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https://www.readbyqxmd.com/read/28938677/comparison-of-18-fdg-pet-pet-ct-and-bone-scintigraphy-for-detecting-bone-metastases-in-patients-with-nasopharyngeal-cancer-a-meta-analysis
#1
Chuanhui Xu, Ruiming Zhang, Huanlei Zhang, Zhenyan Zhang
OBJECTIVE: We performed a meta-analysis to compare the diagnostic efficacy of (18)FDG PET/PET-CT and bone scintigraphy (BS) for diagnosing bone metastatic cancers in nasopharyngeal cancer patients. RESULTS: 6 studies (1238 patients) fulfilled the inclusion criteria. The pooled sensitivities for (18)FDG PET/PET-CT and BS were 0.81 (95% confidence interval [CI] = 0.70 to 0.98) and 0.39 (95% CI = 0.26 to 0.54), specificities were 0.99 (95% CI = 0.98 to 0.99) and 0...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28937510/advancements-in-staging-and-imaging-for-penile-cancer
#2
Sarah R Ottenhof, Andrew R Leone, Simon Horenblas, Philippe E Spiess, Erik Vegt
PURPOSE OF REVIEW: We review recent advancements in staging and imaging of penile cancer, including surveillance after therapy. RECENT FINDINGS: For cN0 patients, the sentinel lymph node biopsy is currently considered the preferred way for invasive staging. It has largely replaced other modalities such as staging inguinal lymphadenectomy. Its diagnostic value increases when combined with other staging modalities such as ultrasound with fine-needle aspiration cytology (US-FNAC) or fluorodeoxyglucose-PET with computed tomography (PET/CT)...
September 20, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28936601/texture-analysis-of-high-resolution-dedicated-breast-18-f-fdg-pet-images-correlates-with-immunohistochemical-factors-and-subtype-of-breast-cancer
#3
Alexis Moscoso, Álvaro Ruibal, Inés Domínguez-Prado, Anxo Fernández-Ferreiro, Míchel Herranz, Luis Albaina, Sonia Argibay, Jesús Silva-Rodríguez, Juan Pardo-Montero, Pablo Aguiar
PURPOSE: This study aims to determine whether PET textural features measured with a new dedicated breast PET scanner reflect biological characteristics of breast tumors. METHODS: One hundred and thirty-nine breast tumors from 127 consecutive patients were included in this analysis. All of them underwent a (18)F-FDG PET scan before treatment. Well-known PET quantitative parameters such as SUV m a x , SUV m e a n , metabolically active tumor volume (MATV) and total lesion glycolysis (TLG) were extracted...
September 21, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28935898/pd-l1-is-an-activation-independent-marker-of-brown-adipocytes
#4
Jessica R Ingram, Michael Dougan, Mohammad Rashidian, Marko Knoll, Edmund J Keliher, Sarah Garrett, Scott Garforth, Olga S Blomberg, Camilo Espinosa, Atul Bhan, Steven C Almo, Ralph Weissleder, Harvey Lodish, Stephanie K Dougan, Hidde L Ploegh
Programmed death ligand 1 (PD-L1) is expressed on a number of immune and cancer cells, where it can downregulate antitumor immune responses. Its expression has been linked to metabolic changes in these cells. Here we develop a radiolabeled camelid single-domain antibody (anti-PD-L1 VHH) to track PD-L1 expression by immuno-positron emission tomography (PET). PET-CT imaging shows a robust and specific PD-L1 signal in brown adipose tissue (BAT). We confirm expression of PD-L1 on brown adipocytes and demonstrate that signal intensity does not change in response to cold exposure or β-adrenergic activation...
September 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28934176/positron-emission-tomographic-imaging-elucidates-the-complex-relationship-between-glucose-uptake-and-tissue-blood-flow-mechanism-in-squamous-cell-oral-cancer-patients
#5
Ping Xu, Yan Li, Shuyong Yang, Mingzhe Li, Chenjun Li
BACKGROUND Through the clinical use of positron emission tomography, we aimed to elucidate the complex relationship between glucose uptake and squamous cell oral cancer (ScOC) growth, along with its mechanism with respect to tissue blood flow (tBF). MATERIAL AND METHODS We retrospectively reviewed a total of 69 newly diagnosed ScOC patients by Fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography (PET). Maximum and mean standard uptake values (SUV↑ and SUV) were recorded to assess glucose uptake...
September 21, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28933270/11c-choline-pet-ct-based-helical-tomotherapy-as-treatment-approach-for-bone-metastases-in-recurrent-prostate-cancer-patients
#6
Elena Incerti, Vincenzo Gangemi, Paola Mapelli, Chiara Lucrezia Deantoni, Giampiero Giovacchini, Federico Fallanca, Andrei Fodor, Andrea Ciarmiello, Sergio Baldari, Luigi Gianolli, Nadia Di Muzio, Maria Picchio
To evaluate the efficacy of 11C-choline PET/CT (CHO-PET/CT) based helical tomotherapy (HTT) as a therapeutic approach for bone metastases in recurrent prostate cancer (PCa) patients. METHODS This retrospective study includes 20 PCa patients (median age: 67; range: 51-80 years) presenting biochemical relapse after primary treatment who underwent CHO-PET/CT based HTT on positive bone metastases from December 2007 to June 2014. The effectiveness of HTT assessed with biochemical response at 3/6/12 months, biochemical relapse free survival (bRFS) and overall survival (OS) at 2 years...
September 19, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28933018/-18-f-fluoromisonidazole-pet-in-rectal-cancer
#7
Tanuj Puri, Tessa A Greenhalgh, James M Wilson, Jamie Franklin, Lia Mun Wang, Victoria Strauss, Chris Cunningham, Mike Partridge, Tim Maughan
BACKGROUND: There is an increasing interest in developing predictive biomarkers of tissue hypoxia using functional imaging for personalised radiotherapy in patients with rectal cancer that are considered for neoadjuvant chemoradiotherapy (CRT). The study explores [(18)F]fluoromisonidazole ([(18)F]FMISO) positron emission tomography (PET) scans for predicting clinical response in rectal cancer patients receiving neoadjuvant CRT. METHODS: Patients with biopsy-proven rectal adenocarcinoma were imaged at 0-45 min, 2 and 4 h, at baseline and after 8-10 fractions of CRT (week 2)...
September 20, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28932562/standardized-uptake-value-and-radiological-density-attenuation-as-predictive-and-prognostic-factors-in-patients-with-solitary-pulmonary-nodules-our-experience-on-1-592-patients
#8
Duilio Divisi, Mirko Barone, Luca Bertolaccini, Gaetano Rocco, Piergiorgio Solli, Roberto Crisci
BACKGROUND: Multislice computed tomography (MSCT) increased detection of solitary pulmonary nodules (SPNs), changing the management based on radiological and clinical factors. When 18-fluorine fluorodeoxyglucose positron emission tomography combined with computed tomography ((18)F-FDG-PET/CT) was considered for the evaluation of nodules, the maximum standardized uptake value (SUVmax) more than 2.5 is used frequently as a cut off for malignancy. The purpose of this study is to evaluate SUVmax PET/CT and pulmonary attenuation patterns at MSCT in patients with SPN according to morphological and pathological characteristics of the lesion...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28932548/predictors-of-conversion-to-thoracotomy-during-video-assisted-thoracoscopic-surgery-lobectomy-in-lung-cancer-additional-predictive-value-of-fdg-pet-ct-in-a-tuberculosis-endemic-region
#9
Chun Geun Lim, Kyung Min Shin, Ji Seun Lim, Jae Kwang Lim, Hye Jung Kim, Won Hwa Kim, Seung Hyun Cho, Seung Ick Cha, Eung Bae Lee, Yangki Seock, Shin Young Jeong
BACKGROUND: To evaluate the added clinical value of (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) scans to chest CT imaging in predicting the conversion to thoracotomy during video-assisted thoracoscopic surgery (VATS) lobectomy in patients with lung cancer. METHODS: This is a retrospective study of 235 consecutive patients who underwent planned VATS lobectomy for primary lung cancer between 2011 and 2015. CT images were interpreted in terms of the presence and the attenuation of peribronchial lymph nodes (PLN) and peribronchial cuffs of soft (PCS) tissue, pleural calcification, and parenchymal calcified nodule...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28930979/analysis-of-18fdg-pet-ct-imaging-as-a-tool-for-studying-mycobacterium-tuberculosis-infection-and-treatment-in-non-human-primates
#10
Alexander G White, Pauline Maiello, M Teresa Coleman, Jaime A Tomko, L James Frye, Charles A Scanga, Philana Ling Lin, JoAnne L Flynn
Mycobacterium tuberculosis remains the number one infectious agent in the world today. With the emergence of antibiotic resistant strains, new clinically relevant methods are needed that evaluate the disease process and screen for potential antibiotic and vaccine treatments. Positron Emission Tomography/Computed Tomography (PET/CT) has been established as a valuable tool for studying a number of afflictions such as cancer, Alzheimer's disease, and inflammation/infection. Outlined here are a number of strategies that have been employed to evaluate PET/CT images in cynomolgus macaques that are infected intrabronchially with low doses of M...
September 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930828/18f-fdg-pet-ct-in-preoperative-staging-of-vulvar-cancer-patients-is-it-really-effective
#11
Cinzia Crivellaro, Priscilla Guglielmo, Elena De Ponti, Federica Elisei, Luca Guerra, Sonia Magni, Maria La Manna, Giampaolo Di Martino, Claudio Landoni, Alessandro Buda
The aim of this study was to assess the role of 18F-FDG PET/CT in preoperative staging of vulvar cancer patients.29 pts (69 years, range 51-88) with vulvar cancer (clinical apparent stage I-II), underwent preoperative FDG-PET/CT scan followed by radical vulvectomy and bilateral (or monolateral in case of tumor >2 cm from midline) inguinal lymphadenectomy ± sentinel node biopsy. PET/CT images were analyzed in consensus and correlated to histological findings according to a pt-based and a groin-based analyses...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28929810/dynamic-contrast-enhanced-perfusion-area-detector-ct-preliminary-comparison-of-diagnostic-performance-for-n-stage-assessment-with-fdg-pet-ct-in-non-small-cell-lung-cancer
#12
Yoshiharu Ohno, Yasuko Fujisawa, Naoki Sugihara, Yuji Kishida, Shinichiro Seki, Hisanobu Koyama, Takeshi Yoshikawa
OBJECTIVE: The objective of our study was to directly compare the capability of dynamic first-pass contrast-enhanced (CE) perfusion area-detector CT (ADCT) and FDG PET/CT for differentiation of metastatic from nonmetastatic lymph nodes and assessment of N stage in patients with non-small cell lung carcinoma (NSCLC). SUBJECTS AND METHODS: Seventy-seven consecutive patients, 45 men (mean age ± SD, 70.4 ± 5.9 years) and 32 women (71.2 ± 7.7 years), underwent dynamic first-pass CE-perfusion ADCT at two or three different positions for covering the entire thorax, FDG PET/CT, surgical treatment, and pathologic examination...
September 20, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28929350/optimal-mri-sequences-for-68-ga-psma-11-pet-mri-in-evaluation-of-biochemically-recurrent-prostate-cancer
#13
Spencer T Lake, Kirsten L Greene, Antonio C Westphalen, Spencer C Behr, Ronald Zagoria, Eric J Small, Peter R Carroll, Thomas A Hope
BACKGROUND: PET/MRI can be used for the detection of disease in biochemical recurrence (BCR) patients imaged with (68)Ga-PSMA-11 PET. This study was designed to determine the optimal MRI sequences to localize positive findings on (68)Ga-PSMA-11 PET of patients with BCR after definitive therapy. Fifty-five consecutive prostate cancer patients with BCR imaged with (68)Ga-PSMA-11 3.0T PET/MRI were retrospectively analyzed. Mean PSA was 7.9 ± 12.9 ng/ml, and mean PSA doubling time was 7...
September 19, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28927030/implementation-of-diffusion-weighted-magnetic-resonance-imaging-in-target-delineation-of-central-lung-cancer-accompanied-with-atelectasis-in-precision-radiotherapy
#14
Xinli Zhang, Zheng Fu, Guanzhong Gong, Hong Wei, Jinghao Duan, Zhaoqiu Chen, Xiangming Chen, Ruozheng Wang, Yong Yin
Radiotherapy, particularly the target delineation of cancer based on scanned images, plays a key role in the planning of cancer treatment. Recently, diffusion-weighted magnetic resonance imaging (DW-MRI) has emerged as a prospective superior procedure compared with intensified computed tomography (CT) and positron emission tomography (PET) in the target delineation of cancer. However, the implication of DW-MRI in lung cancer, the leading cause of cancer-associated mortality worldwide, has not been extensively evaluated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28925240/a-new-approach-for-advanced-gastric-cancer-using-pet-scans-as-a-biomarker-of-preoperative-chemotherapy-efficacy
#15
Manish Shah, Vivian E Strong, Judy C Boughey
No abstract text is available yet for this article.
February 2017: Bulletin of the American College of Surgeons
https://www.readbyqxmd.com/read/28924629/a-psma-ligand-labeled-with-cobalt-55-for-pet-imaging-of-prostate-cancer
#16
Johan Hygum Dam, Birgitte Brinkmann Olsen, Christina Baun, Poul Flemming Høilund-Carlsen, Helge Thisgaard
PURPOSE: Prostate-specific membrane antigen (PSMA) comprises a recognized target for molecular imaging of prostate cancer. As such, radiolabeled PSMA inhibitors are of great value for diagnosis and staging of this disease. Herein, we disclose the preclinical characterization of [(55)Co]PSMA-617 for positron emission tomography (PET)/x-ray computed tomography (CT) imaging of prostate cancer lesions. PROCEDURES: By the application of microwave heating, PSMA-617 in acetate buffer (0...
September 18, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28924531/efficacy-of-metabolically-supported-chemotherapy-combined-with-ketogenic-diet-hyperthermia-and-hyperbaric-oxygen-therapy-for-stage-iv-triple-negative-breast-cancer
#17
Mehmet Salih İyikesici, Abdul Kadir Slocum, Ayshe Slocum, Ferhan Bulent Berkarda, Miriam Kalamian, Thomas N Seyfried
Triple-negative breast cancer (TNBC) is more aggressive and metastatic than other breast cancer types. Cytotoxic chemotherapy is presently the predominant systemic therapy for TNBC patients. This case report highlights the influence of metabolically supported chemotherapy (MSCT), ketogenic diet (KD), hyperthermia (HT), and hyperbaric oxygen therapy (HBOT) in an overweight 29-year-old woman with stage IV (T4N3M1) triple-negative invasive ductal carcinoma of the breast. The patient presented with an observable mass in her left breast detected during a physical examination in December 2015...
July 7, 2017: Curēus
https://www.readbyqxmd.com/read/28922335/the-role-of-68ga-psma-i-t-pet-ct-in-the-pretreatment-staging-of-primary-prostate-cancer
#18
Danielle P Meyrick, Marcus Asokendaran, Laura A Skelly, Nat P Lenzo, Andrew Henderson
OBJECTIVES: This retrospective study aimed to evaluate the role of Ga-PSMA-I&T PET/CT in the primary staging of newly diagnosed prostate cancer (PCa), with a focus on the detection of metastatic nodal disease. Correlation of the rate of detection of metastatic disease by Ga-PSMA-I&T PET/CT with the Gleason score (GS) and serum prostate-specific antigen (PSA) was performed to determine the GS and PSA criteria defining patients who would benefit from Ga-PSMA-I&T PET/CT imaging for staging, risk stratification and therapy optimization...
September 15, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28922334/common-malignant-brain-tumors-can-18f-fdg-pet-ct-aid-in-differentiation
#19
Nilendu C Purandare, Ameya Puranik, Sneha Shah, Archi Agrawal, Tejpal Gupta, Aliasgar Moiyadi, Prakash Shetty, Epari Shridhar, Rakesh Jalali, Venkatesh Rangarajan
OBJECTIVES: The objectives of this study were to evalute the metabolic characteristics of common malignant space-occupying lesions (SOL) of the brain and to determine the utility of fluorine-18-fluorodeoxyglucose (F-FDG) PET/CT in differentiating between the common types of malignant brain SOL. PATIENTS AND METHODS: All patients with brain SOL who were referred for an F-FDG PET/CT scan by a multidisciplinary team were included in this retrospective study. The metabolic characteristics of the brain lesions in the form of maximum standardized uptake value (SUVmax) along with tumor-to-background activity ratios were determined and differences were compared using nonparametric statistical tests...
September 15, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28922285/what-where-and-why-exploring-fluorodeoxyglucose-pet-s-ability-to-localise-and-differentiate-infection-from-cancer
#20
Abby Douglas, Eddie Lau, Karin Thursky, Monica Slavin
PURPOSE OF REVIEW: To review the utility of FDG-PET imaging in detecting the cause of fever and infection in patients with cancer. RECENT FINDINGS: FDG-PET has been shown to have high sensitivity and accuracy for causes of neutropenic fever, leading to higher diagnostic certainty in this group. Recent advances in pathogen-specific labelling in PET to identify Aspergillus spp. and Yersinia spp. infections in mice, as well as differentiating between Gram-positive, Gram-negative and mycobacterial infections are promising...
September 15, 2017: Current Opinion in Infectious Diseases
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