News Release on Radiation Dose Research: April -2019

Transgenerational effects of historic radiation dose in pale grass blue butterflies around Fukushima following the Fukushima Dai-ichi Nuclear Power Plant meltdown accident

Low dose radiation effects are investigated in urban center for several years however there’s uncertainty concerning initial doses received by many animal species. However, the Fukushima Dai-ichi atomic power Plant accident opens a chance to review the consequences of the initial low historic dose on directly exposed species and their relation throughout a time wherever the contaminating radionuclides are decaying. during this paper, it’s planned that historic acute exposure and its ensuing non-targeted effects (NTEs) is also partly concerned within the high mortality/abnormality rates seen across generations of pale grass blue butterflies (Zizeeria maha) around Fukushima. information from Hiyama et al. (2012) on the morphological abnormality frequencies in Z. mahacollected around Fukushima and their relation were employed in this paper. 2 dose reconstruction ways supported the mathematician plume model were accustomed confirm the external absorbed dose to the primary exposed generation from each ground shine and plume shine. One technique concerned the employment of the rate recorded at the time of assortment and solely took Cs-137 under consideration. the opposite concerned victimization unharness rates and region conditions to work out the doses and thought of Cs-137 and Cs-134. The reconstructed doses were planned against the mortality rates and abnormality frequencies across generations. The mortality rates of the relation from irradiated progenitors accrued linearly with the increasing historic radiation doses reconstructed victimization each Cs-137 and Cs-134 sources. in addition, the next level of morphological abnormalities was determined in relation than within the progenitors. The mean abnormality frequencies additionally accrued throughout generations. As these results are an indication of NTEs being concerned, it are often urged that increasing mutation levels across generations might result, in part, from NTEs elicited by the initial low dose received by the primary exposed generation. However, continual accumulation of mutations over generations in their natural contaminated habitats remains a possible contributor into the determined outcome. [1]

Radiation Dose Monitoring for Fluoroscopically Guided Interventional Procedures: Effect on Patient Radiation Exposure

Continuous dose watching and patient follow-up give timely feedback to interventionalists and promote high-dose procedure reduction over time. [2]

Radiation Dose for Pediatric CT: Comparison of Pediatric versus Adult Imaging Facilities

Academic medicine facilities use lower radiation dose than do nonacademic pediatric or adult facilities for all brain CT examinations and for the bulk of chest and abdomen-pelvis CT examinations. [3]

Quantitative Estimation of the Equivalent Radiation Dose Escalation using Radiofrequency Hyperthermia in Mouse Xenograft Models of Human Lung Cancer

Hyperthermia may be a potent radiosensitizer, and its result varies in keeping with the various forms of cancer cells. within the gift study, the radiosensitizing result of hyperthermy on carcinoma cell lines A549 and NCI-H1299 made up our minds supported the equivalent radiation dose step-up. In vitro cell experiments were conducted victimization carcinoma cell lines A549 and NCI-H1299 to see thermal sensibility. in vivo experiments were conducted victimization mouse heterotopic transplant models to see the treatment response and increase within the temperature of tumors employing a thirteen.56 MHz radiofrequency (RF) hyperthermy device. victimization the α and β values of the linear–quadratic equations of cell survival curves, numerical simulations were performed to calculate the equivalent radiation dose escalations. The stuff properties of tumors were measured, and their result on the calculated equivalent radiation dose was analyzed. hyperthermy exaggerated the equivalent radiation dose of carcinoma xenografts and a better step-up was found in NCI-H1299 cells compared thereupon ascertained in A549 cells. an understatement of the calculated equivalent radiation dose was ascertained once the stuff property of the growth was varied. This study might contribute to the effective designing of thermoradiotherapy in clinics. [4]

Monitoring and Evaluation of Radiation Dose Level at Institute of Nuclear Medicine and Allied Sciences, Khulna

Every sort of radiation is harmful for the activity employees, patients and conjointly for the surroundings. Among of those, radiation is additional mischievous. thus it’s essential to observe the radiation level to confirm the health and safety of the activity employees, general public and conjointly to guard the surroundings from the harmful impact of radiation. In medical sector, radiation is employed for identification and treating varied diseases. For this purpose, a radiation survey has been performed throughout a amount of eight months with a read to establishing the close radiation level within the space of Institute of medicine & Allied sciences (INMAS) at Khulna Medical school Hospital, Khulna. Survey meter is employed for observance the radiation level at totally different location in INMAS, Khulna. we’ve got obtained the result zero.8 mSv in several locations and eight mSv in one location not crossing twenty mSv that is inside the suitable limit. it’s ended that there’s no (or less) risk of radiation hazard within the INMAS, Khulna. [5]

 

Reference

[1] Hancock, S., Vo, N.T., Omar-Nazir, L., Batlle, J.V.I., Otaki, J.M., Hiyama, A., Byun, S.H., Seymour, C.B. and Mothersill, C., 2019. Transgenerational effects of historic radiation dose in pale grass blue butterflies around Fukushima following the Fukushima Dai-ichi Nuclear Power Plant meltdown accident. Environmental research168, pp.230-240. (Web Link)

[2] Liu, B., Hirsch, J.A., Li, X., Sheridan, R.M., Rehani, M.M., Zheng, H. and Rabinov, J.D., 2019. Radiation dose monitoring for fluoroscopically guided interventional procedures: effect on patient radiation exposure. Radiology, p.180799. (Web Link)

[3] Strauss, K.J., Somasundaram, E., Sengupta, D., Marin, J.R. and Brady, S.L., 2019. Radiation dose for pediatric CT: comparison of pediatric versus adult imaging facilities. Radiology, p.181753. (Web Link)

[4] Quantitative Estimation of the Equivalent Radiation Dose Escalation using Radiofrequency Hyperthermia in Mouse Xenograft Models of Human Lung Cancer

Bibin Prasad, Subin Kim, Woong Cho, Jung Kyung Kim, Young A. Kim, Suzy Kim & Hong Gyun Wu

Scientific Reportsvolume 9, Article number: 3942 (2019) (Web Link)

[5] Monitoring and Evaluation of Radiation Dose Level at Institute of Nuclear Medicine and Allied Sciences, Khulna

M. R. Islam

Physics Discipline, Khulna University, Khulna-9208, Bangladesh and Institute of Nuclear Medicine and Allied Sciences, Khulna-9000, Bangladesh.

M. S. Parvez

Physics Discipline, Khulna University, Khulna-9208, Bangladesh and Institute of Nuclear Medicine and Allied Sciences, Khulna-9000, Bangladesh.

M. R. Hasan

Physics Discipline, Khulna University, Khulna-9208, Bangladesh and Institute of Nuclear Medicine and Allied Sciences, Khulna-9000, Bangladesh.

H. R. Khan

Physics Discipline, Khulna University, Khulna-9208, Bangladesh.

A. K. Paul

Institute of Nuclear Medicine and Allied Sciences, Khulna-9000, Bangladesh. (Web Link)

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