scholarly journals Magnetic resonance imaging compared to ultrasonography in giant cell arteritis: a cross-sectional study

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Ashley Yip ◽  
Elizabeth Torrey Jernberg ◽  
Mohammad Bardi ◽  
Julia Geiger ◽  
Frode Lohne ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Giant Cell Arteritis ◽  
Giant Cell ◽  
Cross Sectional Study ◽  
Vascular Changes ◽  
Resonance Imaging ◽  
First Line ◽  
Cross Sectional ◽  
Contrast Enhanced ◽  
New Onset

Abstract Background There has been a shift in recent years to using ultrasound (US) and magnetic resonance imaging (MRI) as first-line investigations for suspected cranial large vessel vasculitis (LVV) and is a new recommendation by the EULAR 2018 guidelines for imaging in LVV. This cross-sectional study compares the performance of US and MRI and contrast-enhanced magnetic resonance angiography (MRA) for detecting vasculitis in patients with giant cell arteritis (GCA). Methods Patients with new-onset or already diagnosed GCA were recruited. The common temporal arteries and supra-aortic large vessels were evaluated by US and MRI/MRA. Blinded experts read the images and applied a dichotomous score (vasculitis: yes/no) in each vessel. Results Thirty-seven patients with giant cell arteritis (GCA) were recruited. Two patients were excluded. Of the remaining patients, nine had new-onset disease and 26 had established disease. Mean age was 71 years, and median C-reactive protein (CRP) was 7.5 mg/L. The median time between US and MRI was 1 day. Overall, US revealed vasculitic changes more frequently than MRI (p < 0.001). US detected vascular changes in 37% of vessels compared to 21% with MRI. Among patients with chronic disease, US detected vascular changes in 23% of vessels compared to 7% with MRI in (p < 0.001). The same was true for patients with new-onset disease. US detected vasculitic changes in 22% of vessels and MRI detected disease in 6% (p = 0.0004). Compared to contrast-enhanced MRA, US was more sensitive in detecting vasculitic changes in the large arteries, including the axillary, carotid, and subclavian arteries. Conclusion US more frequently detects vasculitic changes in the large arteries compared to contrast-enhanced MRA. When evaluating the cranial vessels, US performs similarly to MRI. This data supports the recommendation that US be considered as a first-line evaluation in patients suspected to have GCA.

scholarly journals Magnetic resonance imaging template to standardize reporting of anal fistulas

2021 ◽  
Author(s):  
I. Sudoł-Szopińska ◽  
G. A. Santoro ◽  
M. Kołodziejczak ◽  
A. Wiaczek ◽  
U. Grossi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Treatment Strategies ◽  
Cross Sectional Study ◽  
Resonance Imaging ◽  
Anal Fistulas ◽  
Cross Sectional ◽  
Radiology Reports ◽  
Colorectal Surgeons ◽  
Magnetic Resonance Imaging Mri

AbstractAnal fistula (AF) is a common referral to colorectal surgeons. Management remains challenging and sometimes controversial. Magnetic resonance imaging (MRI) is commonly performed in initial workup for AF. However, reports often lack key information for guiding treatment strategies. It has been shown that with structured radiology reports, there is less missing information. We present a structured MRI template report including 8 key descriptors of anal fistulas, whose effectiveness and acceptability are being assessed in a cross-sectional study (NCT04541238).

Evaluation of Supratentorial Brain Neoplasms - A Cross Sectional Study from a Tertiary Care Hospital, Surendranagar, Gujarat

2021 ◽  
Vol 8 (26) ◽  
pp. 2253-2259
Author(s):  
Mohit B. Gor ◽  
Kuldeepsinh D. Mori ◽  
Mehul N. Bavishi ◽  
Nirmala C. Chudasama ◽  
Jaypalsinh D. Barad ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Brain Tumours ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Multiplanar Imaging ◽  
Higher Sensitivity

BACKGROUND Brain tumours represents 1.7 % of all cancers and contributes 1.8 % of all cancer deaths. Of all the brain tumours, 80 % are supratentorial.1 Magnetic resonance imaging (MRI) is an important modality, having higher sensitivity for detecting intracranial pathology. Multiplanar imaging is possible with MRI which helps in detection, localization and characterization of the lesion. MRI examination has helped in early diagnosis, accurate localization of the tumour, with prompt initiation of appropriate medical or surgical therapy. Recent advances like magnetic resonance (MR) spectroscopy, MR fluoroscopy with stereotactic guided biopsy have revolutionized the role of MRI in study of intracranial tumours. METHODS A cross sectional study of 75 patients was done by Siemens Essenza 1.5T MRI from June 2018 to June 2020 using dedicated head coil. RESULTS In our study, most of the patients were between 31 - 60 years of age (39 % of all patients) with the largest group between 31 - 40 years (20 % of all patients). Out of 75 cases of supratentorial neoplasms, 47 (72 %) were intra-axial lesions, 15 (23 %) were extra-axial lesions and 3 (5 %) were intra ventricular lesions. In this study, 69 % of the lesions were solitary and 31 % were multiple. Most of patients (89 %) showed some enhancement, most common being heterogeneous/inhomogeneous enhancement. Commonest type of supratentorial neoplasms were metastases comprising 29 % of this study. CONCLUSIONS Magnetic resonance imaging is an important modality, having higher sensitivity for detecting intracranial pathology. Multiplanar imaging is possible with MRI which helps in early detection, localization and characterization of the lesion. Metastasis is the most common supratentorial tumour in this study followed by meningioma. Intra-axial tumours are more common than extra-axial tumours in this study. KEYWORDS MRI, Metastasis, Glioma, Meningioma

scholarly journals Imaging of the adrenal gland lesions

2014 ◽  
Vol 47 (4) ◽  
pp. 228-239 ◽  
Author(s):  
Keith Herr ◽  
Valdair F. Muglia ◽  
Walter José Koff ◽  
Antonio Carlos Westphalen
Keyword(s):  
Computed Tomography ◽  
Magnetic Resonance ◽  
Adrenal Gland ◽  
Photon Emission ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Contrast Enhanced ◽  
Cross Sectional Imaging ◽  
Contrast Enhanced Ultrasonography ◽  
Photon Emission Tomography

With the steep increase in the use of cross-sectional imaging in recent years, the incidentally detected adrenal lesion, or "incidentaloma", has become an increasingly common diagnostic problem for the radiologist, and a need for an approach to classifying these lesions as benign, malignant or indeterminate with imaging has spurred an explosion of research. While most incidentalomas represent benign disease, typically an adenoma, the possibility of malignant involvement of the adrenal gland necessitates a reliance on imaging to inform management decisions. In this article, we review the literature on adrenal gland imaging, with particular emphasis on computed tomography, magnetic resonance imaging, and photon-emission tomography, and discuss how these findings relate to clinical practice. Emerging technologies, such as contrast-enhanced ultrasonography, dual-energy computed tomography, and magnetic resonance spectroscopic imaging will also be briefly addressed.

scholarly journals Correlation between Echocardiography and MRI in Volumetric Analysis of Dilated Cardiomyopathy - A Cross-Sectional Study from Puttaparthi, Andhra Pradesh

2021 ◽  
Vol 8 (19) ◽  
pp. 1391-1396
Author(s):  
Kushal Singh ◽  
Anshita Singh ◽  
Piyush Piyush
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Stroke Volume ◽  
Dilated Cardiomyopathy ◽  
Cardiac Mri ◽  
Andhra Pradesh ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Resonance Imaging ◽  
Cross Sectional

BACKGROUND Echocardiography is considered as a traditional approach to clinically study dilated cardiomyopathy. Because of poor apical visibility, however, volumetric calculations are difficult to ascertain. In calculating left ventricle volumes and ejection fractions, magnetic resonance (MR) imaging has shown to be more accurate than echocardiography. Due to conflicting literature, the present study was conducted to diagnose dilated cardiomyopathy using 2 D - echocardiography and correlate these echocardiographic findings with magnetic resonance imaging (MRI). METHODS This observational cross-sectional study was conducted in the Department of Radio-diagnosis and Imaging, Sri Sathya Sai Institute of Higher Medical sciences, Puttaparthi, Andhra Pradesh, Pin 515134. The study group consisted of consecutive patients who had clinical suspicion of dilated cardiomyopathy. A total of 40 patients underwent both 2 D - echo and cardiac MRI on the same day. All patients underwent 2 - D echo which was performed at the frame rate of 40 - 80 frames per second in the left lateral decubitus position to obtain standard 2, 3, and 4 chambers as well as short axis views (GE Vingmed Vivid 7 Dimensions, Horton, Norway: 2.5 MHz transducer). MRI was performed on a 1.5 T scanner (Mangnetom Aera, Siemens, Erlangen, Germany). For patient monitoring and cardiac synchronization, 3 - lead electrocardiography was used. RESULTS In the present study, in comparison to reference standard (cardiac MRI), 2 D - echocardiography showed significant and systematic underestimation of enddiastolic volume (EDV), end-systolic volume (ESV) and stroke volume (SV). Good correlation between 2 D - echo and cardiac MRI was noted for end-diastolic volume (r = 0.89), stroke volume (r = 0.60) and ejection fraction (r = 0.75). CONCLUSIONS In summary, magnetic resonance imaging is an accurate, non-invasive, safe and advanced modality for evaluation of global left ventricular function and myocardial scarring. 2 D - echocardiography can be used for screening of the patients with clinically suspected dilated cardiac myopathy (DCM) and their follow up. KEYWORDS Echocardiography, MRI, Cardiomyopathy

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