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FDG PET and 99m Tc SPECT

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https://www.readbyqxmd.com/read/27879368/99mtc-duramycin-spect-imaging-of-early-tumor-response-to-targeted-therapy-a-comparison-with-18f-fdg-pet
#1
Filipe Elvas, Jan Boddaert, Christel Vangestel, Koon Pak, Brian Gray, Samir Kumar-Singh, Steven Staelens, Sigrid Stroobants, Leonie Wyffels
: Molecular imaging of cell death may provide a detailed readout of the cellular response to novel therapies and prognostic information on tumor treatment efficacy assisting in the design of individualized therapy. We compared the predictive power of cell death imaging using (99m)Tc-duramycin to current gold standard (18)F-FDG for treatment response evaluation after targeted therapy. METHODS: Early therapy response evaluation was assessed by (99m)Tc-duramycin SPECT and (18)F-FDG PET imaging in treatment-sensitive COLO205 and treatment-resistant HT29 human colorectal cancer xenografts 24 hours after a single dose of conatumumab or IgG1 control...
November 22, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/27479638/integrin-imaging-with-99m-tc-3prgd2-spect-ct-shows-high-specificity-in-the-diagnosis-of-lymph-node-metastasis-from-non-small-cell-lung-cancer
#2
Xiaona Jin, Naixin Liang, Mengzhao Wang, Yunxiao Meng, Bing Jia, Ximin Shi, Shanqing Li, Jinmei Luo, Yaping Luo, Quancai Cui, Kun Zheng, Zhaofei Liu, Jiyun Shi, Fang Li, Fan Wang, Zhaohui Zhu
Purpose To evaluate an integrin imaging approach based on single photon emission computed tomography (SPECT)/computed tomography (CT) by using technetium 99m ((99m)Tc)-dimeric cyclic arginine-glycine-aspartic acid (RGD) peptides with three polyethylene glycol spacers (3PRGD2) as the tracer to target the integrin αvβ3 expression in lung cancer and lymph node metastasis. Materials and Methods With ethics committee approval and written informed consent, 65 patients (41 male, 24 female; mean age, 60 years ± 11 [standard deviation]) with suspicious lung lesions were recruited with informed consent...
December 2016: Radiology
https://www.readbyqxmd.com/read/27408894/evaluation-of-simultaneous-dual-radioisotope-spect-imaging-using-18-f-fluorodeoxyglucose-and-99m-tc-tetrofosmin
#3
Yasuyuki Takahashi, Mizuki Mochiki, Keiko Koyama, Toshihiko Ino, Hiroyuki Yamaji, Atsuko Kawakami
OBJECTIVES: Use of a positron emission tomography (PET)/single-photon emission computed tomography (SPECT) system facilitates the simultaneous acquisition of images with fluorine-18 fluorodeoxyglucose ((18)F-FDG) and technetium ((99m)Tc)-tetrofosmin. However, (18)F has a short half-life, and 511 keV Compton-scattered photons are detected in the (99m)Tc energy window. Therefore, in this study, we aimed to investigate the consequences of these facts. METHODS: The crosstalk correction for images in the (99m)Tc energy window involved the dual energy window (DEW) subtraction method...
2016: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/27283041/identification-of-angiogenesis-rich-viable-myocardium-using-rgd-dimer-based-spect-after-myocardial-infarction
#4
Min Su Lee, Hyun Soo Park, Byung Chul Lee, Jae Ho Jung, Jung Sun Yoo, Sang Eun Kim
Cardiac healing after myocardial ischemia is a complex biological process. Advances in understanding of wound healing response have paved the way for clinical testing of novel molecular imaging to improve clinical outcomes. A key factor for assessing myocardial viability after ischemic injury is the evaluation of angiogenesis accompanying increased expression of integrin αvβ3. Here, we describe the capability of an αvβ3 integrin-targeting SPECT agent, (99m)Tc-IDA-D-[c(RGDfK)]2, for identification of ischemic but viable myocardium, i...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27237443/production-and-clinical-applications-of-radiopharmaceuticals-and-medical-radioisotopes-in-iran
#5
REVIEW
Amir Reza Jalilian, Davood Beiki, Arman Hassanzadeh-Rad, Arash Eftekhari, Parham Geramifar, Mohammad Eftekhari
During past 3 decades, nuclear medicine has flourished as vibrant and independent medical specialty in Iran. Since that time, more than 200 nuclear physicians have been trained and now practicing in nearly 158 centers throughout the country. In the same period, Tc-99m generators and variety of cold kits for conventional nuclear medicine were locally produced for the first time. Local production has continued to mature in robust manner while fulfilling international standards. To meet the ever-growing demand at the national level and with international achievements in mind, work for production of other Tc-99m-based peptides such as ubiquicidin, bombesin, octreotide, and more recently a kit formulation for Tc-99m TRODAT-1 for clinical use was introduced...
July 2016: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/27237437/current-status-of-nuclear-medicine-practice-in-the-middle-east
#6
REVIEW
Diana Paez, Tarik Becic, Uday Bhonsle, Amir R Jalilian, Rodolfo Nuñez-Miller, Joao Alberto Osso
The practice of nuclear medicine (NM) in the Middle East region has experienced an important growth in the last 2 decades and has become crucial in providing healthcare to the region's population of about 395 million people. Even though there are some countries in which the services provided are limited to basic coverage of studies with (99m)Tc and (131)I, most have well-established practices covering most of the available studies in this medical specialty; this is the case in for example, Iran, Israel, Kuwait, Saudi Arabia, and Turkey...
July 2016: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/27174865/hybrid-radioguided-occult-lesion-localization-hybrid-roll-of-18-f-fdg-avid-lesions-using-the-hybrid-tracer-indocyanine-green-99m-tc-nanocolloid
#7
G H KleinJan, O R Brouwer, H M Mathéron, D D D Rietbergen, R A Valdés Olmos, M W Wouters, N S van den Berg, F W B van Leeuwen
PURPOSE: To assess if combined fluorescence- and radio-guided occult lesion localization (hybrid ROLL) is feasible in patients scheduled for surgical resection of non-palpable (18)F-FDG-avid lesions on PET/CT. METHODS: Four patients with (18)F-FDG-avid lesions on follow-up PET/CT that were not palpable during physical examination but were suspected to harbor metastasis were enrolled. Guided by ultrasound, the hybrid tracer indocyanine green (ICG)-(99m)Tc-nanocolloid was injected centrally in the target lesion...
September 2016: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/27044712/development-of-radiodetection-systems-towards-miniaturised-quality-control-of-pet-and-spect-radiopharmaceuticals
#8
Matthew P Taggart, Mark D Tarn, Mohammad M N Esfahani, Daniel M Schofield, Nathaniel J Brown, Stephen J Archibald, Tom Deakin, Nicole Pamme, Lee F Thompson
The ability to detect radiation in microfluidic devices is important for the on-chip analysis of radiopharmaceuticals, but previously reported systems have largely suffered from various limitations including cost, complexity of fabrication, and insufficient sensitivity and/or speed. Here, we present the use of sensitive, low cost, small-sized, commercially available silicon photomultipliers (SiPMs) for the detection of radioactivity inside microfluidic channels fabricated from a range of conventional microfluidic chip substrates...
April 26, 2016: Lab on a Chip
https://www.readbyqxmd.com/read/26630973/multimodal-in-vivo-imaging-of-tumorigenesis-and-response-to-chemotherapy-in-a-transgenic-mouse-model-of-mammary-cancer
#9
Jean-Louis Alberini, Raphaël Boisgard, Stéphanie Guillermet, Karine Siquier, Benoît Jego, Benoît Thézé, Saik Urien, Keyvan Rezaï, Emmanuelle Menet, Renaud Maroy, Frédéric Dollé, Bertrand Kühnast, Bertrand Tavitian
PURPOSE: Transgenic mice expressing the polyoma middle T oncoprotein (PyMT) in the mammary epithelium were explored by multimodal imaging to monitor longitudinally spontaneous tumor growth and response to chemotherapy. PROCEDURES: Positron emission tomography (PET) with 2-deoxy-2-[(18)F]fluoro-D-glucose ([(18)F]FDG) and 3'-deoxy-3'-[(18)F]fluorothymidine ([(18)F]FLT), single photon emission tomography (SPECT) with [(99m)Tc]TcO4 ([(99m)Tc]TEC), X-ray computed tomography, and fluorescent confocal endomicroscopy (FCE) images were acquired during tumor progression in female PyMT mice...
August 2016: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/26514321/detection-of-bone-metastases-in-breast-cancer-patients-in-the-pet-ct-era-do-we-still-need-the-bone-scan
#10
M Caglar, O Kupik, E Karabulut, P F Høilund-Carlsen
AIM: To examine the value of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) for the detection of bone metastasis in breast cancer patients and assess whether whole body bone scan (BS) with (99m)Tc-methylene diphosphonate provides any additional information. MATERIAL AND METHODS: Study group comprised 150 patients, mean age 52 years (range 27-85) with breast cancer, suspected of having bone metastases. All patients had undergone both FDG-PET/CT and BS with or without single photon emission tomography/computed tomography (SPECT/CT) within a period of 6 weeks...
January 2016: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/26318991/technetium-glucose-complexes-as-potential-cancer-imaging-agents
#11
Rosina Dapueto, Rodrigo B Aguiar, María Moreno, Camila M L Machado, Fabio L N Marques, Juan P Gambini, Roger Chammas, Pablo Cabral, Williams Porcal
GLUT's (facilitative glucose transporters) over-expression in tumor cells has allowed the detection of several cancer types, using a glucose analogue ((18)F-FDG) with PET images, worldwide. New glucose analogs radiolabeled with (99m)Tc could be a less-expensive and more accessible alternative for diagnosis using SPECT imaging. d-Glucose ((99m)Tc-IDAG) and 2-d-deoxyglucose ((99m)Tc-AADG) organometallic complexes were proposed and studied as potential (18)F-FDG surrogates. The glucose complexes were prepared and evaluated as potential cancer imaging agents, in a melanoma tumor model...
October 1, 2015: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/26280202/adiposity-related-cancer-and-functional-imaging-of-brown-adipose-tissue
#12
REVIEW
Prasanna Santhanam, Lilja Solnes, Jarna C Hannukainen, David Taïeb
OBJECTIVE: Brown adipose tissue (BAT) is involved in energy dissipation and cytokine production and is potentially beneficial for the human body. The aim of the paper is to review the literature on adiposity-related cancer and functional imaging of BAT. METHODS: We performed a review on adiposity-related cancer and functional imaging of BAT. We extensively researched papers for information on BAT molecular biology, as well as functional imaging modalities. RESULTS: Adipose tissue is linked to the development of many cancers...
November 2015: Endocrine Practice
https://www.readbyqxmd.com/read/26278850/pitfalls-and-limitations-of-radionuclide-planar-and-hybrid-bone-imaging
#13
REVIEW
Kanhaiyalal Agrawal, Fahad Marafi, Gopinath Gnanasegaran, Hans Van der Wall, Ignac Fogelman
The radionuclide (99m)Tc-MDP bone scan is one of the most commonly performed nuclear medicine studies and helps in the diagnosis of different pathologies relating to the musculoskeletal system. With its increasing utility in clinical practice, it becomes more important to be aware of various limitations of this imaging modality to avoid false interpretation. It is necessary to be able to recognize various technical, radiopharmaceutical, and patient-related artifacts that can occur while carrying out a bone scan...
September 2015: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/26259316/tc-99m-sestamibi-scanning-in-multiple-myeloma-a-new-look-with-spect-ct
#14
Karuna Luthra, Abhay Bhave, R D Lele
UNLABELLED: A variety of diagnostic tools including biochemistry, radiological imaging bone marrow studies and recently metabolic imaging with FDG PET are used for assessment of disease extent in myeloma. AIM: To evaluate the role of metabolic imaging with Tc99m Sestamibi (Mibi) SPECT-CT in Multiple myeloma. MATERIALS AND METHODS: Patients in various stages of Myeloma were scanned after 20mCi Tc99m Sestamibi was injected i/v. Whole body planar scans were obtained with a dual head gamma camera and SPECT-CT imaging was done...
September 2014: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/26118354/perfusion-spect-siscom-and-pet-18-f-fdg-in-the-assessment-of-drug-refractory-epilepsy-patients-candidates-for-epilepsy-surgery
#15
M Suárez-Piñera, A Mestre-Fusco, M Ley, S González, S Medrano, A Principe, S Mojal, G Conesa, R Rocamora
AIMS: Brain perfusion SPECT (ictal-interictal), SPECT images and subtraction ictal SPECT coregistered to MRI (SISCOM) and (18)F-FDG-PET (interictal), play an important role in the pre-surgical diagnosis of patients with medically refractory epilepsy. This study aimed to establish: the reproducibility of visual ictal-interictal SPECT and SISCOM analysis altogether with the capacity of SPECT, SISCOM and PET to determine the epileptogenic zone. MATERIAL AND METHODS: (99m)Tc-HMPAO SPECT ictal-interictal and SISCOM (Analyze 7...
November 2015: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/25973338/comparison-of-autologous-111-in-leukocytes-18-f-fdg-11-c-methionine-11-c-pk11195-and-68-ga-citrate-for-diagnostic-nuclear-imaging-in-a-juvenile-porcine-haematogenous-staphylococcus-aureus-osteomyelitis-model
#16
Ole L Nielsen, Pia Afzelius, Dirk Bender, Henrik C Schønheyder, Páll S Leifsson, Karin M Nielsen, Jytte O Larsen, Svend B Jensen, Aage Ko Alstrup
The aim of this study was to compare (111)In-labeled leukocyte single-photon emission computed tomography (SPECT) and (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography (PET) to PET with tracers that potentially could improve detection of osteomyelitis. We chose (11)C-methionine, (11)C-PK11195 and (68)Ga-citrate and validated their diagnostic utility in a porcine haematogenous osteomyelitis model. Four juvenile 14-15 weeks old female pigs were scanned seven days after intra-arterial inoculation in the right femoral artery with a porcine strain of Staphylococcus aureus using a sequential scan protocol with (18)F-FDG, (68)Ga-citrate, (11)C-methionine, (11)C-PK11195, (99m)Tc-Nanocoll and (111)In-labelled autologous leukocytes...
2015: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/25894057/erratum-to-the-impacts-of-severe-perfusion-defects-akinetic-dyskinetic-segments-and-viable-myocardium-on-the-accuracy-of-volumes-and-lvef-measured-by-gated-99m-tc-mibi-spect-and-gated-18-f-fdg-pet-in-patients-with-left-ventricular-aneurysm-cardiac-magnetic
#17
Hongxing Wei, Congna Tian, Thomas H Schindler, Mei Qiu, Minjie Lu, Rui Shen, Yueqin Tian, Shi-Hua Zhao, Xiaoli Zhang
No abstract text is available yet for this article.
August 2015: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/25818793/-comparative-analysis-of-integrated-99m-tc-mibi-spect-localizable-ct-and-integrated-%C3%A2-%C3%A2-f-fdg-pet-ct-for-differential-diagnosis-of-solitary-pulmonary-nodules
#18
COMPARATIVE STUDY
Zhiyong Deng, Gaofeng Li, Xudong Xiang, Li Jia, Chao Liu, Ting Chen, Changjiang Liu
OBJECTIVE: To compare the diagnostic value of ⁹⁹Tc(m)-MIBI SPECT/localizable CT and ¹⁸FDG-PET/CT in patients with indeterminate solitary pulmonary nodules (SPNs) and assess the feasibility of using ⁹⁹Tc(m)-MIBI SPECT/localizable CT as an alternative when ¹⁸FDG-PET/CT is not available. METHODS: Thirty-nine patients with indeterminate SPNs were examined by ⁹⁹Tc(m)-MIBI SPECT/localizable CT, and another 46 patients by ¹⁸FDG-PET/CT. The findings of the two modalities were analyzed qualitatively and semiquantitatively to assess their efficacy for a definitive diagnosis of SNPs...
March 2015: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/25791989/in-vitro-and-in-vivo-application-of-radiolabeled-gastrin-releasing-peptide-receptor-ligands-in-breast-cancer
#19
Simone U Dalm, John W M Martens, Anieta M Sieuwerts, Carolien H M van Deurzen, Stuart J Koelewijn, Erik de Blois, Theodosia Maina, Berthold A Nock, Luc Brunel, Jean-Alain Fehrentz, Jean Martinez, Marion de Jong, Marleen Melis
UNLABELLED: Breast cancer (BC) consists of multiple subtypes defined by various molecular characteristics, for instance, estrogen receptor (ER) expression. Methods for visualizing BC include mammography, MR imaging, ultrasound, and nuclear medicine-based methods such as (99m)Tc-sestamibi and (18)F-FDG PET, unfortunately all lacking specificity. Peptide receptor scintigraphy and peptide receptor radionuclide therapy are successfully applied for imaging and therapy of somatostatin receptor-expressing neuroendocrine tumors using somatostatin receptor radioligands...
May 2015: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/25771906/nuclear-imaging-of-neuroendocrine-tumors-with-unknown-primary-why-when-and-how
#20
REVIEW
Prasanna Santhanam, Sangeeta Chandramahanti, Alexander Kroiss, Run Yu, Philippe Ruszniewski, Rakesh Kumar, David Taïeb
Neuroendocrine tumors (NETs) with unknown primary (CUP-NET) are associated with a poor prognosis (10-year survival 22%), grade 1 and 2 NETs having a more favorable outcome than grade 3 (also called carcinoma). There is evidence that an effort should be made to localize the primary tumor even in the presence of metastasis because resection of the primary tumor(s) may improve disease-free and overall survival, and because the choice of chemotherapeutic agent depends on the location of the primary tumor. Localization of the tumors remains challenging and often relies on a combination of radiological, endoscopic and functional imaging...
June 2015: European Journal of Nuclear Medicine and Molecular Imaging
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