Comments on ‘Tumor apparent diffusion coefficient as an imaging biomarker to predict tumor aggressiveness’

2017 ◽  
Vol 30 (7) ◽  
pp. e3746
Author(s):  
Li Xu ◽  
Rong-Pin Wang ◽  
SiWei Zhang ◽  
Zhi-Guang Chen
Keyword(s):  
Diffusion Coefficient ◽  
Apparent Diffusion Coefficient ◽  
Imaging Biomarker ◽  
Tumor Aggressiveness ◽  
Apparent Diffusion

scholarly journals Apparent Diffusion Coefficient as an MR Imaging Biomarker of Low-Risk Ductal Carcinoma in Situ: A Pilot Study

Radiology ◽  
2011 ◽  
Vol 260 (2) ◽  
pp. 364-372 ◽  
Author(s):  
Mami Iima ◽  
Denis Le Bihan ◽  
Ryosuke Okumura ◽  
Tomohisa Okada ◽  
Koji Fujimoto ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Pilot Study ◽  
Mr Imaging ◽  
Apparent Diffusion Coefficient ◽  
Ductal Carcinoma In Situ ◽  
Carcinoma In Situ ◽  
Ductal Carcinoma ◽  
Imaging Biomarker ◽  
Apparent Diffusion

scholarly journals Apparent Diffusion Coefficient Is a Novel Imaging Biomarker of Myopathic Changes in Liver Cirrhosis

2018 ◽  
Vol 7 (10) ◽  
pp. 359 ◽  
Author(s):  
Alexey Surov ◽  
Lisa Paul ◽  
Hans Meyer ◽  
Stefan Schob ◽  
Cornelius Engelmann ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Liver Cirrhosis ◽  
Apparent Diffusion Coefficient ◽  
Meld Score ◽  
Imaging Biomarker ◽  
Control Group ◽  
Diffusion Weighted ◽  
Apparent Diffusion ◽  
Adc Values ◽  
Myopathic Changes

Diffusion weighted imaging can provide information regarding tissue composition and can quantitatively characterize different pathological changes by means of apparent diffusion coefficient (ADC). The study comprised of 114 patients with liver cirrhosis—22 women and 92 men with a mean age of 56.5 ± 9.0 years. In all patients, the Model for End Stage-Liver Disease (MELD) score was calculated. Furthermore, 12 healthy persons (5 women, 7 men), mean age, 42.1 ± 16.2 years, were investigated as a control group. In all cases, magnetic resonance imaging of the liver/trunk was performed using different 3T scanners and diffusion weighted images were obtained with a multi-shot SE-EPI sequence. In all cases, polygonal regions of interest were manually drawn on the ADC maps along the contours of the iliopsoas and paravertebral muscles. The comparison of ADC values in groups was performed by Mann-Whitney-U tests. The association between ADC and MELD score was calculated by Spearman’s rank correlation coefficient. ADC values of the skeletal musculature were statistically much higher in comparison to those in the control group: 1.85 ± 0.46 × 10−3 mm2 s−1 vs. 1.23 ± 0.12 × 10−3 mm2 s−1, p = 0.001. ADC values showed statistically significant correlation with the MELD score (r = 0.473, p = 0.0001). Furthermore, ADC values differed between the subgroups with different values of the MELD score. ADC values correlated slightly with lactate dehydrogenase (LDH) (r = 0.381, p = 0.0001) and tended to correlate with C-reactive protein (CRP) (r = 0.171, p = 0.07) and alanine aminotransferase (ALAT) (r = −0.167, p = 0.076). ADC can reflect muscle changes in liver cirrhosis and shows statistically significant correlation with the MELD score. Therefore, ADC can be used as an imaging biomarker of myopathic changes in liver cirrhosis.

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