Ncbi.nlm.nih.gov

68 Ga-FAPI PET/CT: Tracer Uptake In 28 Different Kinds Of

Methods: 68 Ga-FAPI PET/CT scans were requested by various referring physicians according to individual clinical indications that were considered insufficiently covered by 18 F-FDG PET/CT or other imaging modalities. All PET/CT was performed 1 h after injection of 122-312 MBq of 68 Ga-FAPI-04. We retrospectively identified 80 patients with

Actived: Tuesday May 24, 2022

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Quantification of Lung PET Images: Challenges and ...

Posted: (53 years ago) This article reviews the data evaluating 18 F-FDG PET quantification approaches in lung diseases, focusing on methods to account for variations in lung components and the interpretation of the derived parameters. The diseases reviewed include acute respiratory distress syndrome, chronic obstructive pulmonary disease, and interstitial lung ...

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COVID-19 mRNA Vaccination-Induced Lymphadenopathy Mimics ...

Posted: (53 years ago) We present here a 72-year-old man with mantle cell lymphoma who has completed chemotherapy and achieved complete metabolic response to the therapy 10 months ago. Series follow-up FDG PET/CT scans have been negative for lymphoma. Current FDG PET/CT scan showed a new cluster of subcentimeter left axillary lymphadenopathy with avid FDG uptake.

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Lugano 2014 criteria for assessing FDG-PET/CT in lymphoma ...

Posted: (53 years ago) Abbreviations: CT, computed tomography; PET, positron emission tomography; 5PS, 5-point scale; SUV max, maximum standardized uptake value. Although the Lugano 2014 criteria represent a major advance in the assessment of FDG-avid lymphomas, there are a number of specific modifications to consider when optimizing the criteria for use in multi ...

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FDG PET and PET/CT

Posted: (53 years ago) Molecular imaging with positron emission tomography (PET) using tumour-seeking radiopharmaceuticals has gained wide acceptance in oncology with many clinical applications. The hybrid imaging modality PET/CT allows assessing molecular as well as morphologic information at the same time. Therefore, PET/CT represents an efficient tool for whole ...

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PET/MRI in prostate cancer: a systematic review and meta ...

Posted: (53 years ago) Aim: In recent years, the clinical availability of scanners for integrated positron emission tomography (PET) and magnetic resonance imaging (MRI) has enabled the practical potential of multimodal, combined metabolic-receptor, anatomical, and functional imaging to be explored. The present systematic review and meta-analysis summarize the diagnostic information provided by PET/MRI in patients ...

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Fundamental Limits of Spatial Resolution in PET - PMC

Posted: (53 years ago) The fundamental limits of spatial resolution in positron emission tomography (PET) have been understood for many years. The physical size of the detector element usually plays the dominant role in determining resolution, but the combined contributions from acollinearity, positron range, penetration into the detector ring, and decoding errors in the detector modules often combine to be of ...

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FDG PET/CT in the liver: lesions mimicking malignancies

Posted: (53 years ago) Purpose: 18F-fluorodeoxyglucose (FDG) PET/CT is invaluable in managing liver lesions, in particular in the evaluation of suspected liver metastases. It is both sensitive and specific in detecting liver metastases from a wide range of primary cancers, and may change clinical management, most commonly by detecting additional lesions and decreasing the number of futile surgeries.

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State-of-the-art of FAPI-PET imaging: a systematic review ...

Posted: (53 years ago) FAPI-PET appears promising, especially in imaging cancers unsuitable for [18F]FDG imaging, particularly primary lesions and distant metastases. However, high-level evidence is needed to define its role, specifically to identify cancer types, non-oncological diseases, and clinical settings …

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Physiological uptake in FDG PET simulating disease - PMC

Posted: (53 years ago) Many potential pitfalls and artefacts have been described in PET imaging that uses F-18 fluorodeoxyglucose (FDG). Normal uptake of FDG occurs in many sites of the body and may cause confusion in interpretation particularly in oncology imaging. Clinical correlation, awareness of the areas of normal uptake of FDG in the body and knowledge of ...

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Breast cancer: initial workup and staging with FDG PET/CT ...

Posted: (53 years ago) During the last years, 18F-fluorodeoxyglucose positron emission tomography coupled with computed tomography (FDG-PET/CT) has gained an increasing role in the pre-treatment staging of breast cancer. FDG-PET/CT has shown high accuracy in detecting extra axillary lymph nodes and distant metastases. Given the high incidence of BC, costs of FDG-PET ...

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Positron Emission Tomography (PET) radiotracers in ...

Posted: (53 years ago) PET (Positron Emission Tomography) is a nuclear medicine imaging method, frequently used in oncology during the last years. It is a non-invasive technique that provides quantitative in vivo assessment of physiological and biological phenomena. PET has found its application in common practice for the management of various cancers.

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18 F-FDG brain PET hypometabolism in patients with long ...

Posted: (53 years ago) Methods: PET scans of 35 patients with long COVID were compared using whole-brain voxel-based analysis to a local database of 44 healthy subjects controlled for age and sex to characterize cerebral hypometabolism. The individual relevance of this metabolic profile was evaluated to classify patients and healthy subjects.

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Imaging of COVID-19: CT, MRI, and PET - PMC

Posted: (53 years ago) Nevertheless, multiple authors staunchly recommend against the use of PET/CT as a primary diagnostic modality for investigating cases of suspected COVID-19 in the emergency setting.11, 27, 41, 69, 84, 85 As noted by Rafiee et al. PET is an expensive imaging modality associated with prolonged acquisition times and increased radiation burden in ...

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The Use of Chemotherapy to Prolong the Life of Dogs ...

Posted: (53 years ago) The owner is able to spend some time with their pet, whilst coming to terms with losing it and the owner is able to accept the situation. The owner and veterinarian may view chemotherapy as inappropriate for dogs and the financial costs too high for an unlikely outcome. If chemotherapeutic drugs are in short supply for the treatment of humans ...

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Bone Scan - StatPearls - NCBI Bookshelf

Posted: (53 years ago) Skeletal scintigraphy, commonly referred to as a bone scan (BS), is a valuable and versatile nuclear medicine tool. The examination is most commonly performed using the radiotracer Technetium-99m (Tc99m) complexed to a diphosphonate, either methylene diphosphonate (MDP) forming Tc99m-MDP or hydroxydiphosphonate (HDP) forming Tc99m-HDP. Tc99m is the most common radionuclide used in nuclear ...

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A bacterium that degrades and assimilates poly(ethylene ...

Posted: (53 years ago) By screening natural microbial communities exposed to PET in the environment, we isolated a novel bacterium, Ideonella sakaiensis 201-F6, that is able to use PET as its major energy and carbon source. When grown on PET, this strain produces two enzymes capable of hydrolyzing PET and the reaction intermediate, mono(2-hydroxyethyl) terephthalic acid.

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Mantle Cell Lymphoma - StatPearls - NCBI Bookshelf

Posted: (53 years ago) Mantle cell lymphoma (MCL) is a rare subtype of B-cell non-Hodgkin lymphomas (NHLs) characterized by a (1,14) translocation resulting in overexpression of the cyclin D1 (CCND1) gene. The variety of morphologic variants may make this a challenging diagnosis, although some cases are uncomplicated. It typically follows an aggressive clinical course (aggressive MCL), although an indolent leukemia ...

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Psychosocial and Psychophysiological Effects of Human ...

Posted: (53 years ago) Among pet owners the presence of the pet attenuated the stress response more than the presence of the spouse. Hypertensive patients profit from acquiring and having a pet with regard to stress-related parameters such as heart rate blood pressure and plasma renin activity, an indicator of hypertension.

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A Review of the Essential Components of Quality Palliative ...

Posted: (53 years ago) Introduction. T he home is an important setting for palliative care because this is where most people with a life-limiting illness want to be cared for and die. 1 Moreover, hospital care is costly and usually not optimal for the individual and the family at end of life. 2,3 Homecare includes healthcare services (e.g., nursing, physiotherapy, and occupational therapy), practical services (e.g ...

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Paws for Thought: A Controlled Study Investigating the ...

Posted: (53 years ago) The loss of a pet can be a tremendously emotional event and as a university student, this could cause a distraction from studies and social activities. Furthermore, Eckerd et al. report that many bereaved pet owners experience symptoms of feeling depressed, numbness, crying, feeling guilt, disbelief, or experiencing a sense of loneliness. Given ...

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The composition of human milk - PubMed

Posted: (53 years ago) PIP: A complete and authentic picture of the qualitative and quantitative composition of the milk of Homo sapiens is presented. Older original references are reexamined along with data prublished during the last 2 decades. Mature human milk is made up of 3%-5% fat, 0.8%-0.0% protein, 6.9%-7.2% carbohydrate calculated as lactose, and 0.2% mineral constituents expressed as ash.

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Autonomic dysfunction: Diagnosis and management

Posted: (53 years ago) The autonomic nervous system is designed to maintain physiologic homeostasis. Its widespread connections make it vulnerable to disruption by many disease processes including primary etiologies such as Parkinson's disease, multiple system atrophy, dementia with Lewy bodies, and pure autonomic failure and secondary etiologies such as diabetes mellitus, amyloidosis, and immune-mediated illnesses.

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Shift Work and Shift Work Sleep Disorder - PMC

Posted: (53 years ago) Definition and Prevalence of Shift Work. Although the term “shift work” lacks a consistent definition, 1 shift work has been defined as occurring when at least a portion of the shift occurs between 7:00 pm and 6:00 am. 2 In the United States, the work schedules of nearly 20% of employed adults meet this definition, with 18% to 26% of workers beginning their shift between 2:00 pm and 6:30 ...

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A Review of Domestic Dogs' (Canis Familiaris) Human-Like ...

Posted: (53 years ago) All 6 pet dogs in this study were able to use pointing, head nodding, bowing, and head turning to identify the target bowl without explicit training in the first fifteen trials, and the only significant initial difference among dogs was the ability to use gazing as a discriminative stimulus (Miklósi et al., 1998).

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Cell-programmed nutrient partitioning in the tumour ...

Posted: (53 years ago) Cancer cells characteristically consume glucose through Warburg metabolism 1, a process that forms the basis of tumour imaging by positron emission tomography (PET).Tumour-infiltrating immune cells also rely on glucose, and impaired immune cell metabolism in the tumour microenvironment (TME) contributes to immune evasion by tumour cells 2-4.However, whether the metabolism of immune cells is ...

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Hodgkin lymphoma: A review and update on recent progress

Posted: (53 years ago) Hodgkin lymphoma (HL) is a unique hematopoietic neoplasm characterized by cancerous Reed-Sternberg cells in an inflammatory background. Patients are commonly diagnosed with HL in their 20s and 30s, and they present with supradiaphragmatic lymphadenopathy, often with systemic B symptoms. Even in adva …

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ImmunoPET: Concept, Design, and Applications

Posted: (53 years ago) Immuno-positron emission tomography (immunoPET) is a paradigm-shifting molecular imaging modality combining the superior targeting specificity of monoclonal antibody (mAb) and the inherent sensitivity of PET technique. A variety of radionuclides and mAbs have been exploited to develop immunoPET prob …

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