Ultrafast pediatric chest computed tomography: comparison of free-breathing vs. breath-hold imaging with and without anesthesia in young children

2018 ◽  
Vol 49 (3) ◽  
pp. 301-307 ◽  
Author(s):  
Aya Kino ◽  
Evan J. Zucker ◽  
Anita Honkanen ◽  
Jerry Kneebone ◽  
Jia Wang ◽  
...  
2020 ◽  
Vol 55 (5) ◽  
pp. 1161-1168 ◽  
Author(s):  
Merel C. J. Oudraad ◽  
Wieying Kuo ◽  
Tim Rosenow ◽  
Eleni‐Rosalina Andrinopoulou ◽  
Stephen M. Stick ◽  
...  

2020 ◽  
Vol 36 (2) ◽  
pp. 81-86
Author(s):  
Elizabeth M. Holl ◽  
Ashley P. Marek ◽  
Rachel M. Nygaard ◽  
Chad J. Richardson ◽  
Donavon J. Hess

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Mohammad Ashkan Moslehi ◽  
Mohammad Hadi Imanieh ◽  
Ali Adib

Foreign body aspiration (FBA) is a common incidence in young children. Leeches are rarely reported as FBA at any age. This study describes a 15-year-old female who presented with hemoptysis, hematemesis, coughs, melena, and anemia seven months prior to admission. Chest X-ray showed a round hyperdensity in the right lower lobe. A chest computed tomography (CT) demonstrated an area of consolidation and surrounding ground glass opacities in the right lower lobe. Hematological investigations revealed anemia. Finally, bronchoscopy was performed and a 5 cm leech was found within the rightB7-8bronchus and removed by forceps and a Dormia basket.


2017 ◽  
Vol 47 (7) ◽  
pp. 831-837 ◽  
Author(s):  
Boris Bodelle ◽  
Constanze Fischbach ◽  
Christian Booz ◽  
Ibrahim Yel ◽  
Claudia Frellesen ◽  
...  

2019 ◽  
Vol 70 (2) ◽  
pp. 181-185
Author(s):  
Takanori Masuda ◽  
Takeshi Nakaura ◽  
Yoshinori Funama ◽  
Tomoyasu Sato ◽  
Tetsuya Nitta ◽  
...  

Introduction To evaluate the effect of sex, age, height, cardiac output (CO), total body weight (TBW), body surface area (BSA), and lean body weight (LBW) on vessel enhancement of the ascending aorta in pediatric chest computed tomography angiography (c-CTA). Materials and Methods This retrospective study received institutional review board approval; parental prior informed consent for inclusion was obtained for all patients. All 50 patients were examined using our routine protocol; iodine (600 mg/kg) was the contrast medium (CM). Unenhanced and contrast-enhanced scans were obtained. We calculated the CM volume per vessel enhancement and performed univariate and multivariate linear regression analysis of the relationship between CM volume per vessel enhancement and each of the body parameters. Results All patient characteristics were significantly related to CM volume per vessel enhancement ( P < .05). Multivariate linear regression analysis revealed a significant correlation between CM volume per vessel enhancement and TBW, BSA, and LBW, but not the patient sex, age, CO, and height. The LBW model for CM volume per vessel enhancement yielded the highest determination coefficient (R2 = .913) and the lowest Akaike Information Criterion (400.324). Conclusions Our findings support the delivery of an iodine dose adjusted to the LBW at c-CTA.


2017 ◽  
Vol 52 (11) ◽  
pp. 1414-1423 ◽  
Author(s):  
Wieying Kuo ◽  
Thomas Soffers ◽  
Eleni-Rosalina Andrinopoulou ◽  
Tim Rosenow ◽  
Sarath Ranganathan ◽  
...  

2017 ◽  
Vol 52 (3) ◽  
pp. 155-162 ◽  
Author(s):  
Meike Weis ◽  
Thomas Henzler ◽  
John W. Nance ◽  
Holger Haubenreisser ◽  
Mathias Meyer ◽  
...  

2016 ◽  
Vol 3 (3) ◽  
pp. 407-413 ◽  
Author(s):  
Jen Yu ◽  
Sean S. Park ◽  
Michael G. Herman ◽  
Katja Langen ◽  
Minesh Mehta ◽  
...  

Purpose: To assess dose errors caused by the interplay effects of free-breathing (FB) motion and to assess the value of breath-hold (BH) in terms of cardiac dose reduction for scanning beam proton therapy (SBPT). Materials and Methods: Three patients with left-sided breast cancer previously treated with photon therapy were included in this dosimetric study: 2 following breast-conserving surgery with 2 hypothetical target volumes (whole breast alone and whole breast plus regional nodes, including supraclavicular, axillary, and internal mammary lymph nodes); and 1 postmastectomy, with the target volume including the chest wall plus regional nodes. SBPT plans were generated with various beam angles that ranged between 2 tangential directions. For treatment with FB, nominal dose and dose with interplay effects considered were calculated based on FB 4-dimensional computed tomography scans. SBPT plans on the BH computed tomography were also calculated for one of the patients, who was selected to be treated with photon therapy with BH. Results: Dosimetric differences between nominal and interplay dose were small (average target mean dose, −0.06 Gy; range, −0.23 to 0.06 Gy; average heart mean dose, 0.001 Gy; range, −0.12 to 0.05 Gy). The largest dose deviations occurred in plans calculated with tangential beam arrangements; the smallest was noted with the en face beam. The average value of the mean heart dose with FB was <1 Gy. For the selected patient, the mean heart doses were 0.5 and 0.2 Gy for FB and BH, respectively. Conclusion: Dose deviations caused by the interplay effects of respiratory motion during FB do not have a significant impact in SBPT with en face beam arrangement. BH does not significantly reduce cardiac dose. SBPT delivery is feasible with FB and can provide optimal target coverage and maximal sparing of the cardiopulmonary system, which can translate into improved clinical outcomes and a decrease in treatment-related morbidity in left-sided breast cancer patients or those who require internal mammary node coverage.


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