Purpose
of this study is: Assessing the role of Diffusion weighted imaging with ADC mapping in the evaluation of uterine cervical cancer post therapy regarding tumor residual, recurrence or post treatment benign changes/ complications after tumor resection and/or chemotherapy/radiotherapy.
Methods
The study included 48 female underwent cervical cancer treatment, referred to Radio diagnosis Department of National Cancer Institute for post therapy assessment. Each patient included in the study was subjected to full history taking, reviewing medical sheet and MR examination including: Conventional MR examination and Diffusion Weighted imaging.
Results
The study showed that the use of quantitative DW imaging with ADC mapping provide added value in the detection of post-treatment malignant masses and differentiating it from post-treatment benign changes.
Conclusion
The current application of diffusion Weighted MRI as a routine with conventional MRI sequences increased the accuracy of detection of post therapy benign and malignant masses , Our results suggested also that the use of ADC can be helpful in differentiating post-treatment malignant masses from benign post-treatment changes.
Purpose
to assess the role of Diffusion-weighted MRI in diagnosis of acute pancreatitis by measure the apparent diffusion coefficient (ADC) values detected by diffusion-weighted imaging (DWI) in acute pancreatitis and compare them with the control group
Methods and Material
sixteen patients with acute pancreatitis and sixteen normal controls underwent DWI with b values (0,200 & 800). Apparent diffusion coefficient (ADC) maps are generated from DWI and ADC values were calculated for pancreas and compared the results between the two groups
Results
The mean pancreatic ADC in the AP group (1.17 × 10(-3) mm(2)/s ± 0.2) was significantly lower than in the normal group (1.6 × 10(-3) mm(2)/s ± 0.32). There was no significant difference in mean ADCs between each of the pancreatic segments in the controls. A threshold ADC value of 1.38 × 10-3 mm(2)/s yielded a sensitivity of 93% and specificity of 87% for detecting acute pancreatitis. Pancreatic ADCs are significantly lower in patients with AP than normal controls.
Conclusion
MR diffusion imaging could be an important supportive tool in diagnosis of acute pancreatitis
Purpose
To evaluate the role of combined positron emission tomography and computed tomography (PET/CT) imaging in the detection of tumors of unknown origin.
Methods
This study included 20 cases presented with pathologically proved metastases of unknown primary or with clinic-radiological suspicion of metastases with unknown primary.
Results
The number of patients with true positive primary tumor sites was 14 (70%), 2 patients with false-positive results (10%), 2 patients with true negative results (10%) and 2 patients with false-negative results (10%). A sensitivity of 87.5% was achieved, with a specificity of 50% and a total accuracy of 80%. The Positive predictive value was 87.5%%, while the negative predictive value was 50%. The detection rate of the origin of the primary tumor was 70%.
Conclusion
whole-body FDG-PET/CT has to be considered a useful tool in evaluating metastases from UPT, allowing identification of primary tumors and modifying the stage of the disease and affect the management.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.