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Specialty: Nuclear Medicine
Procedure: Angiography
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Total 16 results found since Jan 2013.
The prognostic value of CZT SPECT myocardial blood flow (MBF) quantification in patients with ischemia and no obstructive coronary artery disease (INOCA): a pilot study
ConclusionThe preliminary results demonstrated that quantitative analysis on CZT SPECT provides prognostic value for INOCA patients, which may allow the stratification for early prevention and intervention.
Source: European Journal of Nuclear Medicine and Molecular Imaging - February 14, 2023 Category: Nuclear Medicine Source Type: research
Prognostic value of combined coronary angiography-derived IMR and myocardial perfusion imaging by CZT SPECT in INOCA
ConclusioncaIMR-derived CMD is associated with increased risk of MACE among INOCA patients. Patients with abnormalities on both caIMR and MPI had the worse outcomes.Graphical abstract
Source: Journal of Nuclear Cardiology - August 2, 2022 Category: Nuclear Medicine Source Type: research
Evaluation of non-stenotic carotid atherosclerotic plaques with combined FDG-PET imaging and CT angiography in patients with ischemic stroke of unknown origin
ConclusionsIn patients with ischemic stroke of unknown origin and non-stenotic plaques, we found an increased prevalence of high-risk plaques features ipsilateral vs. contralateral to stroke on FDG-PET-CTA imaging suggesting a causal role for these plaques.
Source: Journal of Nuclear Cardiology - January 18, 2021 Category: Nuclear Medicine Source Type: research
Prognostic value of myocardial perfusion imaging with D-SPECT camera in patients with ischemia and no obstructive coronary artery disease (INOCA)
ConclusionsD-SPECT MPI provides excellent prognostic information, with a more severe prognosis in patients with abnormal D-SPECT MPI. INOCA patients with abnormal D-SPECT MPI experience a poor prognosis similar to that of patients with obstructive CAD.
Source: Journal of Nuclear Cardiology - September 29, 2020 Category: Nuclear Medicine Source Type: research
Preliminary study about the relationship between degree of internal carotid artery stenosis, wall shear stress on MR angiography and 18F-FDG uptake on PET/CT
Conclusions: These preliminary results indicated that there were significant correlations between degree of internal carotid artery stenosis, WSS and 18F-FDG uptake in patients with carotid artery stenosis. Furthermore, the relationship between WSS and 18F-FDG uptake was higher than that between degree of internal carotid artery stenosis and 18F-FDG uptake.
Source: Journal of Nuclear Medicine - May 14, 2020 Category: Nuclear Medicine Authors: Takami, Y., Norikane, T., Yamamoto, Y., Fujimoto, K., Mitamura, K., Nishiyama, Y. Tags: Clinical Science (Poster Session) Source Type: research
Unilateral Absence of the Basal Ganglia on 123I-Ioflupane DaTScan
This 33-year-old man presented with hemorrhagic stroke manifesting with left hemiparesis and right ptosis. Angiography revealed no patent carotids. The anterior and middle cerebral arteries were filling collaterally through the posterior vertebrobasilar pathway. The presumptive diagnosis was moyamoya disease. The etiology of the bleeding was right basilar tip aneurysm that subsequently had partial coil placement. Months later, the neck of the aneurysm perforated and second coiling was performed. Later on follow-up, patient developed left hand tremor. A radionuclide DATscan revealed total absence of right-sided basal gangli...
Source: Clinical Nuclear Medicine - September 11, 2019 Category: Nuclear Medicine Tags: Interesting Images Source Type: research
Nutrition, risk factors, prevention, and imaging: The 2018 Mario Verani Lecture
AbstractHeart disease has been the leading cause of death in the United States since 1918. Cardiac mortality rates have dramatically decreased in this era of advanced medical and interventional therapies. However, this has been aptly described as “mopping up the floor instead of turning off the faucet.” With this recognition, prevention in cardiology is poised to become a central focus. Within prevention, dietary intervention is recognized as the single largest opportunity for improved cardiovascular outcomes, including improvement or el imination of cardiac risk factors, prevention of myocardial infarction, stroke and...
Source: Journal of Nuclear Cardiology - November 5, 2018 Category: Nuclear Medicine Source Type: research
Carotid artery atherosclerosis:plaque imaging in the personalized-medicine era
Conclusion: The evolution of atherosclerosis imaging and the emergence of new methods to measure atherosclerotic plaque vulnerability, particularly in the field of molecular imaging, have provided new insights into the pathophysiology of atherosclerosis and can be utilized in drug discovery and efficacy trials.
Source: Journal of Nuclear Medicine - May 23, 2018 Category: Nuclear Medicine Authors: Gharavi, M., Saboury, B., Werner, T., Alavi, A. Tags: Educational Exhibits Source Type: research
Rates of Referral to Coronary Angiography After Positron Emission Tomography (PET) Myocardial Perfusion Imaging (MPI)
Conclusions: About 1 in 5 patients undergoing PET MPI are referred for coronary angiography within 90 days of testing, a rate greater than that reported for SPECT MPI, likely due to higher baseline risk of patients undergoing PET MPI testing. While referral rates for coronary angiography varied based on the presence or absence of prior documented clinical CAD and presence of test abnormalities, nearly 36% of patients with moderate-severe ischemia were not referred. Further work is needed to characterize why such patients are not referred for invasive evaluation to optimize the use of PET MPI in this high-risk population.
Source: Journal of Nuclear Medicine - May 23, 2018 Category: Nuclear Medicine Authors: Patel, K., Spertus, J., Kureshi, F., Al Badarin, F., McGhie, A., Kennedy, K., Courter, S., Case, J., Thompson, R., Chan, P., Bateman, T. Tags: Cardiovascular Clinical Science Poster Session Source Type: research
Predicting cardiovascular events associated with normal and abnormal myocardial perfusion imaging and normal coronary angiogram
Conclusion: Abnormal MPI predicts a higher prevalence of future cardiovascular events than by CA alone. Since the MPI measures the physiology of coronary flow including the microvasculature and the coronary flow reserve, these parameters may be more accurate in predicting the likelihood of future events than coronary stenosis alone. Research support: Veterans Health Administration
Source: Journal of Nuclear Medicine - May 24, 2017 Category: Nuclear Medicine Authors: Allen, S., Singla, A., Romana, B., Chockalingam, A., Zuidema, M., Dresser, T. Tags: Cardiovascular Clinical Science Posters Source Type: research
18F-Choline Uptake in Acute Ischemic Stroke
Abstract: A 75-year-old man with a history of prostate cancer was referred to our department to perform 18F-choline (FCH) PET/CT. FCH PET/CT showed a markedly increased uptake in the right temporoparietal junction brain. Three weeks earlier, acute ischemic stroke was diagnosed in the right temporoparietal junction brain on diffusion-weighted sequence and thrombosis in a distal branch of the right middle cerebral artery on MR angiography. Choline precursors promote repair and growth of cell membranes in neurologic diseases, so FCH PET/CT uptake could be explained by repair processes during early outcome of acute ischemic stroke.
Source: Clinical Nuclear Medicine - January 10, 2017 Category: Nuclear Medicine Tags: Interesting Images Source Type: research
Causal role of non-stenotic hypodense plaques with high FDG uptake detected with PET-CT angiography in patients with unknown cause of stroke?
Conclusions In this exploratory study, we found a high prevalence of non-stenotic hypodense plaques with high FDG uptake (TBR max. > 1.80) in carotid arteries ipsilateral to cerebral ischemia suggesting a causal role for these plaque in patients with unknown cause of stroke. In comparison to high-resolution MRI, the imaging criteria used in this study for the identification of complicated plaques were very simple and easy to implement. In addition, FDG-PET-CTA allows for the evaluation of non-stenotic plaques along the whole length of supra-aortic trunks. Further studies with a larger number of patients are requested to...
Source: Journal of Nuclear Medicine - May 23, 2016 Category: Nuclear Medicine Authors: Mikail, N., Mazighi, M., Meseguer, E., Guidoux, C., Leseche, G., Rouzet, F., Le Guludec, D., Amarenco, P., Hyafil, F. Tags: MTA II: Cardiovascular Clinical Science Posters Source Type: research
CT angiography collateral scoring: Correlation with DWI infarct size in proximal middle cerebral artery occlusion stroke within 12h onset
Conclusions In patients with major acute MCA occlusion strokes, CTA collateral grading is significantly correlated with admission DWI size. This finding may be relevant for clinical practice and helpful for guiding treatment decision and predicting clinical outcome.
Source: The Egyptian Journal of Radiology and Nuclear Medicine - April 13, 2016 Category: Nuclear Medicine Source Type: research
