scholarly journals Estimation of Surface Radiation Dosage to Thyroid Gland and Lower Abdomen While Using Intraoral Periapical Radiography: A Phantom Study

Cureus ◽  
2021 ◽  
Author(s):  
Krishnamachari Janani ◽  
T Malarkodi ◽  
Sathasivasubramanian Sankarapandian
Keyword(s):  
Thyroid Gland ◽  
Radiation Dosage ◽  
Phantom Study ◽  
Surface Radiation ◽  
Lower Abdomen ◽  
Periapical Radiography

scholarly journals The Comparison of Entrance Surface Radiation Dose to the Thyroid Gland Region in Different Dental Panoramic Radiography

2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Siyambalagoda Gamage Manuja Dilan Yasiru ◽  
Ibashini Nuwan Kumari Herath ◽  
Bimali Sanjeevani Weerakoon
Keyword(s):  
Thyroid Gland ◽  
Radiation Dose ◽  
Panoramic Radiography ◽  
Surface Radiation

HREM Study of electron-induced surface radiation damage in ReO3

1991 ◽  
Vol 49 ◽  
pp. 636-637
Author(s):  
R. Ai ◽  
H.-J. Fan ◽  
L. D. Marks
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Metal Oxides ◽  
Electron Irradiation ◽  
Transition Metal Oxides ◽  
Carbon Film ◽  
Transition Metal Ions ◽  
Surface Radiation ◽  
Valence Transition ◽  
Electron Microscopes

It has been known for a long time that electron irradiation induces damage in maximal valence transition metal oxides such as TiO2, V2O5, and WO3, of which transition metal ions have an empty d-shell. This type of damage is excited by electronic transition and can be explained by the Knoteck-Feibelman mechanism (K-F mechanism). Although the K-F mechanism predicts that no damage should occur in transition metal oxides of which the transition metal ions have a partially filled d-shell, namely submaximal valence transition metal oxides, our recent study on ReO3 shows that submaximal valence transition metal oxides undergo damage during electron irradiation.ReO3 has a nearly cubic structure and contains a single unit in its cell: a = 3.73 Å, and α = 89°34'. TEM specimens were prepared by depositing dry powders onto a holey carbon film supported on a copper grid. Specimens were examined in Hitachi H-9000 and UHV H-9000 electron microscopes both operated at 300 keV accelerating voltage. The electron beam flux was maintained at about 10 A/cm2 during the observation.

Echinococcosis of the thyroid gland. Report of two cases

JAMA ◽  
1967 ◽  
Vol 200 (2) ◽  
pp. 178-179 ◽  
Author(s):  
G. D. Skalkeas
Keyword(s):  
Thyroid Gland

Autoimmunity and malignancy of the thyroid gland – Are they immunologically linked?

2015 ◽  
Vol 122 (03) ◽  
Author(s):  
M Ehlers ◽  
S Allelein ◽  
A Kuebart ◽  
T Dringenberg ◽  
M Haase ◽  
...  
Keyword(s):  
Thyroid Gland

Quality control of elastography quantification: a phantom study

2015 ◽  
Vol 53 (08) ◽  
Author(s):  
R Kubale ◽  
T Fuhrmann ◽  
A Arslanow ◽  
F Frenzel ◽  
P Minko ◽  
...  
Keyword(s):  
Quality Control ◽  
Phantom Study

The Effect of Carbimazole Following Radioiodine Therapy on Radiation Dose to the Thyroid

1981 ◽  
Vol 20 (02) ◽  
pp. 72-75 ◽  
Author(s):  
R. Kocak ◽  
R.G. Herbert ◽  
C.R. Squire ◽  
T.M.D. Gimlette
Keyword(s):  
Thyroid Gland ◽  
Radiation Dose ◽  
Half Life ◽  
Radioiodine Therapy

Radioiodine in the thyroid gland after a therapy dose of 131I was measured serially in 7 patients without Carbimazole, and in 11 patients starting Carbimazole 60 mg daily fourteen days after the therapy dose. Effective half-life for radioiodine in the gland initially 5.53±1.08 days fell to 4.26±1.12 days (p < 0.01) during Carbimazole, and returned to 5.83±1.21 days (NS) after stopping the drug. The radiation dose to the thyroid from a given therapy dose of 131I followed by Carbimazole was calculated to be 97% of that without Carbimazole when the drug was started after 14 days, and 90% and 75% when the drug was started after 7 days and 1 day respectively.

Emission time optimisation for Ga-68-PSMA with a digital PET/CT – a phantom study

2020 ◽  
Author(s):  
PF Costa ◽  
F Süßelbeck ◽  
A Bramer ◽  
M Conti ◽  
M Weber ◽  
...  
Keyword(s):  
Phantom Study ◽  
Pet Ct ◽  
Emission Time ◽  
Digital Pet
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