Abnormality

Jul 5, 2016 by in INFECTIOUS DISEASE Comments Off on Abnormality

Abnormality … the medical meaning of “normal” has been lost in the shuffle of statistics. —Alvan Feinstein 1977 KEY WORDS Nominal data Dichotomous data Ordinal data Interval data Continuous data…

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Frequency

Jul 5, 2016 by in INFECTIOUS DISEASE Comments Off on Frequency

Frequency Here, it is necessary to count. —P.C.A. Louis† 1787-1872* KEY WORDS Numerator Denominator Prevalence Point prevalence Period prevalence Incidence Duration of disease Case fatality rate Survival rate Complication rate…

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Introduction

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Introduction We should study “the benefits of medical interventions in relation to their hazards and costs.” —Kerr L. White 1992 KEY WORDS Clinical epidemiology Clinical sciences Population sciences Epidemiology Evidence-based…

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Principles of Radiologic Physics and Dosimetry

Jul 2, 2016 by in ONCOLOGY Comments Off on Principles of Radiologic Physics and Dosimetry

Principles of Radiologic Physics and Dosimetry James A. Purdy A solid foundation in the principles of radiologic physics, dosimetry, and treatment planning is essential for the practice of modern-day radiation…

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Physics and Biology of Brachytherapy

Jul 2, 2016 by in ONCOLOGY Comments Off on Physics and Biology of Brachytherapy

Physics and Biology of Brachytherapy Jeffrey F. Williamson, X. Allen Li, and David J. Brenner Brachytherapy (BT) (brachy is Greek for “short distance”) consists of placing sealed radioactive sources very…

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Nasopharynx

Jul 2, 2016 by in ONCOLOGY Comments Off on Nasopharynx

Nasopharynx Benjamin H. Lok, Jeremy Setton, Felix Ho, Nadeem Riaz, Shyam S. Rao, and Nancy Y. Lee ANATOMY The nasopharynx is a cuboidal chamber that is slightly broader in the…

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The Physics and Dosimetry of High–Dose-Rate Brachytherapy

Jul 2, 2016 by in ONCOLOGY Comments Off on The Physics and Dosimetry of High–Dose-Rate Brachytherapy

The Physics and Dosimetry of High–Dose-Rate Brachytherapy Bruce Thomadsen and Rupak K. Das NATURE OF HIGH–DOSE-RATE BRACHYTHERAPY Conventional brachytherapy was developed very soon after the discovery of radium. The limited…

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Esophageal Cancer

Jul 2, 2016 by in ONCOLOGY Comments Off on Esophageal Cancer

Esophageal Cancer Brian G. Czito, Albert S. DeNittis, Manisha Palta, and Christopher G. Willett Less than 15% of patients diagnosed with esophageal cancer are cured, with approximately half of patients…

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