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https://www.readbyqxmd.com/read/29144823/the-relationship-of-braf-v600e-mutation-status-to-fdg-pet-ct-avidity-in-thyroid-cancer-a-review-and-meta-analysis
#1
Prasanna Santhanam, Rodhan Khthir, Lilja B Solnes, Paul W Ladenson
OBJECTIVES: Papillary thyroid cancers harboring BRAF (V600E) gene mutation have been shown to exhibit aggressive tumor behaviors and higher risks of recurrence and disease-specific death. In this systematic review and meta-analysis, we examine and report published evidence related to the accuracy of FDG-PET-CT in detection of residual disease in patients' with BRAF (V600E) mutated thyroid cancer. METHODS: We extracted data from PUBMED/MEDLINE and EMBASE from January, 1995 to March, 2017...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29138384/-a-case-of-biopsy-confirmed-unresectable-retroperitoneal-seminoma-successfully-treated-with-chemotherapy
#2
Tohru Takahashi, Takuya Kato, Tatsuzo Mizukami, Takanori Ohata, Taku Hashimoto, Hironori Abe
We herein report a case of a retroperitoneal tumor of unknown origin that was diagnosed as a seminoma after tumor biopsy and was successfully treated with chemotherapy containing bleomycin, etoposide, and cisplatin(BEP). A 47-year old man visited our hospital with left abdominal pain. An endoscopic examination revealed an ulcer lesion on the third part of the duodenum. Abdominal CT scan revealed a retroperitoneal tumor invading the abdominal aorta with the tumor thrombus in the inferior vena cava(IVC). An endoscopic biopsy could not identify the tumor's origin because of the negative staining of various surface markers on immunohistochemistry...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29137104/tumor-and-bone-marrow-uptakes-on-18f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-predict-prognosis-in-patients-with-diffuse-large-b-cell-lymphoma-receiving-rituximab-containing-chemotherapy
#3
Chin-Chuan Chang, Shih-Feng Cho, Hung-Pin Tu, Chia-Yang Lin, Ya-Wen Chuang, Shu-Min Chang, Wen-Ling Hsu, Ying-Fong Huang
The purpose of this study was to determine the relevance of standardized uptake value (SUV) on [F]fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT), focusing on tumor and bone marrow, to disease outcomes based on progression-free survival (PFS) and overall survival (OS) in patients with diffuse large B-cell lymphoma (DLBCL) receiving rituximab-containing chemotherapy.We reviewed the records of patients with DLBCL who were diagnosed between September 2009 and January 2013 and underwent pretreatment whole-body FDG PET/CT scans...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137072/volume-based-metabolic-parameter-of-breast-cancer-on-preoperative-18f-fdg-pet-ct-could-predict-axillary-lymph-node-metastasis
#4
Young-Sil An, Doo Kyoung Kang, Yongsik Jung, Tae Hee Kim
The purpose of our study was to evaluate the association between metabolic parameters on FDG PET/CT and axillary lymph node metastasis (ALNM) in patients with invasive breast cancer.From January 2012 to December 2012, we analyzed 173 patients with invasive ductal carcinoma (IDC) who underwent both initial breast magnetic resonance imaging (MRI) and F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) examinations. All metabolic parameters were measured from the tumor volume segmented by a gradient-based method...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29134565/prognostic-value-of-fdg-pet-and-dwi-in-breast-cancer
#5
Kazuhiro Kitajima, Yasuo Miyoshi, Toshiko Yamano, Soichi Odawara, Tomoko Higuchi, Koichiro Yamakado
OBJECTIVE: To investigate the prognostic value of preoperative FDG-PET/CT and diffusion weighted imaging (DWI) in patients with breast cancer. METHODS: A total of 73 patients with newly diagnosed invasive breast cancer who had undergone preoperative whole-body FDG-PET/CT and 3-Tesla breast MRI including DWI followed by surgery were identified. Effects of primary tumor PET parameters [maximum standardized uptake value (SUVmax), mean SUV (SUVmean), metabolic tumor volume (MTV), and total lesion glycolysis (TLG)] and DWI parameters [mean apparent diffusion coefficient (ADCmean) and minimum ADC (ADCmin)] including clinicopathologic factors on disease-free survival (DFS) were retrospectively evaluated using the log-rank and Cox methods...
November 13, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29131857/internal-tissue-references-for-18fluorodeoxyglucose-vascular-inflammation-imaging-implications-for-cardiovascular-risk-stratification-and-clinical-trials
#6
Mark A Ahlman, Davis M Vigneault, Veit Sandfort, Roberto Maass-Moreno, Jenny Dave, Ahmed Sadek, Marissa B Mallek, Mariana A F Selwaness, Peter Herscovitch, Nehal N Mehta, David A Bluemke
INTRODUCTION: 18Fluorodeoxyglucose (FDG) positron emission tomography (PET) uptake in the artery wall correlates with active inflammation. However, in part due to the low spatial resolution of PET, variation in the apparent arterial wall signal may be influenced by variation in blood FDG activity that cannot be fully corrected for using typical normalization strategies. The purpose of this study was to evaluate the ability of the current common methods to normalize for blood activity and to investigate alternative methods for more accurate quantification of vascular inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/29127247/novel-method-to-detect-and-characterize-f-18-fdg-infiltrations-in-pet-injections-a-single-institution-experience
#7
Razi Muzaffar, Sarah A Frye, Anna Mcmunn, Kelley Ryan, Ron Lattanze, Medhat M Osman
Purpose: A novel Quality Assurance/Quality Control (QA/QC) device provides Time Activity Curves (TACs) which can identify and characterize PET/CT radiotracer infiltrations during the uptake phase. The purpose of this study was to compare rates of infiltration detected by the device compared to standard PET image infiltration rates. We also aimed to assess the value of using the device to improve injection results in our center. Methods: 109 subjects were consented to the study. All subjects had passive device sensors applied to their skin near the injection site and mirrored on the contralateral arm during the entire uptake period...
November 10, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/29126277/-18f-fdg-positron-emission-tomography-in-patients-presenting-with-suspicion-of-giant-cell-arteritis-lessons-from-a-vasculitis-clinic
#8
Stephan Imfeld, Christof Rottenburger, Elke Schegk, Markus Aschwanden, Freimut Juengling, Daniel Staub, Mike Recher, Diego Kyburz, Christoph T Berger, Thomas Daikeler
Aims: The usefulness of [18F] fluorodeoxyglucose-positron emission tomography/computed tomography ([18F]FDG-PET/CT) for diagnosing giant cell arteritis (GCA) has been previously reported. Yet, the interpretation of PET scans is not clear-cut. The present study aimed at determining the best method to analyse PET/CT in a large, real-life cohort of patients presenting with suspicion of GCA. Methods and results: One hundred and three patients with clinical suspicion of GCA undergoing PET/CT between 2006 and 2012 were included...
November 8, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29124281/absolute-number-of-new-lesions-on-18-f-fdg-pet-ct-is-more-predictive-of-clinical-response-than-suv-changes-in-metastatic-melanoma-patients-receiving-ipilimumab
#9
Hoda Anwar, Christos Sachpekidis, Julia Winkler, Annette Kopp-Schneider, Uwe Haberkorn, Jessica C Hassel, Antonia Dimitrakopoulou-Strauss
PURPOSE: Evaluation of response to immunotherapy is a matter of debate. The aim of the present study was to evaluate the response of metastatic melanoma to treatment with ipilimumab by means of (18)F-FDG PET/CT, using the patients' clinical response as reference. METHODS: The final cohort included in the analyses consisted of 41 patients with metastatic melanoma who underwent (18)F-FDG PET/CT before and after administration of ipilimumab. After determination of the best clinical response, the PET/CT scans were reviewed and a separate independent analysis was performed, based on the number and functional size of newly emerged (18)F-FDG-avid lesions, as well as on the SUV changes after therapy...
November 10, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29124280/-18-f-fluorodeoxyglucose-uptake-of-hepatocellular-carcinoma-as-a-prognostic-predictor-in-patients-with-sorafenib-treatment
#10
Pil Soo Sung, Hye Lim Park, Keungmo Yang, Seawon Hwang, Myeong Jun Song, Jeong Won Jang, Jong Young Choi, Seung Kew Yoon, Ie Ryung Yoo, Si Hyun Bae
PURPOSE: Sorafenib, an oral multikinase inhibitor, is a recommended treatment option available for patients with Barcelona Clinic Liver Cancer (BCLC)-C stage hepatocellular carcinoma (HCC). This study aimed to evaluate the performance of (18)F-fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) for predicting tumour progression during sorafenib treatment. METHODS: We formed a retrospective cohort comprising patients treated with sorafenib for at least 30 days and undergoing (18)F-FDG PET/CT within 1 month before treatment...
November 10, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29123014/positron-emission-tomography-using-a-grpr-antagonist-68-ga-rm26-in-healthy-volunteers-and-prostate-cancer-patients
#11
Jingjing Zhang, Gang Niu, Xingrong Fan, Lixin Lang, Guozhu Hou, Libo Chen, Huanwen Wu, Zhaohui Zhu, Fang Li, Xiaoyuan Chen
This study was designed to study the safety, biodistribution, radiation dosimetry of a gastrin-releasing peptide receptor (GRPR) antagonist positron emission tomography (PET) tracer (68)Ga-RM26, to assess its clinical diagnostic value in prostate cancer patients, and to perform a direct comparison between GRPR antagonist (68)Ga-RM26 and agonist (68)Ga-BBN. Methods: Five healthy volunteers were enrolled to validate the safety of (68)Ga-RM26 and calculate dosimetry. A total of 28 patients with prostate cancer (17 newly diagnosed and 11 post therapy) were recruited with written informed consent...
November 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29123008/reproducibility-of-mr-based-attenuation-maps-in-pet-mri-and-the-impact-on-pet-quantification-in-lung-cancer
#12
Anders Olin, Claes N Ladefoged, Natasha H Langer, Sune H Keller, Johan O Löfgren, Adam E Hansen, Andreas Kjær, Seppo W Langer, Barbara M Fischer, Flemming L Andersen
AIM: Quantitative positron emission tomography/magnetic resonance imaging (PET/MRI) is dependent upon reliable and reproducible MR-based attenuation correction (MR-AC). In this study we evaluated the quality of current vendor-provided thoracic MR-AC maps, and further investigated the reproducibility of these in terms of their impact on fluorodeoxyglucose (FDG)-PET quantification in patients with non-small cell lung cancer (NSCLC). MATERIAL AND METHODS: Eleven patients with inoperable NSCLC underwent two to five thoracic PET/MRI scan-rescan examinations within 22 days...
November 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29120905/fluorine-18-fluorodeoxyglucose-uptake-of-bone-marrow-on-pet-ct-can-predict-prognosis-in-patients-with-colorectal-cancer-after-curative-surgical-resection
#13
Jeong Won Lee, Moo-Jun Baek, Tae Sung Ahn, Sang Mi Lee
OBJECTIVE: This study investigated the relationship of fluorine-18-fluorodeoxyglucose (F-FDG) uptake of bone marrow (BM) on PET/computed tomography (PET/CT) with clinicopathologic factors and survival in patients with colorectal cancer. PATIENTS AND METHODS: The study retrospectively included 226 patients with colorectal cancer who underwent F-FDG PET/CT for staging workup and treated with curative surgical resection. The maximum F-FDG uptake of primary cancer (Tmax) and mean F-FDG uptake of BM [BM standardized uptake value (SUV)] were derived from PET/CT images...
November 8, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29115970/comparison-of-68-ga-psma-11-pet-ct-with-mpmri-for-preoperative-lymph-node-staging-in-patients-with-intermediate-to-high-risk-prostate-cancer
#14
Qing Zhang, Shiming Zang, Chengwei Zhang, Yao Fu, Xiaoyu Lv, Qinglei Zhang, Yongming Deng, Chuan Zhang, Rui Luo, Xiaozhi Zhao, Wei Wang, Feng Wang, Hongqian Guo
BACKGROUND: To evaluate the diagnostic value of (68)Ga-PSMA-11 PET-CT with multiparametric magnetic resonance imaging (mpMRI) for lymph node (LN) staging in patients with intermediate- to high-risk prostate cancer (PCa) undergoing radical prostatectomy (RP) with pelvic lymph node dissection (PLND). METHODS: We retrospectively identified 42 consecutive patients with intermediate- to high-risk PCa according to D'Amico and without concomitant cancer. Preoperative (68)Ga-PSMA-11 PET-CT, pelvic mpMRI and subsequent robot assisted laparoscopic RP with PLND were performed in all patients...
November 7, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29112065/the-effects-of-hiv-and-smoking-on-aortic-and-splenic-inflammation
#15
Chris T Longenecker, Claire E Sullivan, Justin Morrison, Corrilynn O Hileman, David A Zidar, Robert Gilkeson, James O'Donnell, Grace A McComsey
OBJECTIVE: To determine the association of smoking and HIV status with tissue specific inflammation measured by flurodeoxyglucose positron emission tomography (FDG-PET). DESIGN: Cross-sectional. METHODS: We prospectively enrolled 55 HIV+ subjects on stable antiretroviral therapy and 19 age-matched HIV-uninfected controls without known CVD. We measured aortic target-to-background ratio (TBR) and spleen standardized uptake values (SUV) three hours post-FDG, and used regression models to examine the independent association of HIV and smoking status with PET variables...
November 2, 2017: AIDS
https://www.readbyqxmd.com/read/29112011/role-of-various-metabolic-parameters-derived-from-baseline-18f-fdg-pet-ct-as-prognostic-markers-in-non-small-cell-lung-cancer-patients-undergoing-platinum-based-chemotherapy
#16
Akshima Sharma, Anant Mohan, Ashu Seith Bhalla, Mehar Chand Sharma, Sreenivas Vishnubhatla, Chandan J Das, Anil Kumar Pandey, Chandra Sekhar Bal, Chetan D Patel, Punit Sharma, Krishan Kant Agarwal, Rakesh Kumar
PURPOSE: The aim of this study was to prospectively evaluate the role of various quantitative and semiquantitative metabolic parameters derived from dynamic and static baseline F-FDG PET/CT in prediction of overall survival (OS) in non-small cell lung cancer (NSCLC) patients who were planned to undergo platinum-based chemotherapy. METHODS: Sixty patients (51 male and 9 female patients) with biopsy-proven NSCLC and mean age 59.55 ± 10.06 years who were planned to undergo platinum-based chemotherapy were enrolled in the study...
November 3, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29110648/prospective-study-of-11-c-methionine-pet-for-distinguishing-between-recurrent-brain-metastases-and-radiation-necrosis-%C3%A2-limitations-of-diagnostic-accuracy-and-long-term-results-of-salvage-treatment
#17
Shoji Yomo, Kazuhiro Oguchi
BACKGROUND: On conventional diagnostic imaging, the features of radiation necrosis (RN) are similar to those of local recurrence (LR) of brain metastases (BM). (11)C-methionine positron emission tomography (MET-PET) is reportedly useful for making a differential diagnosis between LR and RN. In this prospective study, we aimed to investigate the diagnostic performance of MET-PET and the long-term results of subsequent patient management. METHODS: The eligible subjects had enlarging contrast-enhanced lesions (>1 cm) on MR imaging after any form of radiotherapy for BM, suggesting LR or RN...
November 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29103469/improved-clinical-workflow-for-simultaneous-whole-body-pet-mri-using-high-resolution-caipirinha-accelerated-mr-based-attenuation-correction
#18
Martin T Freitag, Matthias Fenchel, Philipp Bäumer, Thorsten Heußer, Christopher M Rank, Marc Kachelrieß, Daniel Paech, Klaus Kopka, Sebastian Bickelhaupt, Antonia Dimitrakopoulou-Strauss, Klaus Maier-Hein, Ralf Floca, Mark E Ladd, Heinz-Peter Schlemmer, Florian Maier
PURPOSE: To explore the value and reproducibility of a novel magnetic resonance based attenuation correction (MRAC) using a CAIPIRINHA-accelerated T1-weighted Dixon 3D-VIBE sequence for whole-body PET/MRI compared to the clinical standard. METHODS: The PET raw data of 19 patients from clinical routine were reconstructed with standard MRAC (MRACstd) and the novel MRAC (MRACcaipi), a prototype CAIPIRINHA accelerated Dixon 3D-VIBE sequence, both acquired in 19 s/bed position...
November 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29102649/predictive-and-prognostic-potential-of-volume-based-metabolic-variables-obtained-by-a-baseline-18-f-fdg-pet-ct-in-breast-cancer-with-neoadjuvant-chemotherapy-indication
#19
A M Garcia-Vicente, J Pérez-Beteta, M Amo-Salas, D Molina, G A Jimenez-Londoño, A M Soriano-Castrejón, F J Pena Pardo, A Martínez-González
AIM: To investigate the usefulness of metabolic variables using (18)F-FDG PET/CT in the prediction of neoadjuvant chemotherapy (NC) response and the prognosis in locally advanced breast cancer (LABC). MATERIALS AND METHODS: Prospective study including 67 patients with LABC, NC indication and a baseline (18)F-FDG PET/CT. After breast tumor segmentation, SUV variables (SUVmax, SUVmean and SUVpeak) and volume-based variables, such as metabolic tumor volume (MTV) and total lesion glycolysis (TLG), were obtained...
November 1, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/29101869/mesoporous-silica-for-drug-delivery-interactions-with-model-fluorescent-lipid-vesicles-and-live-cells
#20
Munmun Bardhan, Anupa Majumdar, Sayantan Jana, Tapas Ghosh, Uttam Pal, Snehasikta Swarnakar, Dulal Senapati
Formulated mesoporous silica nanoparticle (MSN) systems offer the best possible drug delivery system through the release of drug molecules from the accessible pores. In the present investigation, steady state and time resolved fluorescence techniques along with the fluorescence imaging were applied to investigate the interactions of dye loaded MSN with fluorescent unilamellar vesicles and live cells. Here 1,2-dimyristoyl-sn-glycero-3-phospocholine (DMPC) was used to prepare Small Unilamellar Vesicles (SUVs) as the model membrane with fluorescent 1,6-diphenyl-1,3,5-hexatriene (DPH) molecule incorporated inside the lipid bilayer...
November 1, 2017: Journal of Photochemistry and Photobiology. B, Biology
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