scholarly journals Development, validation, qualification, and dissemination of quantitative MR methods: Overview and recommendations by the ISMRM quantitative MR study group

2021 ◽  
Author(s):  
Sebastian Weingärtner ◽  
Kimberly L. Desmond ◽  
Nancy A. Obuchowski ◽  
Bettina Baessler ◽  
Yuxin Zhang ◽  
...  
Keyword(s):  
Study Group ◽  
Quantitative Mr ◽  
Mr Study

The parietal lobes in schizophrenia: A quantitative MR study

1996 ◽  
Vol 39 (7) ◽  
pp. 639 ◽  
Author(s):  
R. Donnino ◽  
M.E. Shenton ◽  
D. Iosifescu ◽  
O. Hirokazu ◽  
C.G. Wible ◽  
...  
Keyword(s):  
Parietal Lobes ◽  
Quantitative Mr ◽  
Mr Study

White matter and cortical changes in atypical parkinsonisms: A multimodal quantitative MR study

2017 ◽  
Vol 39 ◽  
pp. 44-51 ◽  
Author(s):  
Stefano Zanigni ◽  
Stefania Evangelisti ◽  
Claudia Testa ◽  
David N. Manners ◽  
Giovanna Calandra-Buonaura ◽  
...  
Keyword(s):  
White Matter ◽  
Quantitative Mr ◽  
Atypical Parkinsonisms ◽  
Mr Study

919: Ureteral Extension in Childhood Renal Tumors: A Report From the National Wilms Tumor Study Group (NWTSG)

2007 ◽  
Vol 177 (4S) ◽  
pp. 305-305
Author(s):  
Shane Daley ◽  
Michael Ritchey ◽  
Robert Shamberger ◽  
Robert Sawin ◽  
Thomas Hamilton ◽  
...  
Keyword(s):  
Wilms Tumor ◽  
Renal Tumors ◽  
Study Group ◽  
Tumor Study ◽  
Tumor Study Group

Skip Metastases in Osteosarcoma: Experience of the Cooperative Osteosarcoma Study Group

2007 ◽  
Vol 2007 ◽  
pp. 286-287
Author(s):  
R.J. Arceci
Keyword(s):  
Study Group ◽  
Skip Metastases

Aortic arch calcification is strongly associated with coronary artery calcification

VASA ◽  
2015 ◽  
Vol 44 (2) ◽  
pp. 106-114 ◽  
Author(s):  
Adem Adar ◽  
Hakan Erkan ◽  
Tayyar Gokdeniz ◽  
Aysegul Karadeniz ◽  
Ismail G. Cavusoglu ◽  
...  
Keyword(s):  
Coronary Artery ◽  
High Risk ◽  
Aortic Arch ◽  
Chest Radiography ◽  
Coronary Artery Calcification ◽  
Independent Predictor ◽  
Study Group ◽  
Discriminative Performance ◽  
Sensitivity Specificity ◽  
Aortic Arch Calcification

Background: We aimed to investigate the association between aortic arch and coronary artery calcification (CAC). We postulated that low‐ and high‐risk CAC scores could be predicted with the evaluation of standard chest radiography for aortic arch calcification (AAC). Patients and methods: Consecutive patients who were referred for a multidetector computerized tomography (MDCT) examination were enrolled prospectively. All patients were scanned using a commercially available 64‐slice MDCT scanner for the evaluation of CAC score. A four‐point grading scale (0, 1, 2 and 3) was used to evaluate AAC on the standard posterior‐anterior chest radiography images. Results: The study group consisted of 248 patients. Median age of the study group was 52 (IQR: 10) years, and 165 (67 %) were male. AAC grades (r = 0.676, p < 0.0001) and age (r = 0.518, p < 0.0001) were significantly and positively correlated with CAC score. Presence of AAC was independently associated with the presence of CAC (OR: 11.20, 95 % CI 4.25 to 29.52). An AAC grade of ≥ 2 was the strongest independent predictor of a high‐risk CAC score (OR: 27.42, 95 % CI 6.09 to 123.52). Receiver operating characteristics curve analysis yielded a strong predictive ability of AAC grades for a CAC score of ≥ 100 (AUC = 0.892, P < 0.0001), and ≥ 400 (AUC = 0.894, P < 0.0001). Absence of AAC had a sensitivity, specificity and accuracy of 90 %, 84 % and 89 %, respectively, for a CAC score of < 100. An AAC grade of ≥ 2 predicted a CAC score of ≥400 with a sensitivity, specificity and accuracy of 68 %, 98 % and 95 %, respectively. Conclusions: AAC is a strong and independent predictor of CAC. The discriminative performance of AAC is high in detecting patients with low‐ and high‐risk CAC scores.

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