The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Masayuki Zuguchi - One of the best experts on this subject based on the ideXlab platform.
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radiation dose to the pediatric Cardiac Catheterization and intervention patient
American Journal of Roentgenology, 2010Co-Authors: Koichi Chida, Tadayuki Ohno, Shuhei Kakizaki, Mika Takegawa, Hiroko Yuuki, Mitsuru Nakada, Shoki Takahashi, Masayuki ZuguchiAbstract:OBJECTIVE. The radiation dose from Cardiac Catheterization is particularly relevant when treating children because of their greater radiosensitivity compared with adults. Moreover, Cardiac Catheterization is being used increasingly for interventional radiology procedures, possibly resulting in higher patient radiation doses. This article reports the radiation doses and related factors, such as fluoroscopy time, for children who underwent Cardiac Catheterization and children who underwent other interventional radiology procedures.MATERIALS AND METHODS. We evaluated 239 consecutive patients who underwent Cardiac Catheterization (n = 205) or another interventional radiology procedure (n = 34) for which the dose–area product (DAP) was measured. The number of cine runs and fluoroscopic time for each procedure and the body mass index and body weight of each patient were recorded. We also used the double product combined with body weight, which is the weight– fluoroscopic time product.RESULTS. The average DAP ± ...
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Radiation dose to the pediatric Cardiac Catheterization and intervention patient.
AJR. American journal of roentgenology, 2010Co-Authors: Koichi Chida, Tadayuki Ohno, Shuhei Kakizaki, Mika Takegawa, Hiroko Yuuki, Mitsuru Nakada, Shoki Takahashi, Masayuki ZuguchiAbstract:The radiation dose from Cardiac Catheterization is particularly relevant when treating children because of their greater radiosensitivity compared with adults. Moreover, Cardiac Catheterization is being used increasingly for interventional radiology procedures, possibly resulting in higher patient radiation doses. This article reports the radiation doses and related factors, such as fluoroscopy time, for children who underwent Cardiac Catheterization and children who underwent other interventional radiology procedures. We evaluated 239 consecutive patients who underwent Cardiac Catheterization (n = 205) or another interventional radiology procedure (n = 34) for which the dose-area product (DAP) was measured. The number of cine runs and fluoroscopic time for each procedure and the body mass index and body weight of each patient were recorded. We also used the double product combined with body weight, which is the weight- fluoroscopic time product. The average DAP ± SD of Cardiac Catheterization and of an interventional radiology procedure was 1,702.6 ± 2,110.1 cGy × cm² and 2,242.2 ± 2,509.4 cGy × cm², respectively. The average fluoroscopic time ± SD of Cardiac Catheterization and of an interventional radiology procedure was 24.1 ± 16.8 minutes and 37.2 ± 20.0 minutes. For children who underwent Cardiac Catheterization and those who underwent an interventional radiology procedure, a strong correlation was seen between the DAP and weight-fluoroscopic time product (Cardiac Catheterization, r = 0.906; interventional radiology procedure, r = 0.885) and a good correlation was detected between the DAP and weight (r = 0.819 and 0.895, respectively). There was a good correlation between the DAP and weight and between DAP and weight-fluoroscopic time product for children who underwent Cardiac Catheterization or an interventional radiology procedure. Therefore, body weight is important for determining radiation dose to children undergoing Cardiac Catheterization or an interventional radiology procedure. The normalized DAP (i.e., DAP divided by body weight), fluoroscopy time, and number of cine runs were greater in children who underwent an interventional radiology procedure than in those who underwent Cardiac Catheterization. Therefore, the radiation dose to children from interventional radiology procedures is a more critical issue.
Koichi Chida - One of the best experts on this subject based on the ideXlab platform.
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radiation dose to the pediatric Cardiac Catheterization and intervention patient
American Journal of Roentgenology, 2010Co-Authors: Koichi Chida, Tadayuki Ohno, Shuhei Kakizaki, Mika Takegawa, Hiroko Yuuki, Mitsuru Nakada, Shoki Takahashi, Masayuki ZuguchiAbstract:OBJECTIVE. The radiation dose from Cardiac Catheterization is particularly relevant when treating children because of their greater radiosensitivity compared with adults. Moreover, Cardiac Catheterization is being used increasingly for interventional radiology procedures, possibly resulting in higher patient radiation doses. This article reports the radiation doses and related factors, such as fluoroscopy time, for children who underwent Cardiac Catheterization and children who underwent other interventional radiology procedures.MATERIALS AND METHODS. We evaluated 239 consecutive patients who underwent Cardiac Catheterization (n = 205) or another interventional radiology procedure (n = 34) for which the dose–area product (DAP) was measured. The number of cine runs and fluoroscopic time for each procedure and the body mass index and body weight of each patient were recorded. We also used the double product combined with body weight, which is the weight– fluoroscopic time product.RESULTS. The average DAP ± ...
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Radiation dose to the pediatric Cardiac Catheterization and intervention patient.
AJR. American journal of roentgenology, 2010Co-Authors: Koichi Chida, Tadayuki Ohno, Shuhei Kakizaki, Mika Takegawa, Hiroko Yuuki, Mitsuru Nakada, Shoki Takahashi, Masayuki ZuguchiAbstract:The radiation dose from Cardiac Catheterization is particularly relevant when treating children because of their greater radiosensitivity compared with adults. Moreover, Cardiac Catheterization is being used increasingly for interventional radiology procedures, possibly resulting in higher patient radiation doses. This article reports the radiation doses and related factors, such as fluoroscopy time, for children who underwent Cardiac Catheterization and children who underwent other interventional radiology procedures. We evaluated 239 consecutive patients who underwent Cardiac Catheterization (n = 205) or another interventional radiology procedure (n = 34) for which the dose-area product (DAP) was measured. The number of cine runs and fluoroscopic time for each procedure and the body mass index and body weight of each patient were recorded. We also used the double product combined with body weight, which is the weight- fluoroscopic time product. The average DAP ± SD of Cardiac Catheterization and of an interventional radiology procedure was 1,702.6 ± 2,110.1 cGy × cm² and 2,242.2 ± 2,509.4 cGy × cm², respectively. The average fluoroscopic time ± SD of Cardiac Catheterization and of an interventional radiology procedure was 24.1 ± 16.8 minutes and 37.2 ± 20.0 minutes. For children who underwent Cardiac Catheterization and those who underwent an interventional radiology procedure, a strong correlation was seen between the DAP and weight-fluoroscopic time product (Cardiac Catheterization, r = 0.906; interventional radiology procedure, r = 0.885) and a good correlation was detected between the DAP and weight (r = 0.819 and 0.895, respectively). There was a good correlation between the DAP and weight and between DAP and weight-fluoroscopic time product for children who underwent Cardiac Catheterization or an interventional radiology procedure. Therefore, body weight is important for determining radiation dose to children undergoing Cardiac Catheterization or an interventional radiology procedure. The normalized DAP (i.e., DAP divided by body weight), fluoroscopy time, and number of cine runs were greater in children who underwent an interventional radiology procedure than in those who underwent Cardiac Catheterization. Therefore, the radiation dose to children from interventional radiology procedures is a more critical issue.
Peter J Conlon - One of the best experts on this subject based on the ideXlab platform.
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progression of renal artery stenosis in patients undergoing Cardiac Catheterization
American Heart Journal, 1998Co-Authors: James J Crowley, Harry R Phillips, Steven J Schwab, Renato M Santos, Robert H Peter, Joseph A Puma, Richard S Stack, Peter J ConlonAbstract:Abstract Background Renal artery stenosis is potentially correctable by either revascularization surgery or percutaneous methods. However, appropriate use of these techniques has been hampered by a lack of data on the natural history of this disease. This study assesses the prevalence, risk factors for progression, and effect on renal function of angiographically demonstrated renal artery disease in patients undergoing Cardiac Catheterization. Methods The severity of renal artery stenosis was quantified in all patients who underwent abdominal aortography as part of a diagnostic Cardiac Catheterization study at Duke University Medical Center between January 1989 and February 1996. Results There were 14,152 patients in the study (mean age 61 ± 12 years, 62% male). Normal renal arteries were identified in 12,543 (88.7%) patients, insignificant disease ( P = .01). Conclusions Renal artery disease is frequently progressive in patients who undergo Cardiac Catheterization for investigation of coronary artery disease. Significant stenotic disease may develop over a short period despite evidence of normal renal arteries at prior Catheterization. (Am Heart J 1998;136:913-8.)
H. Carty - One of the best experts on this subject based on the ideXlab platform.
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Radiation exposure to children during Cardiac Catheterization
The British journal of radiology, 1997Co-Authors: A Boothroyd, E Mcdonald, B M Moores, V Sluming, H. CartyAbstract:The purpose of this study was to assess the suitability of different radiation dosimetry methods and record radiation exposures during paediatric Catheterization. Three methods of dosimetry were employed: thermoluminescent dosimetry (TLD), dose-area product and calculation of entrance surface dose from calibrated exposure factors. Examinations included bi-plane fluoroscopy, and cineangiography for diagnosis and treatment of congenital heart disease. The most suitable method of radiation dosimetry for Cardiac Catheterization is the use of calculated entrance dose or a dose-area product meter. Children were exposed to high levels of radiation during Cardiac Catheterization but there was a wide variation in radiation dosage. Careful consideration should be given to the suitability of radiation dosimetry for Cardiac Catheterization.
Tadayuki Ohno - One of the best experts on this subject based on the ideXlab platform.
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radiation dose to the pediatric Cardiac Catheterization and intervention patient
American Journal of Roentgenology, 2010Co-Authors: Koichi Chida, Tadayuki Ohno, Shuhei Kakizaki, Mika Takegawa, Hiroko Yuuki, Mitsuru Nakada, Shoki Takahashi, Masayuki ZuguchiAbstract:OBJECTIVE. The radiation dose from Cardiac Catheterization is particularly relevant when treating children because of their greater radiosensitivity compared with adults. Moreover, Cardiac Catheterization is being used increasingly for interventional radiology procedures, possibly resulting in higher patient radiation doses. This article reports the radiation doses and related factors, such as fluoroscopy time, for children who underwent Cardiac Catheterization and children who underwent other interventional radiology procedures.MATERIALS AND METHODS. We evaluated 239 consecutive patients who underwent Cardiac Catheterization (n = 205) or another interventional radiology procedure (n = 34) for which the dose–area product (DAP) was measured. The number of cine runs and fluoroscopic time for each procedure and the body mass index and body weight of each patient were recorded. We also used the double product combined with body weight, which is the weight– fluoroscopic time product.RESULTS. The average DAP ± ...
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Radiation dose to the pediatric Cardiac Catheterization and intervention patient.
AJR. American journal of roentgenology, 2010Co-Authors: Koichi Chida, Tadayuki Ohno, Shuhei Kakizaki, Mika Takegawa, Hiroko Yuuki, Mitsuru Nakada, Shoki Takahashi, Masayuki ZuguchiAbstract:The radiation dose from Cardiac Catheterization is particularly relevant when treating children because of their greater radiosensitivity compared with adults. Moreover, Cardiac Catheterization is being used increasingly for interventional radiology procedures, possibly resulting in higher patient radiation doses. This article reports the radiation doses and related factors, such as fluoroscopy time, for children who underwent Cardiac Catheterization and children who underwent other interventional radiology procedures. We evaluated 239 consecutive patients who underwent Cardiac Catheterization (n = 205) or another interventional radiology procedure (n = 34) for which the dose-area product (DAP) was measured. The number of cine runs and fluoroscopic time for each procedure and the body mass index and body weight of each patient were recorded. We also used the double product combined with body weight, which is the weight- fluoroscopic time product. The average DAP ± SD of Cardiac Catheterization and of an interventional radiology procedure was 1,702.6 ± 2,110.1 cGy × cm² and 2,242.2 ± 2,509.4 cGy × cm², respectively. The average fluoroscopic time ± SD of Cardiac Catheterization and of an interventional radiology procedure was 24.1 ± 16.8 minutes and 37.2 ± 20.0 minutes. For children who underwent Cardiac Catheterization and those who underwent an interventional radiology procedure, a strong correlation was seen between the DAP and weight-fluoroscopic time product (Cardiac Catheterization, r = 0.906; interventional radiology procedure, r = 0.885) and a good correlation was detected between the DAP and weight (r = 0.819 and 0.895, respectively). There was a good correlation between the DAP and weight and between DAP and weight-fluoroscopic time product for children who underwent Cardiac Catheterization or an interventional radiology procedure. Therefore, body weight is important for determining radiation dose to children undergoing Cardiac Catheterization or an interventional radiology procedure. The normalized DAP (i.e., DAP divided by body weight), fluoroscopy time, and number of cine runs were greater in children who underwent an interventional radiology procedure than in those who underwent Cardiac Catheterization. Therefore, the radiation dose to children from interventional radiology procedures is a more critical issue.