Not Available
Society for Pediatric Radiology – Poster Archive
Final ID: Poster #: EDU-046
Don’t be a Dweeb, use DWIBS in Pediatric Body Imaging
Purpose or Case Report: The purpose of this exhibit is:
-To discuss the role of DWIBS (diffusion-weighted whole body imaging with background body signal suppression) in the evaluation of pediatric body imaging pathology and to identify common indications for its use
-To review normal DWIBS findings in various body organs and to understand imaging pitfalls
-To provide examples of pathological conditions seen on DWIBS
Methods & Materials: We present cases in which DWIBS was used as part of a body MR study performed at our institution over the last 3 years.
Results: Several cases from our institution are presented to illustrate normal and abnormal findings of DWIBS imaging in children. Pitfalls will be emphasized. Technical aspects of DWIBS and the current role of the method in pediatric body imaging will be discussed.
Conclusions: DWIBS is a promising imaging technique increasingly being used in pediatric patients. The feasibility of free breathing and its relative short scan duration makes it ideal for pediatric patients. DWIBS sequence is performed with heavy diffusion weighting (b = 1000 sec/mm2) and fat suppression using an inversion or chemical shift–selective pre-pulse, such as STIR. Multiple thin axial slices with a high number of signal averages are acquired during free breathing, which is a unique feature making it ideal for its use in children. The axial source DW images may be reconstructed in the coronal plane and the gray scale may be inverted to resemble PET images. This is convenient for analyzing the distribution of primary lesions and their metastases. On DWIBS images there is suppression of background tissues with visualization of only those structures and lesions with low diffusion values. DWIBS aids in neoplasm detection, as these have restricted diffusion and characteristically display high signal with high b-values. DWIBS is also playing an expanding role in the detection of inflammatory processes, in the assessment of multifocal infection and abscess formation, and in monitoring response to treatment.
-To discuss the role of DWIBS (diffusion-weighted whole body imaging with background body signal suppression) in the evaluation of pediatric body imaging pathology and to identify common indications for its use
-To review normal DWIBS findings in various body organs and to understand imaging pitfalls
-To provide examples of pathological conditions seen on DWIBS
Methods & Materials: We present cases in which DWIBS was used as part of a body MR study performed at our institution over the last 3 years.
Results: Several cases from our institution are presented to illustrate normal and abnormal findings of DWIBS imaging in children. Pitfalls will be emphasized. Technical aspects of DWIBS and the current role of the method in pediatric body imaging will be discussed.
Conclusions: DWIBS is a promising imaging technique increasingly being used in pediatric patients. The feasibility of free breathing and its relative short scan duration makes it ideal for pediatric patients. DWIBS sequence is performed with heavy diffusion weighting (b = 1000 sec/mm2) and fat suppression using an inversion or chemical shift–selective pre-pulse, such as STIR. Multiple thin axial slices with a high number of signal averages are acquired during free breathing, which is a unique feature making it ideal for its use in children. The axial source DW images may be reconstructed in the coronal plane and the gray scale may be inverted to resemble PET images. This is convenient for analyzing the distribution of primary lesions and their metastases. On DWIBS images there is suppression of background tissues with visualization of only those structures and lesions with low diffusion values. DWIBS aids in neoplasm detection, as these have restricted diffusion and characteristically display high signal with high b-values. DWIBS is also playing an expanding role in the detection of inflammatory processes, in the assessment of multifocal infection and abscess formation, and in monitoring response to treatment.
More abstracts on this topic:
Ascent of the conus medullaris level in infants less than 3 months old with borderline or low position of the conus.
Osman Radya, Karmazyn Boaz, Marine Megan, Wanner Matthew, Radhakrishnan Rupa, Supakul Nucharin, Ducis Katrina, Jennings Samuel, Jea Andrew
Impact of diffusion-weighted sequences in 18F-FDG PET/MR whole-body pediatric oncologic imagingSanders Vanessa, Khanna Geetika, Mhlanga Joyce, Ponisio Maria
Poster____EDU-046.pdf
Please note that this is a separate login, not connected with your credentials used for the SPR main website.