Multiparametric combinations were computed using logistic regression analysis: (1) IP+: Initial-phase enhancement and ADC; (2) Curve: Initial-phase enhancement and delayed-phase enhancement; (3) Curve+: Curve and ADC. The diagnostic performances of these feature combinations to diagnose malignancy ...
In addition, using a clinical DCE-MRI data set with an expertly labeled suspicious region, it is shown that the proposed algorithm significantly reduces the variability of the enhancement curves at the pixel level yielding more pronounced uptake and washout phases. 展开 ...
Oneofthethingswerunintoare'littlebrightobjects'.Thesefociareenhancingareasoflessthan5mmindiameterandaretoosmalltocharacterize.Theyhavepersistenttype1curves.Theselesionsaretypicallystableonfollow-upandareconsideredtobeapartofthenormalbackgroundenhancementpatterninthebreast.Masses MorphologyShape Amasscanbe...
Tumor MR enhancement patterns Both patterns of contrast uptake and estimated wash-in/wash-out rates from a lesion can provide clues as to its nature. A popular classification scheme by Kuhl et al. based on the shape of the contrast-time intensity curves is illustrated above. Breast masses with...
CONTENT ORGANIZATION This exhibit is a collection of imaging examples of biopsy proven benign enhancing lesions complete with enhancement curves from examinations of women on a 3-T MRI. The description of each category of lesions includes a discussion of both the morphologic features and enhancement ...
Can semi-quantitative evaluation of uncertain (type II) time-intensity curves improve diagnosis in breast DCE-MRI?[J] . Fusco, Roberta,Filice, Salvatore,Granata, Vincenza,Mandato, Ylenia,Porto, Annamaria,D’Aiuto, Massimiliano,Rinaldo, Massimo,Di Bonito, Maurizio,Sansone, Mario,Sansone, Carlo,...
Currently, breast MRI is the gold standard imaging tool for assessing ILC. Emerging tools such as contrast-enhanced spectral mammography (CESM) utilise similar neovascularity principles of tumour enhancement to those of MRI. We aim to evaluate the clinical utility of CESM vs. Breast MRI for ...
The time/signal intensity curves revealed the rapid and strong enhancement of malignancies, the gradual and strong enhancement of the only fibroadenoma studied, and the gradual and mild contrast uptake of benign dysplasia. In 1992, in nearly 1000 dynamic examinations, Kaiser and Reiser reported 98.3...
At magnetic resonance imaging (MRI), intraductal papillomas often present as small smooth masses, however, often with strong enhancement with type 2 or 3 time intensity curves. The result of the MR analysis is therefore not infrequently inconclusive in order to characterize the mass as benign or...
Figures 3 and 4 show examples of some contrast-enhanced lesions with circumscribed margins, persistent signal enhancement time curves, and no restricted diffusivity, features compatible with benign findings (BIRADS-2). Figure 4. Illustrates the advantage of MRI scans in presence of multiple findings;...