AJR. American journal of roentgenology
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Athletes can have pain derived from fractures or alternate pathology. Skeletal scintigraphy may detect abnormalities before anatomic imaging and provides a practical tool for whole-body imaging. However, study interpretation in children can be challenging. This pictorial essay describes a technique for pediatric skeletal scintigraphy and reviews findings commonly encountered in athletes. ⋯ Skeletal scintigraphy complements anatomic findings in pediatric athletes. Familiarity with imaging technique and study interpretation can improve diagnosis.
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AJR Am J Roentgenol · Nov 2010
ReviewEmbryology and developmental defects of the interatrial septum.
The various types of atrial septal defects (ASDs) can be differentiated on the basis of their imaging appearance on MDCT. ⋯ It is fundamental for the cardiac imager to understand the embryologic development of the interatrial septum and the morphogenic differences of ASDs.
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AJR Am J Roentgenol · Nov 2010
A prospective evaluation of dose reduction and image quality in chest CT using adaptive statistical iterative reconstruction.
The purpose of this study was to compare the subjective image quality, image noise, and radiation dose of chest CT images reconstructed with a 30% blend of iterative reconstruction and 70% conventional filtered back projection (FBP) with those of images generated with 100% FBP. ⋯ In clinically indicated chest CT examinations, ASIR images had better image quality and less image noise at a lower radiation dose than images acquired with a conventional FBP reconstruction algorithm.
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AJR Am J Roentgenol · Nov 2010
ReviewIncidental thyroid nodules on chest CT: Review of the literature and management suggestions.
This article will review the current literature regarding the detection of thyroid nodules with an emphasis on CT diagnosis. We will also discuss management strategies. ⋯ With advances in cross-sectional imaging, the detection of incidental thyroid nodules has increased significantly. Detection of thyroid nodules is common on chest CT that is being performed for unrelated reasons. The workup of these nodules can be timeconsuming and expensive.
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AJR Am J Roentgenol · Nov 2010
Radiation dose to the pediatric cardiac catheterization and intervention patient.
The radiation dose from cardiac catheterization is particularly relevant when treating children because of their greater radiosensitivity compared with adults. Moreover, cardiac catheterization is being used increasingly for interventional radiology procedures, possibly resulting in higher patient radiation doses. This article reports the radiation doses and related factors, such as fluoroscopy time, for children who underwent cardiac catheterization and children who underwent other interventional radiology procedures. ⋯ There was a good correlation between the DAP and weight and between DAP and weight-fluoroscopic time product for children who underwent cardiac catheterization or an interventional radiology procedure. Therefore, body weight is important for determining radiation dose to children undergoing cardiac catheterization or an interventional radiology procedure. The normalized DAP (i.e., DAP divided by body weight), fluoroscopy time, and number of cine runs were greater in children who underwent an interventional radiology procedure than in those who underwent cardiac catheterization. Therefore, the radiation dose to children from interventional radiology procedures is a more critical issue.