Miyazaki Osamu,  Oguma Eiji,  Nishikawa Masanori,  Tanami Yutaka,  Kitami Masahiro,  Hosokawa Takahiro

Final Pr. ID: Poster #: SCI-026

To assess the size and number of pulmonary lesions in patients with hepatoblastoma
Diagnostic criteria of the PRETEXT (Pretreatment Extent of Disease) staging system for hepatoblastoma states that pulmonary lesions are judged to be metastases if there is one nodule greater than 10mm in diameter, or if among several nodules at least one is greater than 5mm in diameter. Read More

Authors:  Miyazaki Osamu , Oguma Eiji , Nishikawa Masanori , Tanami Yutaka , Kitami Masahiro , Hosokawa Takahiro

Keywords:  hepatoblastoma, lung metastasis, chest CT

Orman Gunes,  Sayad Edouard,  Silvacarmona Manuel,  Vogel Tiphanie P.,  Guillerman R

Final Pr. ID: Paper #: 031

The anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are a group of autoimmune diseases characterized by vascular inflammation requiring immunosuppressive treatment. Involvement is most common of the kidneys and lungs, although there is a paucity of literature reporting the chest imaging findings in children. Our goal is to describe the salient chest imaging findings of pediatric AAV to promote recognition by radiologists. Read More

Authors:  Orman Gunes , Sayad Edouard , Silvacarmona Manuel , Vogel Tiphanie P. , Guillerman R

Keywords:  ANCA, vasculitides, chest CT

Horst Kelly,  Zhongxing Zhou,  Hull Nathan,  Thacker Paul,  Thorne Jamison,  Fletcher Joel,  Mccollough Cynthia

Final Pr. ID: Poster #: SCI-001

We sought to evaluate the quality and interpretability of non-contrast chest CT images in pediatric patients for the diagnosis of airway disease at two low-dose levels with and without denoising using a deep convolutional neural network (CNN), with one of the dose levels approaching that in a standard chest radiograph. Read More

Authors:  Horst Kelly , Zhongxing Zhou , Hull Nathan , Thacker Paul , Thorne Jamison , Fletcher Joel , Mccollough Cynthia

Keywords:  reduced-dose chest CT, CNN denoising, iterative reconstruction

Siegel Marilyn,  Ramirez Giraldo Juan Carlos

Final Pr. ID: Paper #: 037

To develop diagnostic reference ranges (DRRs) for pediatric contrast-enhanced dual-energy CT (DECT) examinations as a function of patient size and radiation output of the CT scanner with comparison to conventional single energy CT (SECT). Read More

Authors:  Siegel Marilyn , Ramirez Giraldo Juan Carlos

Keywords:  Dual-Energy CT, Chest CT, Dose Reduction

Guillen Gutierrez Cinthia,  Rodriguez Garza Claudia,  Elizondo Riojas Guillermo,  Hernández Grimaldo Edgar,  Garza Acosta Andrea

Final Pr. ID: Poster #: EDU-020 (S)

Cystic fibrosis (CF) is caused by autosomal-recessive mutations in the CF transmembrane regulator (CFTR) gene. Results in production of abnormally viscous mucus and secretions in the lungs of patients
It is the most common genetic disorder leading to chronic pulmonary disease in children.

In the lung, the cystic fibrosis transmembrane regulator (CFTR) is a protein responsible for efflux of chloride and inhibition of the sodium channel's activity which controls the influx of sodium. Pulmonary manifestations of CF includes
Bronchiectasis
Pneumothorax
Recurrent bacterial infection
Pulmonary arterial hypertension

Chest XRAY: is inferior to CT for the assessment of patients with known bronchiectasis. Nevertheless, radiography remains a useful modality for assessing the pulmonary complications associated with bronchiectasis, because of its low cost, availability, low radiation dose, and speed of acquisition

Brasfield scoring system
The score is based on conventional chest radiographic findings and has been reported to have good correlation with pulmonary function.
There is a maximum score of 25 with points subtracted based on the score from each of the following categories:

Air trapping: generalized pulmonary overdistension (sternal bowing, depression of diaphragms, or thoracic kyphosis)
Linear markings Linear opacification due to prominence of bronchi; may be seen as parallel line densities, branching, or “end-on” circular densities (bronchial wall thickening)
Nodular cystic lesions: multiple discrete rounded densities ≥0.5 cm in diameter, with either radiopaque or radiolucent centers (bronchiectasis); does not refer to irregular linear markings; confluent nodules not classified as large lesion
Large lesions: segmental or lobar atelectasis or consolidation, including acute pneumonia.
General severity: impression of overall severity on chest x-ray

HRCT has become indispensable in the monitoring of CF patients and is used to guide therapy and assess response to treatment, as it not only correlates with lung function tests.
Scans are repeated every 6 to 18 months depending on the clinical course.

BHALLA SCORE SYSTEM
Bhalla system can assess the degree of lung involvement and the evolution of the damages caused by lung disease based on various radiological findings. It values
Bronchiectasias
Peribronchial thickening
Extent of bronchiectasias
Extent of mucous plugs
Abscesses or sacculations
Bronchial generations affected
Number of bullae
Extent of emphysema
Collapse or consolidation Read More

Authors:  Guillen Gutierrez Cinthia , Rodriguez Garza Claudia , Elizondo Riojas Guillermo , Hernández Grimaldo Edgar , Garza Acosta Andrea

Keywords:  Chest CT, Chest Xray, Education