Rheumatoid arthritis of the craniocervical region: assessment and characterization of inflammatory soft tissue proliferations with unenhanced and contrast-enhanced CT

Granulomatosis with polyangiitis is a systemic disease resulting in necrotizing vasculitis of small- and medium-sized vessels. Cardiac involvement is rare and when present usually manifests with pericarditis and coronary artery vasculitis. We report here a case of granulomatosis with polyangiitis involving the native coronary arteries, bypass graft, and pericardium with interesting imaging findings on contrast-enhanced CT and MRI. A 57-year-old man with a history of chronic headaches presented to the emergency room with syncope. Contrast-enhanced CT demonstrated extensive soft tissue attenuation around the native coronary arteries and bypass graft. Contrast-enhanced MRI demonstrated enhancing nodular soft tissue surrounding the coronary arteries, bypass graft, and pericardium. Pericardial biopsy revealed a necrotizing granulomatous pericarditis with vasculitis concerning for granulomatosis with polyangiitis. The patient demonstrated MPO-positive and PR-3 negative serologies. After being discharged on rituximab and prednisone, follow-up CT 3 years later showed significant improvement of the soft tissue thickening surrounding the coronary arteries, bypass graft, and pericardium.

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Characterization of statistical prior image constrained compressed sensing. I. Applications to time-resolved contrast-enhanced CT

Medical Physics ◽

10.1118/1.4748323 ◽

2012 ◽

Vol 39 (10) ◽

pp. 5930-5948 ◽

Cited By ~ 21

Author(s):

Pascal Thériault Lauzier ◽

Guang-Hong Chen

Keyword(s):

Compressed Sensing ◽

Time Resolved ◽

Contrast Enhanced Ct ◽

Contrast Enhanced ◽

Enhanced Ct ◽

Statistical Prior

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Differences Between CT-Perfusion and Biphasic Contrast-enhanced CT for Detection and Characterization of Hepatocellular Carcinoma: Potential Explanations for Discrepant Cases

Anticancer Research ◽

10.21873/anticanres.14903 ◽

2021 ◽

Vol 41 (3) ◽

pp. 1451-1458

Author(s):

REGINE MARIETTE PERL ◽

JOHANNES PORTUGALL ◽

CLEMENS HINTERLEITNER ◽

MARTINA HINTERLEITNER ◽

CHRISTOPHER KLOTH ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Ct Perfusion ◽

Contrast Enhanced Ct ◽

Contrast Enhanced ◽

Enhanced Ct

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TO ASSESS THE ROLE OF DWI IN CHARACTERIZING THE RENAL NEOPLAMS INTO THE VARIOUS SUBTYPES USING THE ADC VALUES OF THE LESIONS AND FINDING ITS ACCURACY BY HISTOPATHOLOGICAL CORRELATION.

International Journal of Medical and Biomedical Studies ◽

10.32553/ijmbs.v4i10.1451 ◽

2020 ◽

Vol 4 (10) ◽

Author(s):

Nitin Kumar Tripathi ◽

Sanjay Kumar Tekam

Keyword(s):

Renal Lesion ◽

Medical College ◽

Non Invasive ◽

Histopathological Correlation ◽

Contrast Enhanced Ct ◽

Contrast Enhanced ◽

Enhanced Ct ◽

Adc Values

This prospective study was done in the Department of Radiodiagnosis at M.G.M. Medical College, & M.Y. Hospital, Indore. A total of 40 patients who were referred to our department with strong clinical suspicion of renal lesion and those diagnosed by ultrasonography or contrast enhanced CT scan having a renal mass on either of them, were subjected to a non-contrast. ADC values are expressed in 10-3 mm2/s. DW imaging with ADC values allows differentiation of clear cell, papillary and chromophobe subtypes of RCCs, suggesting that DW imaging may be a useful tool in the preoperative characterization of RCC. Hence, MRI with DWI in particular is a very valuable non invasive tool for the Identification, characterization and differentiation of renal lesions. Study Designed: Observational Study. Keywords: DWI, Renal, Neoplams, ADC, Histopathological & Correlation.

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