Than Digital Subtractional Angiography in the Diagnosis of Patients with Subarachnoid Hemorrhage Due to Cerebral Aneurysms

Masih Saboori / Ali Reza Hekmatnia / Navid Omidifar / Amirhossein Ghazavi / Farzaneh Hekmatnia

Iranian Journal of Radiology, Vol 8, Iss S1, Pp 71-

2011 Volume 71

Abstract: Background/Objective: The preoperative diagnostic"nvalidity of two radiological modalities (computed"ntomographic angiography and digital subtractional"nangiography) in the diagnosis of brain aneurysms were"ncompared."nPatients and Methods: During 2 ... ...

Abstract	Background/Objective: The preoperative diagnostic"nvalidity of two radiological modalities (computed"ntomographic angiography and digital subtractional"nangiography) in the diagnosis of brain aneurysms were"ncompared."nPatients and Methods: During 2 years of study,"nreferred patients with signs of SAH to the emergency"nward underwent routine CT scan and after SAH was"nfirmly diagnosed, CTA and DSA methods were done"nand patients with correct indications were operated."nAfter surgery and detecting the existence of aneurysms"nand their location, the data were recorded in a"nchecklist. Sensitivity, specificity, positive and negative"npredictive values were calculated and compared in"nboth methods."nResults: The mean age of the 30 patients were"n49.5±9.13 years. 57.9 % of the subjects were female"nand the others were male. On CTA reports 100% true"npositive, 0% false positive, 85% true negative, and 15%"nfalse negative were calculated. DSA reports were true"npositive, false positive, true negative and false negative"nin 100%, 0%, 69% and 31%, respectively. CTA showed"n89% of sensitivity, and 100% of specificity in contrast"nto 74% sensitivity and 100% specificity of DSA."nPositive predictive values of both methods were 100%,"nbut negative predictive values of CTA and DSA were"n85% and 69%, respectively."nConclusion: Based on our data, CTA is more preferable"ndiagnostic modality for the brain aneurysm's site and"nanatomy in patients with subarachnoid hemorrhage"nthan DSA."nKeywords: CT Scan Angiography, Digital Subtraction"nAngiography, Cerebral Aneurysm, Subarachnoid"nHemorrhage
Keywords	CT Scan Angiography ; Digital Subtraction Angiography ; Cerebral Aneurysm ; Subarachnoid Hemorrhage ; 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	2011-05-01T00:00:00Z
Publisher	Kowsar Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Comparison of Plaque number and Volumetry in the Evaluation of Treatment Response in Multiple Sclerosis

Ali Reza Hekmatnia / Amirhossein Ghazavi / Masoud Etemadifar / Nazila Tayari / Farzaneh Hekmatnia

Iranian Journal of Radiology, Vol 8, Iss S1, Pp 67-

2011 Volume 68

Abstract: Background/Objective: The criteria for response to"nInterferon β-1-a in the treatment of multiple sclerosis"n(MS) has been clinical. However, imaging criteria on"nMagnetic Resonance Imaging (MRI) can also be useful."nThe number of MS plaques (NP) and the ...

Abstract	Background/Objective: The criteria for response to"nInterferon β-1-a in the treatment of multiple sclerosis"n(MS) has been clinical. However, imaging criteria on"nMagnetic Resonance Imaging (MRI) can also be useful."nThe number of MS plaques (NP) and the volume of"nMS plaques (VP) are two criteria for evaluation of the"nresponse to treatment based on MRI. The aims of the"npresent study were: (a) to assess the NP on MRI as a"nreliable criterion for response to treatment, (b) to assess"nthe VP on MRI as a reliable criterion for response to"ntreatment, (c) to compare the NP and VP with each"nother as which one is the most accurate, and (d) to"ndefine for the first time a new cut-off point, in the case"nof proving these two criteria reliable."nPatients and Methods: Thirty-five relapsingremitting"nMS patients were randomly selected and a"npre-treatment MRI for each patient was taken. The NP"nand VP were determined. Then, the patients were put"non Interferon β-1-a for one year. After completion of"ntreatment period, another MRI for each patient was"ntaken. The NP and VP were again determined. The"ncriterion for response to treatment on MRI was defined"nas 50% decrease in mean NP or VP."nResults: There was a significant decrease in the mean"nNP after treatment (p-value<0.001). There was also a"nsignificant decrease in the mean VP after treatment (pvalue<"n0.001) (The cut-off point defined for analyzing"nthe data was 50% decrease in mean NP or VP). The"nspecificity of the NP and VP as two criteria was the"nsame and equal to 100%. The sensitivity of the NP"nwas 65.5% and for the VP was 90.6%. Furthermore,"naccording to Rock curve, if the cut-off point for the NP"nis considered 10%, the sensitivity of NP as a criterion"nwill be the same as that of VP (90.6%)."nConclusion: The VP is a more accurate criterion than"nthe NP. If the cut-off point for the NP is changed to"n10% decrease in mean, the sensitivity of the number"nof plaques as an imaging criterion will be the same as"nthat of the volume of plaques.
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	2011-05-01T00:00:00Z
Publisher	Kowsar Corporation
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A case report of cemento-ossifying fibroma presenting as a mass of the ethmoid sinus

Ali Hekmatnia / Amirhossein Ghazavi / Masih Saboori / Parvin Mahzouni / Nazila Tayari / Farzaneh Hekmatnia

Journal of Research in Medical Sciences, Vol 16, Iss 2, Pp 224-

2011 Volume 228

Abstract: Cemento-ossifying fibroma is a lesion containing both fibrous and osseous components. Such lesions include fibrous dysplasia, ossifying fibroma, cemento-ossifying fibroma and cementifying fibroma. Periodontal membrane is the origin of fibro-osseous ... ...

Abstract	Cemento-ossifying fibroma is a lesion containing both fibrous and osseous components. Such lesions include fibrous dysplasia, ossifying fibroma, cemento-ossifying fibroma and cementifying fibroma. Periodontal membrane is the origin of fibro-osseous lesions other than fibrous dysplasia. Here a clinical case of a young woman referred for evaluation of a mass in the right side of face between eye and nose is presented. The first time she noticed the mass was 2 years ago and was growing larger inwards. She was treated with surgical resection. In this case of a cemento-ossifying fibroma, histological interpretation was critical, and was the basis of correct treatment.
Keywords	Fibroma ; Ossifying ; Ethmoid Sinus ; Tomography ; X-Ray Computed ; Magnetic Resonance Imaging ; 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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