Frequency of paediatric medical imaging examinations performed at a European teaching hospital over a 7-year period

Portelli, J.L.; McNulty, Jonathan P.; Bezzina, Paul; Rainford, Louise

doi:10.1007/s00330-016-4305-7

Cited by 11 publications

(5 citation statements)

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“…The absorbed radiation dose resulting from diagnostic and therapeutic NM procedures in pediatric patients is a matter of concern . Portelli et al . recently assessed the frequency of pediatric medical imaging examinations over 7 yr and found that each year, 4 of every 1,000 pediatric patients in the United States likely undergo an NM examination .…”

Section: Introductionmentioning

confidence: 99%

“…5-7 Portelli et al 8 recently assessed the frequency of pediatric medical imaging examinations over 7 yr and found that each year, 4 of every 1,000 pediatric patients in the United States likely undergo an NM examination. 8 The frequency of NM examinations is lower than that of other medical imaging modalities in this population; nevertheless, NM procedures should be performed with the lowest possible amount of administered activity necessary to ensure a useful diagnostic result. NM acquisitions are considered to be relatively high-dose diagnostic examinations for children; for example, the estimated effective 18 F-fluorodeoxyglucose dose in such examinations for children aged 1-15 yr ranges from 8.0 to 9.2 mSv, and that for 82 RbCl ranges from 8.3 to 9.9 mSv.…”

Section: Introductionmentioning

confidence: 99%

“…Portelli et al . recently assessed the frequency of pediatric medical imaging examinations over 7 yr and found that each year, 4 of every 1,000 pediatric patients in the United States likely undergo an NM examination . The frequency of NM examinations is lower than that of other medical imaging modalities in this population; nevertheless, NM procedures should be performed with the lowest possible amount of administered activity necessary to ensure a useful diagnostic result.…”

Section: Introductionmentioning

confidence: 99%

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A personalized, Monte Carlo‐based method for internal dosimetric evaluation of radiopharmaceuticals in children

et al. 2018

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Because pediatric radiopharmaceutical dosimetric estimates demonstrate large variation due to the patient's anatomical characteristics, personalized data should be considered. Using our SADR method in a larger population of phantoms and for a variety of radiopharmaceuticals could enhance the personalization of dosimetry in pediatric nuclear medicine. The proposed methodology provides the advantage of creating time-dependent organ dose rate curves.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A personalized, Monte Carlo‐based method for internal dosimetric evaluation of radiopharmaceuticals in children

et al. 2018

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“…19 TS-höfuð var algengasta rannsóknin á Landspítala (40,3%) en þó var hlutfall TS-rannsókna af höfði laegra þar en víða annars staðar. 13,15 Mikil notkun TS vegna höfuðáverka barna 20 hefur leitt til þess að gerðar hafa verið klínískar leiðbeiningar 21 meðal annars á íslensku, 22 sem án efa stuðla að viðeigandi notkun. Það er hins vegar viðurkennt vandamál í Evrópu að leiðbeiningar fyrir tilvísandi laekna vantar víða 15 og fáar leiðbeiningar um val myndrannsókna eru til á íslensku.…”

Section: Umraeðaunclassified

Geislaálag barna í tölvusneiðmyndum á Íslandi

Guðjónsdóttir

Jonsdottir

2017

LBL

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InngangurStór hluti geislaálags vegna laeknisfraeðilegrar myndgreiningar er tilkominn vegna tölvusneiðmyndarannsókna. 1 Sú staðreynd ásamt því að sífellt baetast við taekninýjungar sem geta minnkað geislaálag sjúklings gera það að verkum að mikilvaegt er að fylgjast vel með geislaálagi sjúklinga í tölvusneiðmyndarannsóknum. Þekkt er að það getur verið mikill munur á geislaálagi frá einum stað til annars. 2 Viðmið lengdargeislunar (mGy·cm) í tölvusneið-myndarannsóknum hafa víða verið sett og tilgangurinn með þeim er að stuðla að bestun rannsókna. Valin er tala naerri þriðja fjórð-ungsmarki, byggt á söfnun gagna frá viðkomandi svaeði sem eru nógu umfangsmikil til að endurspegla venjulega notkun. Þeir sem eru yfir viðmiðinu eru hvattir til að leita orsaka þess og leiða til úrbóta. 3 Öll TS-taeki skrá lengdargeislun rannsókna og þá staerð má nota til að áaetla meðalgeislaálag vegna rannsókna. 4,5 Geislaálag barna er sérstaklega mikilvaegt vegna þess að áhaetta barna vegna geislunar er meiri en fullorðinna, baeði vegna þess að þau eru viðkvaemari fyrir geislun en fullorðnir og líkurnar á að skaðar geti komið fram síðar eru meiri þar sem þau eiga að jafnaði lengra líf fyrir höndum. 6 Markmið þessarar rannsóknar var að meta geislaálag barna í tölvusneiðmyndum á Íslandi.Inngangur: Það er mikilvaegt að þekkja geislaálag sjúklinga vegna tölvu-sneiðmyndarannsókna (TS) og markmið þessarar rannsóknar var að meta geislaálag barna í TS á Íslandi. Efniviður og aðferðir: Allar TS af börnum (yngri en 18 ára) á Landspítala á tímabilinu 1. febrúar 2016 til 1. febrúar 2017 voru skoðaðar í myndageymslu og aldur barns, tegund rannsóknar og heildar lengdargeislun skráð. Einnig var heildarfjöldi TS kannaður. Hlutfall rannsókna af börnum var reiknað, tíðni mismunandi rannsókna og fyrir þrjár þaer algengustu var meðaltal lengdargeislunar reiknað og meðalgeislaálag áaetlað fyrir 5 aldurshópa. Niðurstöður: Á tímabilinu voru gerðar 662 TS af börnum, eða 3,6% af heildarfjölda. Þrjár algengustu rannsóknirnar voru af höfði (40,3%), kvið (15,6%) og brjóstholi (10,3%). Meðalgeislaálag þessara þriggja rannsókna var, í sömu röð, fyrir börn yngri en fjögurra mánaða: 5,3/4,9/3,0 mSv; fjögurra mánaða til yngri en þriggja ára: 4,2/5,5/1,9 mSv; þriggja ára til yngri en átta ára: 2,7/ 3,4/1,0 mSv; átta ára til yngri en 15 ára: 3,2/4,4/1,0 mSv og 15 ára til yngri en 18 ára: 2,1/6,5/3,3 mSv. Meðaltal lengdargeislunar var í flestum tilvikum yfir evrópskum viðmiðunarmörkum. Ályktun: Vert er að kanna hvort haegt er að minnka geislaálag barna í TS og beina aetti sjónum að staerðarleiðréttum geislaskammti í slíkri vinnu. Ástaeða er til að aetla að aukið eigið eftirlit með geislaskömmtum myndi skila sér í jafnari gaeðum og minna geislaálagi.

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“…Magnetic resonance imaging (MRI) of the lung is increasingly established in children and adolescents [1][2][3][4][5][6][7]. According to the recently published systematic review of Hirsch et al [2], lung MRI enables to replace up to 90% of paediatric chest computed tomography (CT) examinations.…”

Section: Introductionmentioning

confidence: 99%

Ultrashort echo time MRI of the lung in children and adolescents: comparison with non-enhanced computed tomography and standard post-contrast T1w MRI sequences

et al. 2021

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Objectives To compare the diagnostic value of ultrashort echo time (UTE) magnetic resonance imaging (MRI) for the lung versus the gold standard computed tomography (CT) and two T1-weighted MRI sequences in children. Methods Twenty-three patients with proven oncologic disease (14 male, 9 female; mean age 9.0 + / − 5.4 years) received 35 low-dose CT and MRI examinations of the lung. The MRI protocol (1.5-T) included the following post-contrast sequences: two-dimensional (2D) incoherent gradient echo (GRE; acquisition with breath-hold), 3D volume interpolated GRE (breath-hold), and 3D high-resolution radial UTE sequences (performed during free-breathing). Images were evaluated by considering image quality as well as distinct diagnosis of pulmonary nodules and parenchymal areal opacities with consideration of sizes and characterisations. Results The UTE technique showed significantly higher overall image quality, better sharpness, and fewer artefacts than both other sequences. On CT, 110 pulmonary nodules with a mean diameter of 4.9 + / − 2.9 mm were detected. UTE imaging resulted in a significantly higher detection rate compared to both other sequences (p < 0.01): 76.4% (84 of 110 nodules) for UTE versus 60.9% (67 of 110) for incoherent GRE and 62.7% (69 of 110) for volume interpolated GRE sequences. The detection of parenchymal areal opacities by the UTE technique was also significantly higher with a rate of 93.3% (42 of 45 opacities) versus 77.8% (35 of 45) for 2D GRE and 80.0% (36 of 45) for 3D GRE sequences (p < 0.05). Conclusion The UTE technique for lung MRI is favourable in children with generally high diagnostic performance compared to standard T1-weighted sequences as well as CT. Key Points • Due to the possible acquisition during free-breathing of the patients, the UTE MRI sequence for the lung is favourable in children. • The UTE technique reaches higher overall image quality, better sharpness, and lower artefacts, but not higher contrast compared to standard post-contrast T1-weighted sequences. • In comparison to the gold standard chest CT, the detection rate of small pulmonary nodules small nodules ≤ 4 mm and subtle parenchymal areal opacities is higher with the UTE imaging than standard T1-weighted sequences.

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Frequency of paediatric medical imaging examinations performed at a European teaching hospital over a 7-year period

Cited by 11 publications

References 41 publications

A personalized, Monte Carlo‐based method for internal dosimetric evaluation of radiopharmaceuticals in children

A personalized, Monte Carlo‐based method for internal dosimetric evaluation of radiopharmaceuticals in children

Geislaálag barna í tölvusneiðmyndum á Íslandi

Ultrashort echo time MRI of the lung in children and adolescents: comparison with non-enhanced computed tomography and standard post-contrast T1w MRI sequences

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