Shivani Ahlawat MD, Presenter: Nothing to Disclose

Shadpour Demehri MD, Abstract Co-Author: Nothing to Disclose

Laura Marie Fayad MD, Abstract Co-Author: Nothing to Disclose

1. Diffusion weighted imaging (DWI) is a functional non-contrast MRI technique that adds little time to a routine soft tissue mass MR imaging protocol. 2. Soft tissue masses can be categorized by their different imaging patterns on quantitative DWI with apparent diffusion coefficient (ADC) mapping. 3. ADC values obtained by quantitative DWI often correspond with the histologic composition of tumors, and non-neoplastic soft tissue masses have a variable appearance that can mimic tumors.  

1. Review of the literature on quantitative DWI for the characterization of soft tissue masses                        Systematic review: Characterization for malignancy 2. Appraisal of available DWI techniques for imaging Impact on ADC values of soft tissue masses 3. Quantitative DWI patterns in soft tissue masses a. Non-neoplastic processes i. Hematoma ii. Myositis Ossificans iii. Abscess iv. Soft tissue cysts: Ganglion, lymphocele, seroma v. Post-operative nodular scar b. Neoplasms: i. Adipocytic ii. Fibroblastic/Myofibroblastic iii. So-Called Fibriohistiocytic iv. Smooth Muscle v. Skeletal Muscle vi. Vascular vii. Gastrointestinal Stromal viii. Peripheral Nerve Sheath ix. Tumors of Uncertain Differentiation x. Undifferentiated/Unclassified Sarcoma  

http://abstract.rsna.org/uploads/2014/14004935/14004935_1tql.pdf

Ahlawat, S, Demehri, S, Fayad, L, Patterns in Quantitative Diffusion-weighted Imaging of Soft Tissue Masses That Are Associated with Different Histologies.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004935.html