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Al-Mallah MH, Bateman TM, Branch KR, Crean A, Gingold EL, Thompson RC, McKenney SE, Miller EJ, Murthy VL, Nieman K, Villines TC, Yester MV, Einstein AJ, Mahmarian JJ. 2022 ASNC/AAPM/SCCT/SNMMI guideline for the use of CT in hybrid nuclear/CT cardiac imaging. J Nucl Cardiol 2022; 29:3491-3535. [PMID: 36056224 DOI: 10.1007/s12350-022-03089-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 08/08/2022] [Indexed: 01/29/2023]
Affiliation(s)
- Mouaz H Al-Mallah
- Department of Cardiology, Houston Methodist DeBakey Heart and Vascular Center, Houston, TX, USA.
| | - Timothy M Bateman
- Department of Cardiology, Saint Luke's Mid America Heart Institute, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Kelley R Branch
- Division of Cardiovascular, University of Washington, Seattle, WA, USA
| | - Andrew Crean
- Division of Cardiovascular Medicine, Ottawa Heart Institute, Ottawa, ON, Canada
| | - Eric L Gingold
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Randall C Thompson
- Department of Cardiology, Saint Luke's Mid America Heart Institute, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Sarah E McKenney
- Department of Radiology, University of California, Davis Medical Center, Sacramento, CA, USA
| | - Edward J Miller
- Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Venkatesh L Murthy
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Koen Nieman
- Departments of Cardiovascular Medicine and Radiology, Stanford University Medical Center, Stanford, CA, USA
| | - Todd C Villines
- Division of Cardiovascular Medicine, University of Virginia Health System, Charlottesville, VA, USA
| | - Michael V Yester
- Department of Radiology, School of Medicine, University of Alabama Medical Center, Birmingham, AL, USA
| | - Andrew J Einstein
- Division of Cardiology, Department of Medicine, and Department of Radiology, Columbia University Irving Medical Center and New York-Presbyterian Hospital, New York, NY, USA
| | - John J Mahmarian
- Department of Cardiology, Houston Methodist DeBakey Heart and Vascular Center, Houston, TX, USA
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Abstract
Thallium (Tl) is released into the environment, where is present at very low levels, from both natural and anthropogenic sources. Tl is considered as one of the most toxic heavy metals; it is a non-essential metal, present in low concentrations in humans. Tl toxicity causes dermatological and gastrointestinal diseases and disorders of the nervous system, and may even result in death. Many isotopes of Tl exist, with different uses. One of the isotopes of this metal (201Tl) is used in cardiovascular scintigraphy and for the diagnosis of malignant tumors such as breast or lung cancer and osteosarcoma bone cancer. Many Tl compounds are tasteless, colorless, and odorless. Due to these characteristics and their high toxicity, they have been used as poisons in suicides and murders for criminal purposes, as well as instances of accidental poisoning. Impaired glutathione metabolism, oxidative stress, and disruption of potassium-regulated homeostasis may play a role in the mechanism of Tl toxicity. Solanum nigrum L. and Callitriche cophocarpa have been suggested as promising agents for the phytoremediation of Tl. In addition, macrocyclic compounds such as crown ethers (18-crown-6) are good candidates to absorb Tl from wastewater. Through this review, we present an update to general information about the uses and toxicity of Tl. Furthermore, the attention is focused on detoxification therapies.
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Farrell CM, Pinson JA, Dennett AM. CT Attenuation correction and its impact on image quality of myocardial perfusion imaging in coronary artery disease: A systematic review. ASIA OCEANIA JOURNAL OF NUCLEAR MEDICINE & BIOLOGY 2021; 9:31-38. [PMID: 33392347 DOI: 10.22038/aojnmb.2020.50692.1346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Myocardial perfusion imaging is a non-invasive procedure that plays an integral role in the diagnosis and management of coronary artery disease. With the routine use of computerised tomography attenuation correction (CTAC) in myocardial perfusion imaging still under debate, the aim of this review was to determine the impact of CTAC on image quality in myocardial perfusion imaging. Medline, Embase and CINAHL were searched from the earliest available time until August 2019. Methodological quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies version 2. Details pertaining to image quality and diagnostic accuracy were analysed, and results summarised descriptively. Three studies with 'unclear' risk of bias and low applicability concerns (1002 participants) from a yield of 2725 articles were identified. Two studies demonstrated an increase in image quality, and one study found no difference in image quality when using CTAC compared to no attenuation correction. Benefits of CTAC for improving image quality remain unclear. Given the potential exposure risk with the addition of CTAC, patient and clinician factors should inform decision making for use of CTAC in myocardial perfusion imaging for coronary artery disease.
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Affiliation(s)
- Claire M Farrell
- Department of Medical Imaging, Medical Radiations and Nuclear Medicine, Eastern Health, Victoria, Australia
| | - Jo-Anne Pinson
- Department of Medical Imaging, Monash Health, Peninsula Health, Victoria, Australia.,Department of Medical Imaging and Radiation Sciences, Monash University, Australia
| | - Amy M Dennett
- School of Allied Health, Human Services and Sport, La Trobe University, Allied Health Clinical Research Office, Eastern Health, Victoria, Australia
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