Radiation Dose to Newborns in Neonatal Intensive Care Units

Toossi, Mohammad Taghi Bahreyni; Malekzadeh, Malakeh

doi:10.5812/iranjradiol.8065

Cited by 44 publications

(26 citation statements)

References 10 publications

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“…The results of this study showed that the calculated ESD of different organs was greater than those reported in other studies in Iran including Kashan and Mashhad (3,18). Nevertheless, these values were lesser than those reported in other parts of Iran, Chaharmahal and Bakhtiari (19), Shiraz (14), (20) and Esfahan (7).…”

Section: Discussioncontrasting

confidence: 54%

Cumulative Radiation Dose and Cancer Risk Estimation in Common Diagnostic Radiology Procedures

et al. 2018

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Background: Diagnostic radiology by the use of ionizing radiation plays a main contribution in the collective dose of human population. Knowing the radiation dose received by patients during a radiological examination is essential to prevent the excess health risk of exposure. Objectives: The aim of this study was to estimate the collective dose and calculate the cancer risk probability due to common radiological procedures in four radiology imaging centers of Iran. Patients and Methods: Four hundred seventy patients who underwent different radiological examinations including the skull, chest, abdomen, pelvis, lumbar, cervical and thoracic regions in four radiology centers of Hamadan, Iran were studied. The patients' entrance surface dose (ESD) was measured, and eventually, the effective dose (ED) was calculated. These parameters were compared with the reported values and international standard levels. Finally, the risk of cancer was determined by two different methods proposed in international commission on radiological protection (ICRP) 103.

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Section: Discussioncontrasting

confidence: 54%

Cumulative Radiation Dose and Cancer Risk Estimation in Common Diagnostic Radiology Procedures

et al. 2018

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“…Our findings showed that the rate of uptake in the G1 is a little less than the Ch1 and the T1. In their study in 2012, Toossi et al reported an ESD rate of 85.191 µG in the infant’s chest [13]. …”

Section: Discussionmentioning

confidence: 99%

Evaluation of Radiation Dose Received by Premature Neonates Admitted to Neonatal Intensive Care Unit

et al. 2017

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BackgroundThis study aimed to evaluate the radiation dose received by premature neonates using diagnostic radiographies.MethodsThis cross-sectional study was conducted on 116 premature neonates with gestational age from 25 to 37 weeks; with the diagnosis of neonatal respiratory distress syndrome (NRDS) and tachypnea, they were admitted to a neonatal intensive care unit (NICU) at Ahvaz Imam Khomeini Hospital in 2015. For assessing the dose received, the model GR-200 thermoluminescent dosimeter (TLD) was used. For each premature neonate under radiation, three TLDs separately (one for each) were placed on surfaces of Ch1, T1, and G1 (chest, thyroid, and gonad of first newborn, respectively). Moreover, for the adjacent neonate at a distance of 60 - 100 cm, two TLDs were laid in the surfaces of T2 and G2 (thyroid and gonad of second newborn, respectively). The dose received by TLDs for any baby and the adjacent neonate under the entrance surface dose (ESD) was estimated.ResultsThe mean of neonates’ weight under study was 1,950.78 ± 484.9 g. During the hospitalization period, minimum one and maximum three radiographies were done for any premature neonate. The doses received in the premature neonates to Ch1, T1 and G1 were 0.08 ± 0.01, 0.06 ± 0.01, and 0.05 ± 0.01 mSv, respectively and for adjacent infants for T2 and G2 were 0.003 ± 0.001 and 0.002 ± 0.0009 mSv, respectively.ConclusionsIn the study, radiation dose received by organs at risk of premature neonates was lower than the international criteria and standards, therefore, also due to the lack of radiation damage threshold, to limit collimator, and the use of the proper filtration, kilovoltage and time during radiography of premature neonates are recommended.

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“…As the sensitivity of cells towards ionising radiation depends on the rate of mitosis of cells, those cells with a high rate of mitosis are more sensitive towards damage caused by ionising radiation because the mitosis growth rate of cells in children is up to 10 times higher than in adults, so their cells are also more sensitive to ionising radiation. The highest sensitivity towards ionising radiation is found in newborns and decreases with age 10 . Another feature in children is that the endogenous mechanisms to control damage caused by radiation is not fully mature and therefore less effective compared to adults.…”

Section: Discussionmentioning

confidence: 99%

Indications of cone beam CT in head and neck imaging in children

Walliczek-Dworschak¹,

Diogo²,

Strack³

et al. 2017

Acta Otorhinolaryngol Ital

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La TC cone beam (CBCT) rappresenta un interessante strumento diagnostico specialmente nei bambini per lo studio del basicranio anteriore e laterale, in particolar modo per la bassa esposizione a radiazioni tipica della metodica. Lo scopo del presente studio è stato quello di individuare le potenziali indicazioni per la CBCT nei bambini e il confronto rispetto alle indicazioni nelladulto. Sono stati analizzati un totale di 554 pazienti (range 0-18 anni, media 10.36) sottoposti a CBCT da Gennaio 2004 a Giugno 2013 presso il Dipartimento di ORL della Clinica Universitaria di Marburg, allo scopo di effettuare un analisi retrospettiva dei parametri utilizzati e delle indicazioni allesame. I dati provenienti dai bambini sono stati inoltre confrontati con un set di dati di 1730 adulti sottoposti a diagnosi mediante CBCT presso lo stesso dipartimento e già precedentemente pubblicati. Le differenti indicazioni più frequentemente rilevate allesecuzione dellesame negli adulti, rispetto ai bambini hanno riguardato il basicranio anteriore, e in particolare: trauma del volto (60.4%) vs. rinosinusite cronica (54.8%), ostruzione respiratoria nasale (13.9% vs. 13.0%) e rinosinusite cronica (12%) vs. trauma del volto (10.8%). Per quanto riguarda il basicranio laterale le indicazioni principali sono state il colesteatoma (20.3%) vs. controllo del posizionamento dellimpianto cocleare (31.2%), otorrea cronica (17.5%) vs. colesteatoma (20.9%) e il controllo del posizionamento dellimpianto cocleare (11.8%) vs. otite media cronica mesotimpanica (6.8%). La CBCT è una metodica efficace per lo studio delle strutture ossee nelladulto e nei bambini. I parametri di impostazione dipendono principalmente dalla regione oggetto di studio. Uno dei principali obiettivi è ridurre lesposizione alle radiazioni sia nei bambini che negli adulti.

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Radiation Dose to Newborns in Neonatal Intensive Care Units

Cited by 44 publications

References 10 publications

Cumulative Radiation Dose and Cancer Risk Estimation in Common Diagnostic Radiology Procedures

Cumulative Radiation Dose and Cancer Risk Estimation in Common Diagnostic Radiology Procedures

Evaluation of Radiation Dose Received by Premature Neonates Admitted to Neonatal Intensive Care Unit

Indications of cone beam CT in head and neck imaging in children

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