scholarly journals Multiparametric MR Imaging of Sinonasal Diseases: Time-Signal Intensity Curve– and Apparent Diffusion Coefficient–Based Differentiation between Benign and Malignant Lesions

2011 ◽  
Vol 32 (11) ◽  
pp. 2154-2159 ◽  
Author(s):  
M. Sasaki ◽  
M. Sumi ◽  
S. Eida ◽  
Y. Ichikawa ◽  
T. Sumi ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Mr Imaging ◽  
Apparent Diffusion Coefficient ◽  
Signal Intensity ◽  
Time Signal ◽  
Intensity Curve ◽  
Signal Intensity Curve ◽  
Apparent Diffusion ◽  
Malignant Lesions

Automatic ROI construction for analyzing time–signal intensity curve in dynamic contrast-enhanced MR imaging of the breast

2015 ◽  
Vol 9 (1) ◽  
pp. 30-36 ◽  
Author(s):  
Koya Fujimoto ◽  
Yasuyuki Ueda ◽  
Shohei Kudomi ◽  
Teppei Yonezawa ◽  
Yuki Fujimoto ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Signal Intensity ◽  
Time Signal ◽  
Intensity Curve ◽  
Signal Intensity Curve ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced

scholarly journals Apparent diffusion coefficient for differentiating between benign and malignant hepatic focal lesions

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Sherif Abugamra ◽  
Aya Yassin ◽  
Asmaa Saber Mostafa Abdel-Rehim ◽  
Dina Sayed Sheha
Keyword(s):  
Hepatocellular Carcinoma ◽  
Diffusion Coefficient ◽  
Apparent Diffusion Coefficient ◽  
Focal Lesion ◽  
Benign Lesions ◽  
Focal Lesions ◽  
Significant Difference ◽  
Apparent Diffusion ◽  
Malignant Lesions ◽  
The Mean

Abstract Background The aim of this study was to prospectively evaluate the role of diffusion weight MRI (DWI) in the characterization of hepatic focal lesions by using apparent diffusion coefficient (ADC). Thirty patients (18 women, 12 men; mean age 48.5 years) with hepatic focal lesions were included in this study. Patients underwent DW MR imaging with the SPLICE sequence. ADC of each focal lesion carcinoma was calculated from DW MR Images obtained with low and high b values. ADCs were compared among pathological types of focal lesions. Results Among the 30 patients included in the study, 46 focal lesions were detected. Twenty-four lesions were metastatic lesions from primary cancer, 7 lesions were hepatocellular carcinoma (HCC), 9 lesions were hemangiomas, and 6 lesions were simple cysts. There was highly significant difference between the mean ADC of the malignant lesions (metastasis and HCC) and the mean ADC of benign lesions (hemangiomas and cysts). The ADC of malignant lesion was much less than that of benign lesion. The mean ADC of malignant lesions (n = 31) was 0.73 ± 0.19 × 10−3 mm2/s, and the mean ADC of benign lesions (n = 15) was 1.94 ± 0.68 × 10−3 mm2/s (p value < 0.001). There was no significant difference between the cysts and hemangiomas. There was no statistically significant difference between the metastases and hepatocellular carcinoma. Conclusion ADCs values were able to differentiate benign from malignant lesions. ADC should be considered in the work up of patients with hepatic focal lesions.

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