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2015 ; 45
(13
): 1901-15
Nephropedia Template TP
gab.com Text
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English Wikipedia
Magnetic resonance imaging in children: common problems and possible solutions
for lung and airways imaging
#MMPMID26342643
Ciet P
; Tiddens HA
; Wielopolski PA
; Wild JM
; Lee EY
; Morana G
; Lequin MH
Pediatr Radiol
2015[Dec]; 45
(13
): 1901-15
PMID26342643
show ga
Pediatric chest MRI is challenging. High-resolution scans of the lungs and
airways are compromised by long imaging times, low lung proton density and
motion. Low signal is a problem of normal lung. Lung abnormalities commonly cause
increased signal intenstities. Among the most important factors for a successful
MRI is patient cooperation, so the long acquisition times make patient
preparation crucial. Children usually have problems with long breath-holds and
with the concept of quiet breathing. Young children are even more challenging
because of higher cardiac and respiratory rates giving motion blurring. For these
reasons, CT has often been preferred over MRI for chest pediatric imaging.
Despite its drawbacks, MRI also has advantages over CT, which justifies its
further development and clinical use. The most important advantage is the absence
of ionizing radiation, which allows frequent scanning for short- and long-term
follow-up studies of chronic diseases. Moreover, MRI allows assessment of
functional aspects of the chest, such as lung perfusion and ventilation, or
airways and diaphragm mechanics. In this review, we describe the most common MRI
acquisition techniques on the verge of clinical translation, their problems and
the possible solutions to make chest MRI feasible in children.