Imaging of the temporal bone in children using low‐dose 320‐row area detector computed tomography

Tada, Akio; Sato, Shuhei; Masaoka, Yoshihisa; Kanazawa, Susumu

doi:10.1111/1754-9485.12596

Cited by 8 publications

(9 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These were evaluated independently by the same two radiologists. These anatomic landmarks were chosen based on two previous studies (4,8).…”

Section: Methodsmentioning

confidence: 99%

“…Based on the ALARA (as low as reasonably achievable) principle, multiple approaches to lower radiation exposure have been proposed, including reducing the tube voltage and to acquire isotropic volumes of an entire organ with a single rotation of the gantry; this is possible with a volumetric 320-row detector CT system. Low kVp and mAs imaging is another strategy to effectively reduce radiation dose that has recently become popular (4)(5)(6)(7). Scanning with a 320-row detector CT provides 16-cm z-axis coverage in a single 0.35-s rotation.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In recent years, various articles addressing dose reduction strategies in CT imaging of the temporal bone have been published (1,4,7,8,13). One of these was performed to compare the image quality obtained using low-dose and standard-dose 320-row temporal bone CT in pediatric patients by Tada et al (4). In this study, we aimed to compare different tube voltages (120, 135, and 80 kVp) and currents (75 and 5 mAs) and to evaluate the image quality of low-dose CT of the temporal bone using a volumetric 320-row multidetector CT technique.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Low-dose non-contrast examination of the temporal bone using volumetric 320-row computed tomography

et al. 2018

View full text Add to dashboard Cite

Background 320-row volume computed tomography (CT) allows CT dose to be reduced while maintaining image quality. Purpose To evaluate image quality of low-dose non-contrast temporal bone CT using single volumetric 320-row multidetector CT technique. Material and Methods A total of 125 patients were included in our study. Two low-dose protocols, including 135 kV tube voltage with 5 mAs tube current and 80 kV tube voltage with 5 mAs tube current, were chosen based on results of present phantom study. For evaluating subjective image quality, conspicuity of anatomic landmarks were assigned a score using a five-point scale. Objective image quality analysis was performed by analyzing regions of interest on axial soft-tissue and bone reconstructions. Effective dose was calculated from dose-length product. Results Mean effective radiation dose for 120 kV and 75 mAs protocol (control group) was 0.29 ± 0.04 mSv; for 135 kV and 5 mAs protocol (study group A), this value was 0.02 ± 0. 003 mSv; and for 80 kV and 5 mAs protocol (study group B), this value was 0.005 ± 0. 0009 mSv. Mean effective radiation doses of study group A and B were significantly lower than the control group (P < 0.001). Study group A and control group images showed no significant difference in image quality except for some anatomic landmarks. Study group B images had lower image quality than control group images. Conclusions Temporal bone CT with 135 kVp and 5 mAs can be performed at very low radiation exposure while maintaining high image quality.

show abstract

“…These were evaluated independently by the same two radiologists. These anatomic landmarks were chosen based on two previous studies (4,8).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Low-dose non-contrast examination of the temporal bone using volumetric 320-row computed tomography

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Usprkos tome kvaliteta svih dobivenih prikaza objema tehnikama bila je prihvatljiva, odnosno iznad 3 boda na opisanoj ljestvici. Pri tome je doze-length product kao dozni parametar ionizirajućeg zračenja CT cijevi po sloju fantoma iznosio 59,6 mGy/cm za LDCT te 119,3 mGy/cm za standardne CT preglede 34 . Wuest i sur.…”

Section: Razvoj Kompjutorizirane Tomografije -Više Informacija Uz Manje Zračenjaunclassified

Application of low dose computed tomography protocols in pediatric radiology

Atalić

Vujaklija

Jurković

et al. 2020

Med. Flum. (Online)

View full text Add to dashboard Cite

Djeca su zbog svoje male veličine, brojnih staničnih dioba još uvijek rastućih i razvijajućih tkiva i organa, kao i dužeg očekivanog životnog vijeka, otprilike tri puta osjetljivija na iste doze ionizirajućeg zračenja od odraslih. To je posebno izraženo kod pregleda kompjutoriziranom tomografijom (engl. computerized tomography, CT) koji, iako čine samo 17 % ionizirajućih radioloških pregleda, sudjeluju s čak 49 % u ukupnom ozračivanju pacijenata. Zbog toga se pod utjecajem kampanje Image Gently početkom 2010-ih godina razmišljalo o potpunom napuštanju CT pregleda u pedijatrijskoj radiologiji te njihovoj zamjeni ultrazvučnim odnosno pregledima učinjenim magnetskom rezonancijom kao metodama izbora. Pojava Flash CT tehnike koja istovremeno skraćuje vrijeme snimanja i smanjuje doze zračenja dovela je do odustajanja od toga. Tome u prilog išle su i činjenice da su s jedne strane CT pregledi praktički nezamjenjivi u slučajevima trauma, dok su s druge strane djeca, kao uostalom i pripadnici svih drugih dobnih skupina, neprestano izložena manjoj ili većoj količini pozadinskog ionizirajućeg zračenja (Zemlja, svemir, zrakoplovi). U tome smislu danas se sve više preporučuje uporaba low dose CT (LDCT) tehnika individualno prilagođenih svakom pacijentu zbog njihove manje količine ionizirajućeg zračenja. Na tome putu nastojali smo napraviti pregled najnovijih spoznaja o spomenutoj problematici na temelju znanstvenih radova objavljenih u protekle tri godine (2016. – 2018.). Oni pokazuju da CT pregledi ne samo da nisu napušteni u pedijatrijskoj radiologiji, već naprotiv, u slučajevima brojnih indikacija LDCT pregledi čine zlatni standard.

show abstract

Deep learning reconstruction improves the image quality of low-dose temporal bone CT with otitis media and mastoiditis patients

Wang,

Zhang

et al. 2024

Heliyon

View full text Add to dashboard Cite

Imaging of the temporal bone in children using low‐dose 320‐row area detector computed tomography

Abstract: Low-dose CT of the temporal bone using 320-row CT provides images of diagnostic quality for assessment of middle and inner ear anatomy, similar to that provided by the standard-dose protocol, in spite of increased image noise.

Cited by 8 publications

References 14 publications

Low-dose non-contrast examination of the temporal bone using volumetric 320-row computed tomography

Low-dose non-contrast examination of the temporal bone using volumetric 320-row computed tomography

Application of low dose computed tomography protocols in pediatric radiology

Deep learning reconstruction improves the image quality of low-dose temporal bone CT with otitis media and mastoiditis patients

Contact Info

Product

Resources

About