Potential for contamination of transesophageal echocardiographic scopes by radionuclides from patients undergoing nuclear imaging studies
| Autor: | Charles R. Prince, Marcus F. Stoddard, Daniel H. Dunker, Terry E. Williams |
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| Rok vydání: | 1995 |
| Předmět: |
Male
Radioisotopes medicine.medical_specialty Radionuclide Nuclear imaging business.industry Middle Aged medicine.disease Radioactivity Embolism medicine Upper gastrointestinal Equipment Contamination Humans In patient Female Radiology Cerebral perfusion pressure Cardiology and Cardiovascular Medicine business Nuclear medicine Radionuclide Imaging Technetium-99m Cost containment Echocardiography Transesophageal |
| Zdroj: | American heart journal. 130(2) |
| ISSN: | 0002-8703 |
| Popis: | The many uses of transesophageal echocardiography and its safety in several clinical circumstances have been described. 1-5 The performance of transesophageal echocardiography in a patient who has received a radiopharmaceutical product poses several potential problems. There is a predictable distribution and secretion of intravenously administered radionuclides to the upper gastrointestinal tract. Therefore, in theory, radionuclide contamination of the transesophageal scope may occur by performing studies in patients undergoing nuclear imaging studies. Use of a contaminated transesophageal scope would unnecessarily result in internal radioactivity exposure to subsequent patients undergoing transesophageal echocardiography. We are unaware of any studies reporting the potential for contamination of transesophageal scopes by radionuclides in patients undergoing standard nuclear imaging studies. It is important to note that in today's climate of cost containment, many patients undergo multiple test in a single day to decrease the duration of hospitalization. Knowledge as to whether radionuclide contamination occurs and whether its magnitude potentially precludes further use of the transesophageal scope until radioactivity returns to control levels is of importance. If transesophageal scopes are significantly contaminated by radionuclides from patients undergoing nuclear imaging studies and cannot be effectively and quickly decontaminated, the subsequent use of the contaminated transesophageal scope will be delayed as dictated by the physical half-life of the contaminating radionuclide. We describe our experience in two patients who underwent transesophageal echocardiography after intravenous administration of radiopharmaceutical products. Case 1. A 60-year-old man underwent a clinically indicated transesophageal echocardiographic study with a biplane transesophageal scope to search for a possible cardiac source of embolism. Twenty millicuries of technetium 99m exametazime (Ceretec) was injected intravenously for a cerebral perfusion scan 30 minutes before insertion of the biplane transesophageal scope. The insertion |
| Databáze: | OpenAIRE |
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