Radiologic and Nuclear Medicine Studies in the United States and Worldwide: Frequency, Radiation Dose, and Comparison with Other Radiation Sources—1950–2007

Mettler, Fred A.; Bhargavan, Mythreyi; Faulkner, K.; Gilley, Deidre; Gray, Joel E.; Ibbott, Geoffrey S.; Lipoti, Jill; Mahesh, Mahadevappa; McCrohan, J.L.; Stabin, Michael G.; Thomadsen, Bruce R.; Yoshizumi, Terry T.

doi:10.1148/radiol.2532082010

Cited by 748 publications

(442 citation statements)

References 13 publications

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“…Due to the increase in life expectancy of the general population, spreading and increasing adherence to screening programs, and the effectiveness of medical and surgical therapies that increased the prevalence of oncological diseases, there has been an exponential increase in the number of radiological examinations performed for screening, diagnosis, and follow-up of diseases [1].…”

Section: Introductionmentioning

confidence: 99%

Relationship between anxiety level and radiological investigation. Comparison among different diagnostic imaging exams in a prospective single-center study

Luca

Muscarneri

et al. 2016

Radiol med

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submitted to MR, 18 % to breast imaging, 10 % to X-ray, 22 % Computer Tomography and 19 % to ultrasound, as previously described. 41 % of patients were submitted to the examination because of an oncologic disease, while 59 % because of non-oncological disease. Therefore, it was found that high levels of anxiety were present in most (about 91 %) of the patients and the scores varied according to the imaging examination and to the examination's reason: anxiety level was higher in non-oncological patients (54 %) and in patients waiting to undergo to MRI exams (29 %). Conclusion Our data suggest that the diagnostic exams are stressful events for the patient, also in non-oncological patients. So, it is important to adequate the radiological staff to receive the patient, to inform him and perform AbstractObjective Every patient could feel anxious when he waits in a radiological department to undergo diagnostic exams. The aim of our study is to evaluate the impact of the radiological exams on patient anxiety. Materials and methods

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Section: Introductionmentioning

confidence: 99%

Relationship between anxiety level and radiological investigation. Comparison among different diagnostic imaging exams in a prospective single-center study

Luca

Muscarneri

et al. 2016

Radiol med

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“…Medical exposure to ionizing radiation from X-rays and in nuclear medicine is known to be the largest man made source of radiation exposure (Mettler et al, 2009). Such exposure is of considerable concern for interventional cardiologists due to increasing workloads and intricacy of procedures over the last decade (Cousins et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Autoimmune Thyroiditis Among Ionizing Radiation Exposed Workers in Cardiac Catheterization Units.

Sa¹,

Mansour²,

Mm³

et al. 2017

Egypt. J. Occup. Med.

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Introduction: It is well known that ionizing radiation (IR) exposure increases the risk of thyroid cancer; however less is known about its role in development of autoimmune thyroiditis. Aim of work: to investigate the thyroid gland functions, level of anti TPO among interventional cardiology team members searching for an association between the level of their occupational exposure to ionizing radiation and the thyroid gland integrity. Materials and methods: This work was carried out in Cardiac Catheterization Unit in National Heart Institute Center. The study comprised two groups, an exposed group of 47 cardiac catheterization workers (19 physicians, 15 nurses and 13 technicians) and a control group of 47 workers matched with the exposed group as regards age and sex. The studied groups were subjected to a detailed questionnaire, full clinical examinations. laboratory investigations in the form of serum thyroid stimulating hormone (TSH), Triiodothyronine (T3), Thyroxine (T4) and antithyroxiperoxidase antibodies (anti-TPO). Radiation exposure was monitored by digital dosimeter. Results: Dosimeter readings were higher among physicians followed by nurses and technicians. Statistically significant higher level of serum TSH, anti-TPO along with statistically significant lower levels of T3, were found among the exposed compared to control groups (P<0.05). Significant positive correlation was detected between the level of anti-TPO and TSH (r= 0.876 P<0.001). Moreover, a significant negative correlation was found between anti-TPO and each of T3 (r= -0.814 P<0.001) and T4 (r= -0.324 P<0.05). ANOVA and Post Hoc tests showed significantly higher level of anti-TPO with significantly lower levels of T3 among the physicians compared to control group. Conclusion: Autoimmune thyroiditis may be considered as one of the adverse health hazards of occupational exposure to ionizing radiation in cardiac catheterization units. Recommendations: We recommend the regular measurement of thyroid hormone especially TSH and anti-TPO to detect early affection of thyroid gland among radiation exposed workers.

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“…A recent study performed by the National Lung Screening Trial (NLST) using computed tomography (CT) showed a 20 % reduction in death due to lung cancer mortality [4]. However, CT is controversial due to the higher radiation doses required, higher cost, and the large number of indeterminate nodules [5][6][7][8]. The speed of acquisition available with flat panel imaging technology has made biplane stereoscopic systems feasible.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Evaluation of Biplane Correlation (BCI) Stereographic Imaging for Lung Nodule Detection

et al. 2012

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A biplane correlation (BCI) imaging system obtains images that can be viewed in stereo, thereby minimizing overlapping structures. This study investigated whether using stereoscopic visualization provides superior lung nodule detection compared to standard postero-anterior (PA) image display. Images were acquired at two oblique views of ±3°as well as at a standard PA position from 60 patients. Images were processed using optimal parameters and displayed on a stereoscopic display. The PA image was viewed in the standard format, while the oblique views were paired to provide a stereoscopic view of the subject. A preliminary observer study was performed with four radiologists who viewed and scored the PA image then viewed and scored the BCI stereoscopic image. The BCI stereoscopic viewing of lung nodules resulted in 71 % sensitivity and 0.31 positive predictive value (PPV) index compared to PA results of 86 % sensitivity and 0.26 PPV index. The sensitivity for lung nodule detection with the BCI stereoscopic system was reduced by 15 %; however, the total number of false positives reported was reduced by 35 % resulting in an improved PPV index of 20 %. The preliminary results indicate observer dependency in terms of relative advantage of either system in the detection of lung nodules, but overall equivalency of the two methods with promising potential for BCI as an adjunct diagnostic technique.

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Radiologic and Nuclear Medicine Studies in the United States and Worldwide: Frequency, Radiation Dose, and Comparison with Other Radiation Sources—1950–2007

Cited by 748 publications

References 13 publications

Relationship between anxiety level and radiological investigation. Comparison among different diagnostic imaging exams in a prospective single-center study

Relationship between anxiety level and radiological investigation. Comparison among different diagnostic imaging exams in a prospective single-center study

Autoimmune Thyroiditis Among Ionizing Radiation Exposed Workers in Cardiac Catheterization Units.

Preliminary Evaluation of Biplane Correlation (BCI) Stereographic Imaging for Lung Nodule Detection

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