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Conventional and molecular imaging in sickle cell disease
Conclusions: Central nervous system: About 25% of SCD patients are affected by vascular involvement of central nervous system. CT scan has been used to detect cerebral infarction. Subclinical cranial MRI lesions yield important predictive values as a risk factor of stroke, even when detected in asymptomatic patients. SPECT is a useful technique for early detection of deficits in cerebral perfusion in patients with SCD. Decreases in cerebral perfusions may lead to silent infarction, stroke, or neurocognitive diseases. PET may improve sensitivity in detection of impaired metabolism in the area surrounding a major vessel infa...
Source: Journal of Nuclear Medicine - May 18, 2021 Category: Nuclear Medicine Authors: Taghvaei, R., Sirous, R., Raynor, W., Amanullah, A., Werner, T., Revheim, M.-E., Hoilund-Carlsen, P. F., Alavi, A. Tags: General Clinical Specialties Source Type: research

Potential applications of FDG-PET/MRI in detecting vascular dementia
Conclusions: FDG-PET/MRI may be a valuable tool in the diagnosis of VaD. However, the paucity of data in the field necessitates a further analysis of its similarity to FDG-PET/CT in results. Novel studies should be conducted to explore various scanners, patient populations, and MRI protocols to better inform the identification of VaD.
Source: Journal of Nuclear Medicine - May 14, 2020 Category: Nuclear Medicine Authors: Bhattaru, A., Zhang, V., Hancin, E., Borja, A., Rojulpote, K. V., Werner, T., Revheim, M.-E., Alavi, A. Tags: Educational Exhibits Poster Session I Source Type: research

F-18 FDG PET/CT in Management of Necrotizing Otitis Externa
1157Objectives: Necrotizing otitis externa (NOE), also referred to as "malignant otitis externa," is an uncommon complication of external ear canal infections, resulting in skull base osteomyelitis. Multiple pathogens have been implicated, the most common of which is Pseudomonas aeruginosa. Risk factors include diabetes, advanced age, and immunocompromised status. Clinical features include unremitting otalgia, otorrhea, headache, and cranial nerve involvement. Treatment consists of prolonged parenteral antibiotics and selective surgical debridement. Inadequate treatment of NOE is associated with significant morbidities, in...
Source: Journal of Nuclear Medicine - May 14, 2020 Category: Nuclear Medicine Authors: Thorsness, S., Friedman, N., Moore, D., Cohen, E., Reddy, S. Tags: Educational Exhibits Poster Session I Source Type: research

Alzheimers Disease: A Review of Recent Developments and the Role of Imaging
1114Purpose: Alzheimer’s disease (AD), the most common form of dementia, is a devastating illness that will affect an estimated 5.7 million Americans and almost 50 million people worldwide in 2018, with numbers expected to nearly triple by 2050. While mortality related to heart disease and stroke has continued to decline, the rate of AD-related death in the United States more than doubled in the period from 2000-2015. Now the 6th leading cause of death, it is the least preventable and treatable of the major causes, and places a tremendous financial, physical, and emotional burden on the estimated 16 million unpaid ca...
Source: Journal of Nuclear Medicine - May 20, 2019 Category: Nuclear Medicine Authors: Ismail, H., Wang, L. Tags: Educational Exhibit Posters Source Type: research

Current Challenges for Imaging of Hypoxia in 2019
1128Introduction: Tissues with low levels of oxygen often respond poorly to radiation therapy and chemo / immune therapies. Hypoxia in tumor bearing tissue is associated with worse clinical outcome and this has been known for over 50 years. Alterations to radiation therapy planning via providing localized boost to hypoxic tissues cannot be made without knowing exactly where hypoxia exists. However, there is no FDA approved agent to assess for hypoxia in tumor tissues, there is no accepted standard methodology for measuring hypoxia in patients, nor are there FDA approved agents for treating hypoxia. There are multiple PET i...
Source: Journal of Nuclear Medicine - May 20, 2019 Category: Nuclear Medicine Authors: Rodgers, B., Kotlyarov, E. Tags: Educational Exhibit Posters 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

The value of F-18 FDG PET-CT scan in the diagnosis of infection of unknown origin in a patient with aortic valve replacement. in the diagnosis of infection of unknown origin in a patient with Aortic valve replacement. value of F-18 FDG PET/CT scan in the diagnosis of infection of unknown origin in a patient with Aortic valve replacement.
Conclusion: This case illustrates the value of F-18 FDG PET/CT in the diagnosis of and localization of a periaortic valve abscess in a patient with multiple valve replacements, recurrent fevers/sepsis and inconclusive imaging with transthoracic echocardiogram, transesophageal echocardiogram and Indium-111 WBC scan. The localization of the FDG activity to the posterior aspect of the valve which corresponded to the findings on transthoracic echocardiogram was key. Research Support:
Source: Journal of Nuclear Medicine - May 24, 2017 Category: Nuclear Medicine Authors: Muhleman, M., Kaur, H., Patel, M., Rydberg, J. Tags: Educational Exhibits Posters Source Type: research

All That Glitters Is not Gold: Peals and Pitfalls in I-131 Scans for Differentiated Thyroid Cancer
Conclusion: We review thyroid gland physiology and describe a systemic overview of potential false positive and false negative lack of uptake of radioiodine in the whole body along with illustrations and cases. By understanding the physiology and characteristics of radioiodine uptake and correlating with anatomical imaging, biochemical data, and clinical findings, physicians can be more confident in establishing proper management for patients with DTC using radioiodine whole body scans. Research Support: N/A
Source: Journal of Nuclear Medicine - May 24, 2017 Category: Nuclear Medicine Authors: Lazaga, F., Sharma, S., Sharma, P., Williams, S. Tags: Educational Exhibits Posters Source Type: research

Time sequential monitoring of the translocator protein 18 kDa (TSPO) and acetylcholinesterase (AChE) expression in a middle cerebral artery occlusion (MCAO) rat model using PET radiotracers
Conclusions Our results indicate that an AChE level elevate in the early course of disease and becomes normal, while TSPO expression elevates later, and is sustained throughout the post-ischemic injury. It is known that different inflammatory mechanisms are involved according to the time window after stroke 4. AChE was reported to be related with early apoptosis after stroke. TSPO related cytokines such as TNF-α and IL-6 increased later. Our study shows that the brain inflammatory process can be demonstrated and quantified with PET imaging. RESEARCH SUPPORT: .
Source: Journal of Nuclear Medicine - May 23, 2016 Category: Nuclear Medicine Authors: Song, Y. S., Moon, B. S., Chung, Y. A., Lee, B. C., Kim, S. E. Tags: MTA I: Educational Exhibits Posters Source Type: research