Search Results - "Aldrich, John E"

Dose reduction in CT while maintaining diagnostic confidence: diagnostic reference levels at routine head, chest, and abdominal CT--IAEA-coordinated research project by Tsapaki, Virginia, Aldrich, John E, Sharma, Raju, Staniszewska, Maria Anna, Krisanachinda, Anchali, Rehani, Madan, Hufton, Alan, Triantopoulou, Chariklia, Maniatis, Petros N, Papailiou, John, Prokop, Mathias

“…To measure radiation doses for computed tomography (CT) of the head, chest, and abdomen and compare them with the diagnostic reference levels, as part of the…”
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Basic physics of ultrasound imaging by Aldrich, John E

“…The appearance of ultrasound images depends critically on the physical interactions of sound with the tissues in the body. The basic principles of ultrasound…”
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Health Canada Safety Code 35: Awareness of the Impacts for Diagnostic Radiology in Canada by Bjarnason, Thorarin A., PhD, Thakur, Yogesh, PhD, Aldrich, John E., PhD, FCCPM

“…Abstract Health Canada Safety Code 35 brings Canada's diagnostic imaging radiation output and protection standards to an international level. This Safety Code…”
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COMP Report: A survey of radiation safety regulations for medical imaging x‐ray equipment in Canada by Bjarnason, Thorarin A., Rees, Robert, Kainz, Judy, Le, Lawrence H., Stewart, Errol E., Preston, Brent, Elbakri, Idris, Fife, Ingvar A. J., Lee, Ting‐Yim, Gagnon, I Martin Benoît, Arsenault, Clément, Therrien, Pierre, Kendall, Edward, Tonkopi, Elena, Cottreau, Michelle, Aldrich, John E.

“…X‐ray regulations and room design methodology vary widely across Canada. The Canadian Organization of Medical Physicists (COMP) conducted a survey in 2016/2017…”
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Assessment of Patient Doses in CR Examinations Throughout a Large Health Region by Thakur, Yogesh, Bjarnason, Thorarin A., Hammerstrom, Kevin, Marchinkow, Lorie, Koch, Tim, Aldrich, John E.

“…Optimization and standardization of radiographic procedures in a health region minimizes patient exposure while producing diagnostic images. This report…”
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Radiation doses to patients receiving computed tomography examinations in British Columbia by Aldrich, John E, Bilawich, Ana-Maria, Mayo, John R

“…To estimate the diagnostic reference levels and effective radiation dose to patients from routine computed tomography (CT) examinations in the province of…”
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Implementation of a new undergraduate radiology curriculum: experience at the University of British Columbia by Lee, Jimmy S, Aldrich, John E, Eftekhari, Arash, Nicolaou, Savvas, Müller, Nestor L

“…The purpose of this study was to review and revise the undergraduate radiology curriculum at the University of British Columbia to improve radiology education…”
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Change in patient doses from radiological examinations at the Vancouver General Hospital, 1991-2002 by Aldrich, John E, Williams, Jan

“…Much concern has been expressed over the radiation doses and potential harm from x-ray examinations. However, there have been few longitudinal studies in North…”
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Radiation dose in abdominal computed tomography: the role of patient size and the selection of tube current by Aldrich, John E, Chang, Silvia D, Bilawich, Ana-Marie, Mayo, John R

“…To develop an algorithm for selecting tube current for computed tomography (CT), based on patient weight, that produces abdominal CT images of consistent image…”
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Optimization of dose and image quality for computed radiography and digital radiography by Aldrich, John E, Duran, Emerenciana, Dunlop, Pat, Mayo, John R

“…The surface doses to patients during chest, abdomen and pelvis radiography were measured over a period of 3 years, during which time computed radiography (CR)…”
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Basic physics of ultrasound imaging: Focused applications of ultrasound in critical care medicine by ALDRICH, John E

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Assessment of PACS display systems by Aldrich, John E, Rutledge, John D

“…This work describes our experience in reviewing the performance criteria for display systems and how we have implemented a practical approach to the assessment…”
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Chronic infiltrative lung disease: comparison of diagnostic accuracies of radiography and low- and conventional-dose thin-section CT by Lee, K S, Primack, S L, Staples, C A, Mayo, J R, Aldrich, J E, Müller, N L

“…To compare the accuracy of low-dose thin-section computed tomography (CT), chest radiography, and conventional-dose thin-section CT in diagnosis of chronic…”
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A general technique for the spectroscopy of transient absorbing species by Aldrich, J E, Foldvary, P, Hunt, J W, Taylor, W B, Wolff, R K

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Collective biodosimetry as a dosimetric "gold standard": a study of three radiation accidents by Pass, B, Baranov, A E, Kleshchenko, E D, Aldrich, J E, Scallion, P L, Gale, R P

“…Quantification of the biologically relevant dose is required for the establishment of cause-and-effect between radiation detriment or burden and important…”
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Tumour blood flow: measurement and manipulation for therapeutic gain by Sagar, S M, Klassen, G A, Barclay, K D, Aldrich, J E

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Self-adhesive lead for compensator production and radiation shielding by Aldrich, J E, Andrew, J W

“…Sheet lead is a commonly used material for the manufacture of compensators and for radiation shielding. However, it suffers from such problems as nonuniformity…”
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An analysis of paramagnetic centers in irradiated dentin using electron spin resonance by PASS, B, ALDRICH, J. E, SCALLION, P. L

“…The ESR spectra produced in irradiated dentin have been studied over a range of incident radiation energies from 50 kVp to 25 MVp. The behavior of the dentin…”
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Comments on "dosimetric aspects of a rotating beam splitter used in tangential field breast treatment" by Andrew, J W, Aldrich, J E

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Radioactive gold ring dermatitis by Miller, R A, Aldrich, J E

“…A superficial squamous cell carcinoma developed in a woman who wore a radioactive gold ring for more than 30 years. Only part of the ring was radioactive…”
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