scholarly journals Advanced MR Imaging Techniques for Differentiation of Neuropathic Arthropathy and Osteomyelitis in the Diabetic Foot

Radiographics ◽  
2017 ◽  
Vol 37 (4) ◽  
pp. 1161-1180 ◽  
Author(s):  
Teodoro Martín Noguerol ◽  
Antonio Luna Alcalá ◽  
Luis S. Beltrán ◽  
Marta Gómez Cabrera ◽  
Jordi Broncano Cabrero ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Diabetic Foot ◽  
Imaging Techniques ◽  
Neuropathic Arthropathy

GLENOHUMERAL INSTABILITIES AND THE ROLE OF MR IMAGING TECHNIQUES

1997 ◽  
Vol 5 (4) ◽  
pp. 767-785
Author(s):  
Jeffrey Minkoff ◽  
Steven Stecker ◽  
Gregg Cavaliere
Keyword(s):  
Mr Imaging ◽  
Imaging Techniques

MR IMAGING VERSUS ALTERNATIVE IMAGING TECHNIQUES

1995 ◽  
Vol 3 (4) ◽  
pp. 591-608 ◽  
Author(s):  
Juerg Hodler ◽  
Joseph S. Yu ◽  
Hans C. Steinert ◽  
Donald Resnick
Keyword(s):  
Mr Imaging ◽  
Imaging Techniques

Clinical Stage I Carcinoma of the Uterine Cervix Value of Preoperative Magnetic Resonance Imaging in Assessing Parametrial Invasion

2002 ◽  
Vol 88 (4) ◽  
pp. 291-295 ◽  
Author(s):  
Sandro Sironi ◽  
Massimo Bellomi ◽  
Gaetano Villa ◽  
Silvia Rossi ◽  
Alessandro Del Maschio
Keyword(s):  
Cervical Cancer ◽  
Mr Imaging ◽  
Tumor Invasion ◽  
Early Stage ◽  
Imaging Techniques ◽  
Clinical Stage ◽  
Fast Spin Echo ◽  
Parametrial Invasion ◽  
Early Stage Cervical Cancer ◽  
T2 Weighted Images

Aims and Background The purpose of this prospective study was to assess the efficacy of different MR imaging techniques in the evaluation of parametrial tumor invasion in patients with early stage cervical cancer. Methods A total of 73 consecutive patients, clinically considered to have invasive tumor (<3 cm in diameter) confined to the cervix, underwent MR imaging studies at 1 T, according to the following protocol: fast spin-echo (FSE) T2-weighted, gadolinium-enhanced SE T1-weighted, and fat-suppressed gadolinium-enhanced SE T1-weighted sequences. Images obtained with each sequence were evaluated for parametrial invasion with the use of histopathologic findings as the standard of reference. Results In the assessment of tumor infiltration of the parametrium, with FSE T2-weighted images accuracy was 83%, with SE T1-weighted gadolinium-enhanced images was 65%, and with SE T1-weighted gadolinium-enhanced fat-suppressed images was 72%. The difference between the accuracy rate achieved with FSE T2-weighted images and those obtained with the other two MR sequences was statistically significant (P <0.05). The high negative predictive value (95%) for the exclusion of parametrial tumor invasion was the principal contributor to the staging accuracy obtained with FSE T2-weighted imaging. Conclusions Unenhanced FSE T2-weighted imaging is a reliable method for determining the degree of tumor invasion in patients with early stage cervical cancer. Our data suggest that contrast-enhanced sequences, even with the use of the fat suppression technique, have limited value in assessing tumor extension.

Tumoural portal vein thrombosis

1997 ◽  
Vol 38 (5) ◽  
pp. 655-659
Author(s):  
L. Marti-Bonmati ◽  
E. Lonjedo ◽  
D. Mathieu ◽  
C. Coffin ◽  
C. Poyatos ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Portal Vein ◽  
Imaging Techniques ◽  
Vena Cava ◽  
Tumour Thrombus ◽  
Vein Thrombosis ◽  
Significant Difference ◽  
Before And After ◽  
Portal Veins ◽  
Cellular Carcinoma

Purpose: Intrahepatic thrombus is usually associated with either cirrhosis or hepato-cellular carcinoma (HCC). Most HCCs enhance after the administration of MnDPDP (Teslascan). Our objective was to analyze the enhancement characteristics of tumour portal vein thrombi. Material and Methods: Thrombi affecting the main or segmental portal veins (17 cases) and the suprahepatic inferior vena cava (1 case) were retrospectively selected from a series of 128 patients studied with MR imaging before and after the administration of MnDPDP. Enhancement was assessed qualitatively and quantitatively. Results: All tumour thrombi enhanced after MnDPDP administration. The enhancement was more conspicuous in the GRE images. On the quantitative evaluation, the portal thrombus enhancement was greater for GRE images than SE images. Portal thrombi enhanced more than the liver and the HCCs. There was a significant difference between the enhancement of the HCCs and the thrombi with both MR imaging techniques. Conclusion: The greater enhancement of the tumour thrombus associated with the liver and HCC may suggest that other mechanisms, apart from accumulation of the contrast medium within the hepatocytes inside the thrombi, are involved in thrombus enhancement.

Myocardial perfusion and function by MR imaging techniques

1996 ◽  
pp. 485-497
Author(s):  
Albert de Roos ◽  
Ernst E. van der Wall ◽  
Rob van der Geest ◽  
Johan H. C. Reiber
Keyword(s):  
Myocardial Perfusion ◽  
Mr Imaging ◽  
Imaging Techniques ◽  
And Function
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