contrast enhanced magnetic resonance imaging in sacroiliitis

نویسندگان

ozgur tosun department of radiodiagnostics, katip celebi university, faculty of medicine, cigli, izmir, turkey; department of radiodiagnostics, katip celebi university, faculty of medicine, cigli, izmir, turkey. tel: +90-5054383290, fax: +90-2323254042

gulden saglamer tangal department of radiodiagnostics, katip celebi university, faculty of medicine, cigli, izmir, turkey

nurdan cay department of radiodiagnostics, ankara atatürk education and research hospital, ankara, turkey

yuksel maras department of rheumatology, ankara atatürk education and research hospital, ankara, turkey

چکیده

conclusion fs t2 w and ce fs t1 w sequences of axial planes were the most useful sequences in determination of active sacroiliitis. therefore, in patients with renal failure or allergy to contrast media, fs t2 wi can be obtained to detect active sacroiliitis. objectives the aim of this retrospective study was to assess the value of different magnetic resonance imaging (mri) sequences in evaluation of bone marrow and subchondral bone changes in active sacroiliitis and inter- and intra-observer reliability of these sequences. results highest agreement between measurements of observer 1 and 2 was found on contrast enhanced fat suppressed t1 weighted imaging (ce fs t1 wi) (97.78%) among all sequences and on fs t2 wi of axial planes within sequences taken before contrast injections (97.78%). patients and methods ninety patients (65 males, 25 females; mean age 33.44 ± 11 years; range 15 to 62) with mri findings suggestive of active sacroiliitis were selected from picture archive and communication system (pacs) by the consensus of two radiologists. the sijs were retrospectively analyzed by two radiologists separately blinded to each other’s evaluations. each sequence was evaluated at different times (one week apart from each other) in the same monitor of pacs system by each observer. periarticular bone edema and contrast enhancement were recorded separately by each observer. background spondyloarthritis (spa) traditionally encompasses ankylosing spondylitis, psoriatic arthritis and reactive arthritis associated with inflammatory bowel diseases. sacroiliac joint (sij) inflammation is an important and usually the first finding of spa.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Contrast agents in dynamic contrast-enhanced magnetic resonance imaging

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a noninvasive method to assess angiogenesis, which is widely used in clinical applications including diagnosis, monitoring therapy response and prognosis estimation in cancer patients. Contrast agents play a crucial role in DCE-MRI and should be carefully selected in order to improve accuracy in DCE-MRI examination. Over the past...

متن کامل

diagnostic accuracy of dynamic contrast enhanced magnetic resonance imaging in characterizing lung masses

background imaging plays a critical role not only in the detection, but also in the characterization of lung masses as benign or malignant. objectives to determine the diagnostic accuracy of dynamic magnetic resonance imaging (mri) in the differential diagnosis of benign and malignant lung masses. patients and methods ninety-four masses were included in this prospective study. five dynamic seri...

متن کامل

Dynamic contrast-enhanced magnetic resonance imaging as an imaging biomarker.

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is being used in oncology as a noninvasive method for measuring properties of the tumor microvasculature. There is potential for DCE-MRI to be used as an imaging biomarker to measure antiangiogenic effects of cancer treatments. This article reviews the general methodology for performing DCE-MRI and discusses existing data and challe...

متن کامل

Effect of Bias in Contrast Agent Concentration Measurement on Estimated Pharmacokinetic Parameters in Brain Dynamic Contrast-Enhanced Magnetic Resonance Imaging Studies

Introduction: Pharmacokinetic (PK) modeling of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is widely applied in tumor diagnosis and treatment evaluation. Precision analysis of the estimated PK parameters is essential when they are used as a measure for therapy evaluation or treatment planning. In this study, the accuracy of PK parameters in brain DCE...

متن کامل

Delayed contrast-enhanced magnetic resonance imaging in pulmonary arterial hypertension.

Pulmonary arterial hypertension (PAH) causes pressure overload on the right ventricle and when untreated leads to progressive right ventricular dysfunction. Delayed contrast MRI can identify areas of myocardial infarction and myocardial fibrosis related to various cardiomyopathies. Delayed contrast magnetic resonance images in the short axis plane in 3 patients with PAH (Figure, A, idiopathic; ...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
iranian journal of radiology

جلد ۱۴، شماره ۱، صفحات ۰-۰

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023