keyword
MENU ▼
Read by QxMD icon Read
search

Suv

keyword
https://www.readbyqxmd.com/read/28636732/positron-emission-tomography-enhancement-after-vocal-fold-injection-medialization
#1
Nazaneen Grant, Richard J Wong, Dennis H Kraus, Heiko Schoder, Ryan C Branski
The potential for the misinterpretation of positron-emission tomography (PET) scans in the context of a possible malignancy has been confirmed in a case report showing increased 18F-fluorodeoxyglucose (FDG) uptake after unilateral vocal fold augmentation medialization. We sought to expand these findings by investigating FDG uptake in a larger cohort of patients via a retrospective chart review. We examined the records of 15 adults-8 men and 7 women-who had undergone vocal fold augmentation for unilateral vocal fold paralysis and at least one subsequent PET scan...
June 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28634684/heterogeneity-index-evaluated-by-slope-of-linear-regression-on-18-f-fdg-pet-ct-as-a-prognostic-marker-for-predicting-tumor-recurrence-in-pancreatic-ductal-adenocarcinoma
#2
Yong-Il Kim, Yong Joong Kim, Jin Chul Paeng, Gi Jeong Cheon, Dong Soo Lee, June-Key Chung, Keon Wook Kang
PURPOSE: (18)F-Fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) has been investigated as a method to predict pancreatic cancer recurrence after pancreatic surgery. We evaluated the recently introduced heterogeneity indices of (18)F-FDG PET/CT used for predicting pancreatic cancer recurrence after surgery and compared them with current clinicopathologic and (18)F-FDG PET/CT parameters. METHODS: A total of 93 pancreatic ductal adenocarcinoma patients (M:F = 60:33, mean age = 64...
June 20, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28631142/parametric-imaging-of-11-c-flumazenil-binding-in-the-rat-brain
#3
Isadora Lopes Alves, David Vállez Vállez García, Andrea Parente, Janine Doorduin, Ana Maria Marques da Silva, Michel Koole, Rudi Dierckx, Antoon Willemsen, Ronald Boellaard
PURPOSE: This study evaluates the performance of several parametric methods for assessing [(11)C]flumazenil binding distribution in the rat brain. PROCEDURES: Dynamic (60 min) positron emission tomography data with metabolite-corrected plasma input function were retrospectively analyzed (male Wistar rats, n = 10). Distribution volume (V T) images were generated from basis function method (BFM), Logan graphical analysis (Logan), and spectral analysis (SA). Using the pons as pseudo-reference tissue, binding potential (BP ND and DVR-1) images were obtained from receptor parametric imaging algorithms (RPM and SRTM2) and reference Logan (RLogan)...
June 19, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28629569/in-depth-analysis-of-interreader-agreement-and-accuracy-in-categorical-assessment-of-brown-adipose-tissue-in-18-fdg-pet-ct
#4
Anton S Becker, Caroline Zellweger, Khoschy Schawkat, Sanja Bogdanovic, Valerie Doan Phi van, Hannes W Nagel, Christian Wolfrum, Irene A Burger
PURPOSE: To evaluate the interreader agreement of a three-tier craniocaudal grading system for brown fat activation and investigate the accuracy of the distinction between the three grades. MATERIALS AND METHODS: After IRB approval, 340 cases were retrospectively selected from patients undergoing (18)FDG-PET/CT between 2007 and 2015 at our institution, with 85 cases in each grade and 85 controls with no active brown fat. Three readers evaluated all cases independently...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28626254/the-maximum-standardized-uptake-value-increment-calculated-by-dual-time-point-18-f-fluorodeoxyglucose-positron-emission-tomography-predicts-survival-in-patients-with-oral-tongue-squamous-cell-carcinoma
#5
Natsuki Yonezawa, Tsutomu Minamikawa, Kazuhiro Kitajima, Yusuke Takahashi, Ryohei Sasaki, Ken-Ichi Nibu, Takahide Komori
The aim of this study was to investigate the prognostic value of dual-time-point (DTP) (18)F-fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) imaging in primary oral tongue squamous cell carcinoma (OTSCC). The study included 52 patients who underwent preoperative (18)F-FDG PET scans at two time points, namely 1 h and 2 h after injection. The following PET parameters were calculated: maximum standardized uptake value (SUVmax) for both time points (SUV early, SUV delayed); retention index (RI); and SUVmax increment (ΔSUVmax)...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28625749/preclinical-evaluation-of-melanocortin-1-receptor-mc1-r-specific-68-ga-and-44-sc-labeled-dota-napamide-in-melanoma-imaging
#6
Gábor Nagy, Noémi Dénes, Adrienn Kis, Judit P Szabó, Ervin Berényi, Ildikó Garai, Péter Bai, István Hajdu, Dezső Szikra, György Trencsényi
PURPOSE: Alpha melanocyte stimulating hormone (α-MSH) enhances melanogenesis in melanoma malignum by binding to melanocortin-1 receptors (MC1-R). Earlier studies demonstrated that alpha-MSH analog NAPamide molecule specifically binds to MC1-R receptor. Radiolabeled NAPamide is a promising radiotracer for the non-invasive detection of melanin producing melanoma tumors by Positron Emission Tomography (PET). In this present study the MC1-R selectivity of the newly developed Sc-44-labeled DOTA-NAPamide was investigated in vitro and in vivo using melanoma tumors...
June 15, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28624017/association-of-pharmacokinetic-and-metabolic-parameters-derived-using-simultaneous-pet-mri-initial-findings-and-impact-on-response-evaluation-in-breast-cancer
#7
Amarnath Jena, Sangeeta Taneja, Aru Singh, Pradeep Negi, Shashi Bhushan Mehta, Aashim Ahuja, Manish Singhal, Ramesh Sarin
PURPOSE: To study relationships among pharmacokinetic and (18)F-fluorodeoxyglucose ((18)F-FDG) PET parameters obtained through simultaneous PET/MRI in breast cancer patients and evaluate their combined potential for response evaluation. METHODS: The study included 41 breast cancer patients for correlation study and 9 patients (pre and post therapy) for response evaluation. All patients underwent simultaneous PET/MRI with dedicated breast imaging. Pharmacokinetic parameters and PET parameters for tumor were derived using an in- house developed and vendor provided softwares respectively...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28623878/in-vivo-characterisation-of-a-therapeutically-relevant-self-assembling-18-f-labelled-%C3%AE-sheet-forming-peptide-and-its-hydrogel-using-positron-emission-tomography
#8
O Morris, M A Elsawy, M Fairclough, K J Williams, A McMahon, J Grigg, D Forster, A F Miller, A Saiani, C Prenant
Positron emission tomography (PET) and fluorescence labelling have been used to assess the pharmacokinetics, biodistribution and eventual fate of a hydrogel-forming nonapeptide, FEFKFEFKK (F9) in healthy mice, using (18) F-labelled and fluoresceinisothiocyanate (FITC) - labelled F9 analogues. F9 was site-specifically radiolabelled with 2-[(18) F]fluoro-3-pyridinecarboxaldehyde ([(18) F]FPCA) via oxime bond formation. [(18) F]FPCA-F9 in vivo fate was evaluated both as a solution, following intravenous administration, and as a hydrogel when subcutaneously injected...
June 17, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28623852/frusemide-aids-diagnostic-interpretation-of-68-ga-psma-positron-emission-tomography-ct-in-men-with-prostate-cancer
#9
Niall Fennessy, Jonathan Lee, Jane Shin, Bao Ho, Syed Aman Ali, Royce Paschkewitz, Louise Emmett
INTRODUCTION: (68) Ga-PSMA positron emission tomography-computed tomography (PET/CT) is useful for both staging and assessment of biochemical relapse in men with prostate cancer. Renal excretion of (68) Ga-PSMA can lead to difficulties in scan interpretation, particularly in the pelvis. We evaluated if intravenous Frusemide at the time of (68) Ga-PSMA injection reduces excreted activity artefact and improves diagnostic certainty. METHODS: Sixty-two men with prostate cancer undergoing clinically indicated (68) Ga-PSMA PET/CT were prospectively included, 30 men receiving Frusemide at the time of radiotracer injection...
June 17, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28623376/eanm-earl-harmonization-strategies-in-pet-quantification-from-daily-practice-to-multicentre-oncological-studies
#10
REVIEW
Nicolas Aide, Charline Lasnon, Patrick Veit-Haibach, Terez Sera, Bernhard Sattler, Ronald Boellaard
Quantitative positron emission tomography/computed tomography (PET/CT) can be used as diagnostic or prognostic tools (i.e. single measurement) or for therapy monitoring (i.e. longitudinal studies) in multicentre studies. Use of quantitative parameters, such as standardized uptake values (SUVs), metabolic active tumor volumes (MATVs) or total lesion glycolysis (TLG), in a multicenter setting requires that these parameters be comparable among patients and sites, regardless of the PET/CT system used. This review describes the motivations and the methodologies for quantitative PET/CT performance harmonization with emphasis on the EANM Research Ltd...
June 16, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28619734/-68-ga-psma11-pet-ct-in-newly-diagnosed-carcinoma-of-the-prostate-correlation-of-intraprostatic-psma-uptake-with-several-clinical-parameters
#11
Stefan A Koerber, Maximilian T Utzinger, Clemens Kratochwil, Claudia Kesch, Matthias Haefner, Sonja Katayama, Walter Mier, Andrei H Iagaru, Klaus Herfarth, Uwe Haberkorn, Juergen Debus, Frederik L Giesel
(68)Ga-prostate-specific membrane antigen (PSMA)-positron emission tomography (PET)/ computer tomography (CT) is a promising diagnostic tool for patients with prostate cancer. Our study evaluates standardized uptake values (SUV) in benign prostate tissue and malignant, intraprostatic tumor lesions and correlates results with several clinical parameters. Methods: One hundred and four men with newly diagnosed prostate carcinoma and no previous therapy were included in this study. Maximum SUV (SUVmax) was measured and correlated with biopsy findings and magnetic resonance imaging (MRI)...
June 15, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28612161/texture-analysis-of-fdg-pet-ct-for-differentiating-between-fdg-avid-benign-and-metastatic-adrenal-tumors-efficacy-of-combining-suv-and-texture-parameters
#12
Masatoyo Nakajo, Megumi Jinguji, Masayuki Nakajo, Tetsuya Shinaji, Yoshiaki Nakabeppu, Yoshihiko Fukukura, Takashi Yoshiura
PURPOSE: To retrospectively investigate the SUV-related and texture parameters individually and in combination for differentiating between F-18-fluorodeoxyglucose (FDG)-avid benign and metastatic adrenal tumors with PET/CT. METHODS: Thirteen benign adrenal tumors (BATs) and 22 metastatic adrenal tumors (MATs) with a metabolic tumor volume (MTV) > 10.0 cm(3) and SUV ≥ 2.5 were included. SUVmax, MTV, total lesion glycolysis, and four textural parameters [entropy, homogeneity, intensity variability (IV), and size-zone variability] were obtained...
June 13, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28608875/model-membrane-size-dependent-amyloidogenesis-of-alzheimer-s-amyloid-%C3%AE-peptides
#13
Misaki Kinoshita, Erina Kakimoto, Mayu S Terakawa, Yuxi Lin, Tatsuya Ikenoue, Masatomo So, Toshihiko Sugiki, Ayyalusamy Ramamoorthy, Yuji Goto, Young-Ho Lee
We herein report the mechanism of amyloid formation of amyloid-β (Aβ) peptides on small (SUV) and large unilamellar vesicles (LUVs), which consist of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) lipids. Although Aβ1-42 formed fibrils on SUVs at all POPC concentrations used, the lag time, elongation rate, maximum thioflavin T intensity, and fibrillar morphology were distinct, indicating polymorphic amyloid formation. LUVs, at low POPC concentrations, did not markedly affect fibrillation kinetics; however, increases in POPC concentrations suppressed amyloid formation...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28608242/f-18-fdg-pet-differentiation-of-benign-from-malignant-chondroid-neoplasms-a-systematic-review-of-the-literature
#14
Ty K Subhawong, Aaron Winn, Shai S Shemesh, Juan Pretell-Mazzini
INTRODUCTION: Discriminating among benign chondroid tumors, low-grade chondrosarcomas, and grade 2/3 chondrosarcomas is frequently difficult with standard imaging modalities. We systematically reviewed the literature to determine the performance of PET-CT in making this distinction. METHODS: A systematic review was performed identifying 811 PubMed- and Embase-indexed articles containing combinations of "chondrosarcoma," "enchondroma," "chondroid," "cartilage" and "PET/CT," "PET," "positron...
June 12, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28604476/pet-mr-in-the-assessment-of-pediatric-histiocytoses-a-comparison-to-pet-ct
#15
Andrew C Sher, Robert Orth, Kenneth McClain, Carl Allen, Shireen Hayatghaibi, Victor Seghers
PURPOSE: The aim of this study was to analyze the feasibility and diagnostic performance of F-FDG PET/MR compared with F-FDG PET/CT in a cohort of pediatric histiocytosis patients with regard to image quality, lesion detection, and FDG quantification. METHODS: Children with a diagnosis of Langerhans cell histiocytosis or Rosai-Dorfman disease were prospectively recruited. Seventeen PET/CT and PET/MR examinations were performed on 9 patients (mean age, 6.2 years) following a single-injection dual-imaging protocol...
June 9, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28601381/optimal-reconstruction-matrix-and-pet-image-filtration-for-point-spread-function-and-time-of-flight-reconstruction-a-phantom-study
#16
Jaroslav Ptáček, Pavel Karhan, Petr Fiala
INTRODUCTION: The aim of this study was to determine the optimal image matrix and half-width of the Gaussian filter after iterative reconstruction of the PET image with point-spread function (PSF) and time-of-flight (TOF) correction, based on measuring the recovery coefficient (RC) curves. The measured RC curves were compared to those from an older system which does not use PSF and TOF corrections. MATERIALS AND METHODS: The measurements were carried out on a NEMA IEC Body Phantom...
June 7, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28599465/pulmonary-enteric-adenocarcinoma-with-pancreatic-metastasis-a-case-report
#17
Wen-Wen Sun, Zhi-Hong Xu, Chao-Fu Wang, Fang Wu, Jiu-Mei Cao, Pei-Jing Cui, Wei Huang, Xiao-Long Jin, Biao Li, Ke-Min Chen, Bei-Li Gao, Jia-An Hu
Pulmonary enteric adenocarcinoma is a markedly rare pathological type of lung adenocarcinoma. As the pancreas is a relatively uncommon site for metastasis, the present case is even more unusual. A 62-year-old male was admitted to hospital following the identification of masses in the left chest wall, right abdominal wall and right upper limb, but with no respiratory symptoms. Computed tomography (CT) of the chest revealed a lump in the lung and a mass in the left chest wall, and (18)F-fluorodeoxyglucose ((18)F-FDG) uptake by the lumps was increased...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28597761/metabolic-and-functional-evaluation-of-the-heart-and-lungs-in-pulmonary-hypertension-by-gated-2-18f-fluoro-2-deoxy-d-glucose-positron-emission-tomography
#18
Didem Saygin, Kristin B Highland, Samar Farha, Margaret Park, Jacqueline Sharp, Emir Charles Roach, W H Wilson Tang, James D Thomas, Serpil C Erzurum, Donald R Neumann, Frank P DiFilippo
Pulmonary hypertension (PH) is associated with a metabolic shift towards glycolysis in both the right ventricle and lung. This results in increased glucose uptake to compensate for the lower energy yield of glycolysis, which creates a potential for 2-[18F] fluoro-2-deoxy-D-glucose (FDG) positron emission tomography (PET) to be a useful tool in the evaluation of participants with PH. We investigated the utility of PET for PH by comparing FDG-PET uptake in the right ventricle and lungs in 30 participants with PH and eight healthy controls and correlating these measurements with echocardiographic (ECHO) measurements and other traditional assessments commonly used in PH...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28591035/a-case-report-of-lymphoid-intestitial-pneumonia-in-common-variable-immunodeficiency-oligoclonal-expansion-of-effector-lymphocytes-with-preferential-cytomegalovirus-specific-immune-response-and-lymphoproliferative-disease-promotion
#19
Przemyslaw Zdziarski, Andrzej Gamian, Grzegorz Dworacki
RATIONALE: Lymphoid interstitial pneumonia (LIP) is a rare disease with lymphocytic infiltration of the alveolar interstitial and air spaces, sometimes classified as a clonal lymphoproliferative disease (LPD) with high prevalence in patients with immunodysregulation. Although association of mucosa-associated lymphoid tissue (MALT) lymphoma development with infectious agents has been well described, it is not so in the case of LIP. Attempts to demonstrate an infective cause by direct microbe detection have failed, but association with atypical specific immune response to opportunistic infectious agent has not been studied...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28589254/characterisation-of-malignant-peripheral-nerve-sheath-tumours-in-neurofibromatosis-1-using-heterogeneity-analysis-of-18-f-fdg-pet
#20
Gary J R Cook, Eitan Lovat, Muhammad Siddique, Vicky Goh, Rosalie Ferner, Victoria S Warbey
PURPOSE: Measurement of heterogeneity in (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography (PET) images is reported to improve tumour phenotyping and response assessment in a number of cancers. We aimed to determine whether measurements of (18)F-FDG heterogeneity could improve differentiation of benign symptomatic neurofibromas from malignant peripheral nerve sheath tumours (MPNSTs). METHODS: (18)F-FDG PET data from a cohort of 54 patients (24 female, 30 male, mean age 35...
June 7, 2017: European Journal of Nuclear Medicine and Molecular Imaging
keyword
keyword
117938
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"