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https://www.readbyqxmd.com/read/28534652/a-review-of-the-evidence-of-zolpidem-efficacy-in-neurological-disability-after-brain-damage-due-to-stroke-trauma-and-hypoxia-a-justification-of-further-clinical-trials
#1
J A Sutton, R P Clauss
During 15 years, 23 clinical reports and 6 studies have demonstrated associations between sub-sedative doses of zolpidem and recoveries from brain damage due to strokes, trauma and hypoxia. Clinical findings include unexpected awakenings from vegetative states and regressions of stroke symptoms after dosing that disappear during elimination and reappear on repeat dosing. Initially single-photon emission computed tomography scans showed improved perfusion within, around and distant from infarctions. Then positron emission tomography scans and electroencephalography detected renewed metabolic and neuronal activity...
May 23, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28534214/repeatability-of-68-ga-dkfz11-psma-pet-scans-for-detecting-prostate-specific-membrane-antigen-positive-prostate-cancer
#2
Joseph R Osborne, Teja M Kalidindi, Blesida J Punzalan, Kishore Gangangari, Daniel E Spratt, Wolfgang A Weber, Steven M Larson, Naga Vara Kishore Pillarsetty
PURPOSE: We studied the effect of varying specific activity of [(68)Ga]DKFZ-PSMA11 ([(68)Ga]DP11) on repeated imaging of prostate-specific membrane antigen-positive (PSMA+) xenograft tumors. PROCEDURES: Athymic nude mice bearing PC3-PIP (PSMA+) and PC3 (PSMA-) bilateral flank tumors were assessed to study intra- and inter-day repeatability of [(68)Ga]DP11 imaging in mice administered [(68)Ga]DP11 or [(67)Ga]DP11 (as a dilution tracer) using imaging and biodistribution studies...
May 22, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28534183/prognostic-importance-of-lymph-node-to-primary-tumor-standardized-uptake-value-ratio-in-invasive-squamous-cell-carcinoma-of-uterine-cervix
#3
Hyun Hoon Chung, Gi Jeong Cheon, Jae-Weon Kim, Noh-Hyun Park, Yong Sang Song
PURPOSE: Using integrated PET/CT, we evaluated the prognostic value of [(18)F]FDG uptake ratio between pelvic lymph node (LN) and primary tumor in invasive squamous cell carcinoma (SCCA) of the uterine cervix. METHODS: We retrospectively reviewed patients with International Federation of Gynecology and Obstetrics (FIGO) stages IB to IIA cervical SCCA who underwent preoperative [(18)F]FDG PET/CT scans. PET/CT parameters such as maximum standardized uptake value (SUV) of the primary cervical cancer (SUVcervix) and LN (SUVLN), and the LN-to-cervical cancer SUV ratio (SUVLN/SUVcervix) were assessed...
May 23, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28533652/peritoneal-super-scan-on-18-f-fdg-pet-ct-in-a-patient-of-burkitt-s-lymphoma
#4
Shambo Guha Roy, Girish Kumar Parida, Sarthak Tripathy, Abhinav Singhal, Shamim Ahmed Shamim, Madhavi Tripathi
Peritoneal lymphomatosis is seen less frequently, but when seen, it is mostly associated with aggressive variants of malignancies. FDG uptake has been reported in peritoneal lymphomatosis both in DLBCL and Burkitt's lymphoma. We report a case of Burkitt's lymphoma with involvement of entire peritoneum, which looks like a "peritoneal super scan" on FDG PET-CT.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533643/unsuspected-active-ulcerative-colitis-in-a-patient-with-dermatomyositis-a-rare-association-detected-on-18-f-fdg-pet-ct-during-the-search-for-an-occult-malignancy
#5
Sampanna Jung Rayamajhi, Arun Kumar Reddy Gorla, Rajender Kumar Basher, Ashwani Sood, Bhagwant Rai Mittal
Dermatomyositis is an inflammatory myopathy with the characteristic features of skin rash and myopathy. We here present a known case of dermatomyositis evaluated with (18)F-FDG PET/CT for the presence of any occult malignancy. The scan was negative for the presence of any malignancy. However, it revealed multiple intensely FDG avid colonic strictures that were later proven on colonoscopic biopsy to be ulcerative colitis. Also, a well-known association of bilateral sacroilitis was simultaneously demonstrated on the scan...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533640/fdg-pet-ct-need-for-vigilance-in-patients-treated-with-bleomycin
#6
Anna N Paschali, Gopinath Gnanasegaran, Gary J Cook
Bleomycin-induced interstitial lung disease is not a rare complication of treatment and may prove to be fatal if not suspected early in its course. As FDG PET-CT has become an essential clinical tool for interim and end-of-treatment response assessment in oncology, it is important that radiologists/nuclear medicine specialists be aware of the features of this potentially treatable condition so that treatment can be instigated during an early reversible phase before pulmonary damage has occurred. Herein, we report two cases of bleomycin toxicity featuring different patterns on the treatment-response assessment FDG PET-CT scan...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533639/metastatic-brachial-plexopathy-with-brain-and-spinal-metastasis-in-a-case-of-recurrent-breast-carcinoma-demonstrated-on-18-f-fdg-pet-ct
#7
Sunny J Gandhi, Bhavdeep Rabadiya
We report a case of a 56-year-old woman diagnosed with infiltrating ductal carcinoma of the left breast, who had undergone left modified radical mastectomy followed by radiotherapy and adjuvant chemotherapy. FDG PET-CT showed metastatic brachial plexopathy with intra-spinal and extra-axial brain metastasis. Metastatic brachial plexopathy along with brain and spinal metastasis is a rare condition with very less incidence. The scan also showed left para-sternal anterior chest wall recurrence with antero-superior mediastinal metastasis...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533638/clinical-utility-of-gallium-68-psma-pet-ct-scan-for-prostate-cancer
#8
Kumaraswamy G Kallur, Prashanth G Ramachandra, Krishnappa Rajkumar, Shivakumar S Swamy, Indiresh Desai, Raghavendra M Rao, Shekhar Gowda Patil, P S Sridhar, Nagaraj Madhusudhan, Raghunath S Krishnappa, Veerendra Bhadrasetty, Hemantha M Kumara, S D Santhosh, Basavalingaiah S Ajaikumar
BACKGROUND: Prostate cancer is biologically and clinically a heterogeneous disease that makes imaging evaluation challenging. One of the important challenges in this cancer is to detect recurrent disease. Biochemical response using Prostate Specific Antigen (PSA) and Imaging using several PET tracers have poor sensitivity and specificity. Therefore, we analyse the role of Ga68-PSMA (Prostate Specific Membrane Antigen) imaging in prostate cancer, which is a new PET tracer. METHODS: In this study, we evaluated PET scans of 262 patients with diagnosis of prostate cancer...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533637/development-and-validation-of-the-suprathreshold-stochastic-resonance-based-image-processing-method-for-the-detection-of-abdomino-pelvic-tumor-on-pet-ct-scans
#9
Kartik Saroha, Anil Kumar Pandey, Param Dev Sharma, Abhishek Behera, Chetan Patel, Chandrashekhar Bal, Rakesh Kumar
PURPOSE: The detection of abdomino-pelvic tumors embedded in or nearby radioactive urine containing 18F-FDG activity is a challenging task on PET/CT scan. In this study, we propose and validate the suprathreshold stochastic resonance-based image processing method for the detection of these tumors. METHODS: The method consists of the addition of noise to the input image, and then thresholding it that creates one frame of intermediate image. One hundred such frames were generated and averaged to get the final image...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28530533/respiratory-motion-management-in-pet-ct-applications-and-clinical-usefulness
#10
Luca Guerra, Elena De Ponti, Sabrina Morzenti, Chiara Spadavecchia, Cinzia Crivellaro
Although breathing movement can introduce heavy bias in both image quality and quantitation, currently there is lack of interest for the respiratory motion management in PET/CT imaging. The respiratory gating technology has shown significant benefits on image quality, reducing motion related artifacts and increasing quantification. Indeed, many papers have demonstrated that there is a consistent increase of the Standardized Uptake Value (SUV) in gated PET images when compared to ungated ones, particularly for the small lesions located both in liver and in lung...
May 19, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28529632/imaging-of-chemokine-receptor-4-expression-in-neuroendocrine-tumors-a-triple-tracer-comparative-approach
#11
Rudolf A Werner, Alexander Weich, Takahiro Higuchi, Jan S Schmid, Andreas Schirbel, Michael Lassmann, Vanessa Wild, Martina Rudelius, Theodor Kudlich, Ken Herrmann, Michael Scheurlen, Andreas K Buck, Saskia Kropf, Hans-Jürgen Wester, Constantin Lapa
C-X-C motif chemokine receptor 4 (CXCR4) and somatostatin receptors (SSTR) are overexpressed in gastro-entero-pancreatic neuroendocrine tumors (GEP-NET). In this study, we aimed to elucidate the feasibility of non-invasive CXCR4 positron emission tomography/computed tomography (PET/CT) imaging in GEP-NET patients using [(68)Ga]Pentixafor in comparison to (68)Ga-DOTA-D-Phe-Tyr3-octreotide ([(68)Ga]DOTATOC) and (18)F-fluorodeoxyglucose ([(18)F]FDG). Twelve patients with histologically proven GEP-NET (3xG1, 4xG2, 5xG3) underwent [(68)Ga]DOTATOC, [(18)F]FDG, and [(68)Ga]Pentixafor PET/CT for staging and planning of the therapeutic management...
2017: Theranostics
https://www.readbyqxmd.com/read/28529065/brown-adipose-tissue-and-lipid-metabolism-imaging
#12
REVIEW
Andreas Paulus, Wouter van Marken Lichtenbelt, Felix M Mottaghy, Matthias Bauwens
PURPOSE: Brown adipose tissue (BAT) research has evolved from an underestimated to a fast developing field. Its assumed curing properties for the world wide epidemic obesity, and its related diseases, makes this tissue an interesting target for a broad amount of non-invasive molecular BAT tracers. Apart from (18)F-FDG PET/CT there are several methods to detect BAT and measure its metabolism in a more appropriate way. Especially interesting is the measure of lipid turnover, because fatty acids comprise the main fuel for active BAT...
May 18, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28528264/baseline-and-longitudinal-variability-of-normal-tissue-uptake-values-of-18-f-fluorothymidine-pet-images
#13
Matthijs C F Cysouw, Gerbrand M Kramer, Virginie Frings, Adrianus J De Langen, Mariëlle J Wondergem, Laura M Kenny, Eric O Aboagye, Carsten Kobe, Jürgen Wolf, Otto S Hoekstra, Ronald Boellaard
PURPOSE: [(18)F]-fluorothymidine ([(18)F]-FLT) is a PET-tracer enabling in-vivo visualization and quantification of tumor cell proliferation. For qualitative and quantitative analysis, adequate knowledge of normal tissue uptake is indispensable. This study aimed to quantitatively investigate baseline tracer uptake of blood pool, lung, liver and bone marrow and their precision, and to assess the longitudinal effect of systemic treatment on biodistribution. METHODS: (18)F-FLT-PET(/CT) scans (dynamic or static) of 90 treatment-naïve oncological patients were retrospectively evaluated...
May 10, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28526044/clinical-outcomes-meta-analysis-measuring-subendocardial-perfusion-and-efficacy-of-transmyocardial-laser-revascularization-with-nuclear-imaging
#14
REVIEW
Jessika Iwanski, Shannon M Knapp, Ryan Avery, Isabel Oliva, Raymond K Wong, Raymond B Runyan, Zain Khalpey
INTRODUCTION: Randomized and nonrandomized clinical trials have tried to assess whether or not TMR patients experience an increase in myocardial perfusion. However there have been inconsistencies reported in the literature due to the use of different nuclear imaging modalities to test this metric. The primary purpose of this meta-analysis was to determine whether SPECT, MUGA and PET scans demonstrate changes in myocardial perfusion between lased and non-lased subjects and whether laser type affects myocardial perfusion...
May 19, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28524708/significance-of-baseline-fdg-pet-ct-scan-as-a-method-of-staging-regional-lymph-nodes-in-patients-with-operable-distal-oesophageal-or-gastroesophageal-junction-adenocarcinoma
#15
George Papaxoinis, Jamie M J Weaver, Leila Khoja, Ana Patrao, Sofia Stamatopoulou, Alia Alchawaf, Vikki Owen-Holt, Theodora Germetaki, Zoe Kordatou, Wasat Mansoor
BACKGROUND: The new American Joint Committee on Cancer eighth edition (AJCC8) staging is the first to describe separate clinical and pathology staging systems, but still has low performance to predict prognosis in patients with oesophageal/gastroesophageal junction (O/GOJ) adenocarcinoma, who are candidates for surgery. Recent studies have demonstrated that O/GOJ cancer patients with 18F-fluorodeoxyglucose (FDG) avid regional lymph nodes (RLNs) may have poor prognosis. The aim of our study was to examine whether the baseline assessment of the FDG uptake of RLN improves the prognostic accuracy of the new AJCC8 staging...
May 19, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28523582/first-in-human-radiation-dosimetry-of-68-ga-nodaga-rgdyk
#16
Silvano Gnesin, Periklis Mitsakis, Francesco Cicone, Emmanuel Deshayes, Vincent Dunet, Augusto F Gallino, Marek Kosinski, Sébastien Baechler, Franz Buchegger, David Viertl, John O Prior
BACKGROUND: Integrin-targeting radiopharmaceuticals have potential broad applications, spanning from cancer theranostics to cardiovascular diseases. We have previously reported preclinical dosimetry results of (68)Ga-NODAGA-RGDyK in mice. This study presents the first human dosimetry of (68)Ga-NODAGA-RGDyK in the five consecutive patients included in a clinical imaging protocol of carotid atherosclerotic plaques. Five male patients underwent whole-body time-of-flight (TOF) PET/CT scans 10, 60 and 120 min after tracer injection (200 MBq)...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28523180/primary-atypical-carcinoid-tumor-of-the-mediastinum-a-very-rare-finding
#17
Luigi Ventura, Letizia Gnetti, Enrico Maria Silini, Guido Rindi, Paolo Carbognani, Michele Rusca, Luca Ampollini
Primary neuroendocrine tumors (NETs) of the mediastinum are very rare. Prognosis is usually poor despite treatment options. We present the case of a primary atypical carcinoid tumor of the mediastinum successfully treated by multimodal approach. A 50-year-old man presented for asthenia, dyspnea, and substernal sense of weight for two weeks. A chest-CT scan revealed a tumor mass of 107×55×95 mm(3) localized in the anterosuperior mediastinum compressing both brachiocephalic veins, the superior vena cava, the pericardium, and lungs...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28523157/impact-of-maximum-standardized-uptake-value-of-non-small-cell-lung-cancer-on-detecting-lymph-node-involvement-in-potential-stereotactic-body-radiotherapy-candidates
#18
Shanyuan Zhang, Shaolei Li, Yuquan Pei, Miao Huang, Fangliang Lu, Qingfeng Zheng, Nan Li, Yue Yang
BACKGROUND: The retrospective study investigated the association between the maximum standardized uptake value (SUVmax) of primary tumor and lymph node involvement in potential stereotactic body radiotherapy (SBRT) candidates. METHODS: A total of 185 patients with clinical stage I NSCLC were enrolled in the current study. All patients underwent lobectomy with systematic lymph node dissection following preoperative FDG-PET/CT scanning. The association between clinicopathological variables and lymph node involvement was analyzed by univariate and multivariate analysis...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522744/fdg-pet-response-after-induction-chemotherapy-can-predict-who-will-benefit-from-subsequent-esophagectomy-after-chemoradiotherapy-for-esophageal-adenocarcinoma
#19
Mian Xi, Zhongxing Liao, Wayne L Hofstetter, Ritsuko Komaki, Linus Ho, Steven H Lin
This study aimed to determine whether (18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) response after induction chemotherapy before concurrent chemoradiotherapy can identify patients with esophageal adenocarcinoma who may benefit from subsequent esophagectomy. Methods: We identified and analyzed 220 patients with esophageal adenocarcinoma who had received induction chemotherapy before chemoradiotherapy, with or without surgery, with curative intent; all underwent FDG-PET scanning before and after induction chemotherapy...
May 18, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28522741/impact-of-ga-68-psma-11-pet-on-management-in-patients-with-biochemically-recurrent-prostate-cancer
#20
Thomas A Hope, Rahul Aggarwal, Bryant Chee, Dora Tao, Kirsten L Greene, Matthew Cooperberg, Felix Feng, Albert Chang, Charles J Ryan, Eric J Small, Peter R Carroll
Purpose: The purpose of this prospective study was to estimate the effect of (68)Ga-prostate specific membrane antigen (PSMA)-11 PET on intended management of patients with biochemically recurrent prostate cancer. Methods: Pre- and post-imaging surveys were filled out by referring providers in patients with biochemical recurrence who were imaged using (68)Ga-PSMA-11 PET. Inclusion criteria for this study required a PSA doubling time of less than 12 months after initial treatment (NCT02611882). Of the 150 consecutive patients imaged, 126 surveys were completed (84% response rate)...
May 18, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
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