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https://www.readbyqxmd.com/read/28221194/multiple-time-point-68-ga-psma-i-t-pet-ct-for-characterization-of-primary-prostate-cancer-value-of-early-dynamic-and-delayed-imaging
#1
Sebastian Schmuck, Martin Mamach, Florian Wilke, Christoph A von Klot, Christoph Henkenberens, James T Thackeray, Jan M Sohns, Lilli Geworski, Tobias L Ross, Hans-Juergen Wester, Hans Christiansen, Frank M Bengel, Thorsten Derlin
PURPOSE: The aims of this study were to gain mechanistic insights into prostate cancer biology using dynamic imaging and to evaluate the usefulness of multiple time-point Ga-prostate-specific membrane antigen (PSMA) I&T PET/CT for the assessment of primary prostate cancer before prostatectomy. METHODS: Twenty patients with prostate cancer underwent Ga-PSMA I&T PET/CT before prostatectomy. The PET protocol consisted of early dynamic pelvic imaging, followed by static scans at 60 and 180 minutes postinjection (p...
February 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28217987/radiolabelled-psma-small-molecule-inhibitors
#2
Leon Will, Ida Sonni, Klaus Kopka, Clemens Kratochwil, Frederik L Giesel, Uwe Haberkorn
INTRODUCTION: Prostate cancer (PC) is one of the most common malignancies worldwide. Prostate-specific membrane antigen (PSMA) has been found to be expressed in most PCs and represents an ideal target for radiolabeling with diagnostic and therapeutic purposes. Numerous PSMA-tracers have been recently developed. This systematic review aims to provide an overview on the clinical influence of PSMA-tracers in primary staging, biochemical recurrence (BCR) of PC and advanced, metastatic PC...
February 17, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28217012/-68-ga-prostate-specific-membrane-antigen-positron-emission-tomography-computed-tomography-for-prostate-cancer-imaging-a-narrative-literature-review
#3
REVIEW
Jose M Oliveira, Catarina Gomes, Diogo B Faria, Tiago S Vieira, Fernando A Silva, Joana Vale, Francisco L Pimentel
The (68)Ga-prostate-specific membrane antigen ( (68)Ga-PSMA) has been recently developed to be used, as a ligand, in positron emission tomography/computed tomography (PET/CT) prostate cancer imaging, to detect prostate disease. The main objective of this review was to collect data and findings from other studies and articles to assess, theoretically, if (68)GA-PSMA PET/CT is a more appropriate prostate cancer diagnostic technique in comparison with others available such as CT, (18)F-fluoro-2-deoxyglucose PET/CT, or (18)F-fluoromethylcholine ( (18)F-choline) PET/CT...
January 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28216940/epididymal-metastasis-from-prostate-adenocarcinoma-an-unusual-and-challenging-diagnosis-suspected-in-gallium-68-prostate-specific-membrane-antigen-positron-emission-tomography-computed-tomography-and-histologically-confirmed
#4
Sofia Santos-Lopes, João Lobo, Rui Henrique, Jorge Oliveira
A few cases of prostate adenocarcinoma (PCa) metastases to the epididymis have been documented in literature. We report a case of a 69-year-old man with a left epididymal metastasis, 6 years after radical prostatectomy and adjuvant radiation therapy for PCa. Although he developed biochemical recurrence, only gallium-68 prostate-specific membrane antigen-positron emission tomography/computed tomography revealed high uptake in the left testis and retrovesical space. An unrecognized painless firm nodule was palpable on the left epididymis...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216327/combined-whole-body-and-multi-parametric-prostate-mri-as-a-single-step-approach-for-the-simultaneous-assessment-of-local-recurrence-and-metastatic-disease-after-radical-prostatectomy
#5
Nicola L Robertson, Evis Sala, Matthias Benz, Jonathan Landa, Peter Scardino, Howard I Scher, Hedvig Hricak, Hebert A Vargas
PURPOSE: To report our initial experience using "whole body and dedicated prostate (WB+P)" MRI as a single exam for the assessment of local recurrence and metastatic disease in patients with suspected recurrent prostate cancer (PCa) after radical prostatectomy (RP). MATERIALS AND METHODS: IRB-approved retrospective single-center study. 76 consecutive patients with clinically suspected recurrent PCa following RP underwent combined WB+P-MRI in a single session (10/2014-01/2016)...
February 16, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28210997/3d-skeletal-uptake-of-18-f-sodium-fluoride-in-pet-ct-images-is-associated-with-overall-survival-in-patients-with-prostate-cancer
#6
Sarah Lindgren Belal, May Sadik, Reza Kaboteh, Nezar Hasani, Olof Enqvist, Linus Svärm, Fredrik Kahl, Jane Simonsen, Mads H Poulsen, Mattias Ohlsson, Poul F Høilund-Carlsen, Lars Edenbrandt, Elin Trägårdh
BACKGROUND: Sodium fluoride (NaF) positron emission tomography combined with computer tomography (PET/CT) has shown to be more sensitive than the whole-body bone scan in the detection of skeletal uptake due to metastases in prostate cancer. We aimed to calculate a 3D index for NaF PET/CT and investigate its correlation to the bone scan index (BSI) and overall survival (OS) in a group of patients with prostate cancer. METHODS: NaF PET/CT and bone scans were studied in 48 patients with prostate cancer...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28209912/detection-efficacy-of-hybrid-68-ga-psma-ligand-pet-ct-in-prostate-cancer-patients-with-biochemical-recurrence-after-primary-radiation-therapy-defined-by-phoenix-criteria
#7
Ingo Einspieler, Isabel Rauscher, Charlotte Düwel, Markus Krönke, Christoph Rischpler, Gregor Habl, Sabrina Dewes, Armin Ott, Hans-Jürgen Wester, Markus Schwaiger, Tobias Maurer, Matthias Eiber
The aim of this retrospective study was to evaluate the detection rate of Glu-NH-CO-NH-Lys-(Ahx)-[(68)Ga(HBED-CC)] ((68)Ga-PSMA ligand) positron emission tomography/computed tomography (PET/CT) in patients with biochemical recurrent prostate cancer (PC) defined by Phoenix criteria after external beam radiotherapy (EBRT) or brachytherapy as primary treatment. Methods: 118 patients were finally eligible for this retrospective analysis with a median prostate-specific antigen (PSA) of 6.4 ng/mL (range: 2.2-158...
February 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28197764/new-frontiers-in-prostate-cancer-imaging-clinical-utility-of-prostate-specific-membrane-antigen-positron-emission-tomography
#8
REVIEW
Asim Afaq, Deepak Batura, Jamshed Bomanji
Prostate-specific membrane antigen positron emission tomography (PSMA PET) is a relatively new method of imaging prostate cancer that increases diagnostic accuracy in detecting and guiding management in various stages of the disease pathway. Gallium-68-labelled PSMA PET has increased the sensitivity of detection of disease recurrence at low PSA levels, thus allowing an optimal window for salvage treatment. Apart from its use in disease recurrence, PSMA PET has the potential for increasing sensitivity and specificity for primary tumour localisation and in detecting lymph node disease, leading to a more accurate initial staging of the condition...
February 14, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28195907/solitary-psma-positive-pulmonary-metastasis-in-biochemical-relapse-of-prostate-cancer
#9
Nils Groe Hokamp, Carsten Kobe, Eric Linzenich, David Maintz, Alexander Drzezga
A 63-year-old man with a history of prostate cancer, treated with resection, radiation, and androgen-depriving therapy over 4 years, was referred to our department with suspicion of recurrence based on increased blood PSA levels (1.60 ng/mL). Ga PSMA PET/CT identified a solitary, PSMA-positive pulmonary nodule in the right lung. After resection, histologic analysis confirmed prostatic origin, and the blood PSA level decreased to 0.13 ng/mL. Solitary pulmonary metastasis from prostate cancer is rare. The benefits of local treatment of a single metastasis even in advanced disease are disputed among oncologists...
February 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28193503/clinical-translation-of-a-psma-inhibitor-for-99m-tc-based-spect
#10
Guillermina Ferro-Flores, Myrna Luna-Gutiérrez, Blanca Ocampo-García, Clara Santos-Cuevas, Erika Azorín-Vega, Nallely Jiménez-Mancilla, Emmanuel Orocio-Rodríguez, Jenny Davanzo, Francisco O García-Pérez
BACKGROUND: Prostate-specific membrane antigen (PSMA) is highly over-expressed in advanced prostate cancers. (68)Ga-labeled PSMA inhibitors (iPSMA) are currently used for prostate cancer detection by PET imaging. The availability of simple, efficient and reproducible radiolabeling procedures is essential for developing new SPECT radiopharmaceuticals for clinical translation. The aim of this research was to prepare (99m)Tc-EDDA/HYNIC-Lys(Nal)-Urea-Glu ((99m)Tc-EDDA/HYNIC-iPSMA) obtained from lyophilized kit formulations and evaluate the in vitro and in vivo radiopharmaceutical binding to prostate cancer cells over-expressing PSMA, as well as the (99m)Tc-EDDA/HYNIC-iPSMA normal biodistribution in humans and the preliminary uptake in patients with prostate cancer...
February 3, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28168589/impact-of-pet-acquisition-durations-on-image-quality-and-lesion-detectability-in-whole-body-68-ga-psma-pet-mri
#11
Benjamin Noto, Florian Büther, Katharina Auf der Springe, Nemanja Avramovic, Walter Heindel, Michael Schäfers, Thomas Allkemper, Lars Stegger
BACKGROUND: While (68)Ga-PSMA PET-MRI might be superior to PET-CT with regard to soft tissue assessment in prostate cancer evaluation, it is also known to potentially introduce additional PET image artefacts. Therefore, the impact of PET acquisition duration and attenuation data on artefact occurrence, lesion detectability, and quantification was investigated. To this end, whole-body PET list mode data from 12 patients with prostate cancer were acquired 1 h after injection of 2 MBq/kg [(68)Ga]HBED-CC-PSMA on a hybrid PET-MRI system...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28166149/incidental-detection-of-head-and-neck-squamous-cell-carcinoma-on-68ga-psma-11-pet-ct
#12
Courtney Lawhn-Heath, Robert R Flavell, Christine Glastonbury, Thomas A Hope, Spencer C Behr
We present a case of an incidentally detected squamous cell carcinoma of the oropharynx on Ga-PSMA-11 PET. A 71-year-old man's condition was diagnosed as prostate carcinoma after a year of rising serum prostate-specific antigen. The staging Ga-PSMA PET/CT demonstrated focal radiotracer uptake in the prostate corresponding to his known primary prostate cancer. However, a PSMA-avid 3.4-cm mass was incidentally found in the right tongue base that was biopsied, confirming squamous cell carcinoma.
February 3, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28152910/choosing-wisely-in-oncology-are-we-ready-for-value-based-care
#13
Doug Blayney, Mohammad Jahanzeb, Pamela Kadlubek, August Knape, Merry Jennifer Markham, Trang Pham, Tracey L Evans
: 275 Background: The Choosing Wisely (CW) Campaign challenges patients, healthcare providers, and specialty disease societies to make better decisions about healthcare delivery. In 2012, Schnipper et al. published ASCO's Top Five List targeting overuse of medications, tests, and procedures that are costly and lack evidence. 1.) Do not use cancer-directed therapy for patients with low performance status (undocumented, 3 or 4). 2.) Do not use PET, CT and radionuclide bone scans in the staging of early prostate cancer...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28138747/-68-ga-psma-11-pet-ct-in-primary-staging-of-prostate-cancer-psa-and-gleason-score-predict-the-intensity-of-tracer-accumulation-in-the-primary-tumour
#14
Christian Uprimny, Alexander Stephan Kroiss, Clemens Decristoforo, Josef Fritz, Elisabeth von Guggenberg, Dorota Kendler, Lorenza Scarpa, Gianpaolo di Santo, Llanos Geraldo Roig, Johanna Maffey-Steffan, Wolfgang Horninger, Irene Johanna Virgolini
PURPOSE: Prostate cancer (PC) cells typically show increased expression of prostate-specific membrane antigen (PSMA), which can be visualized by (68)Ga-PSMA-11 PET/CT. The aim of this study was to assess the intensity of (68)Ga-PSMA-11 uptake in the primary tumour and metastases in patients with biopsy-proven PC prior to therapy, and to determine whether a correlation exists between the primary tumour-related (68)Ga-PSMA-11 accumulation and the Gleason score (GS) or prostate-specific antigen (PSA) level...
January 31, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28135101/design-and-investigation-of-a-18f-labeled-benzamide-derivative-as-a-high-affinity-dual-sigma-receptor-subtype-radioligand-for-prostate-tumor-imaging
#15
Dongzhi Yang, Anthony Comeau, Wayne D Bowen, Robert H Mach, Brian D Ross, Hao Hong, Marcian E Van Dort
High overexpression of sigma (σ) receptors (σ1 and σ2 subtypes) in a variety of human solid tumors has prompted the development of σ receptor-targeting radioligands, as imaging agents for tumor detection. A majority of these radioligands to date, target the σ2 receptor, a potential marker of tumor proliferative status. The identification of approximately equal proportions of both σ receptor subtypes in prostate tumors, suggests that a high affinity, dual σ receptor-targeting radioligand could potentially provide enhanced tumor targeting efficacy in prostate cancer...
January 30, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28134694/pulmonary-opacities-and-bronchiectasis-avid-on-68ga-psma-pet
#16
Kirsten Bouchelouche, Mikkel Holm Vendelbo
Prostate-specific membrane antigen (PSMA) is highly expressed in prostate cancer, and the expression increases with tumor aggressiveness, metastatic disease, and recurrence. Despite its name, PSMA is also expressed in neovasculature of other tumors including lung cancer. Here, we demonstrate a case of increased PSMA expression on Ga-PSMA PET/CT in benign lung opacities and bronchiectasis in a prostate cancer patient. Thus, increased PSMA activity in the lungs may be due to both benign and malignant diseases and warrants further evaluation...
January 27, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28134691/parathyroid-adenoma-mimicking-a-malignant-lymph-node-on-18f-choline-pet-ct
#17
Bliede Van den Broeck, Daan De Maeseneer, Ruth De Gersem, Kathia De Man
Prostate carcinoma is the most common cancer in men. After local therapy, disease recurs in many patients. A choline PET/CT is indicated in case of biochemical relapse of prostate carcinoma to determine the site of recurrence (local and/or distant) and to help select the next line of therapy. Choline PET-CT is also known to show an elevated uptake in hyperfunctioning parathyroid adenoma. This case report shows the difficulty to distinguish between both entities if they occur simultaneously in an oncologic patient...
January 27, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28133356/-laparoscopic-resection-in-a-case-of-local-recurrence-of-rectal-cancer
#18
Kiminori Yanagisawa, Shinichi Yoshioka, Mutsumi Fukunaga, Shoko Honda, Ryohei Yukimoto, Shinji Tokuyama, Akina Saito, Kazuyuki Okada, Ken Konishi, Hideo Ota, Shigekazu Yokoyama, Hirofumi Miki, Kenji Kobayashi
A 65-year-old man had undergone high anterior resection for rectal cancer. Seven years after the surgery, a liver metastasis was identified, and the metastasis was surgically resected. A year after the liver surgery, blood testing showed high carcinoembryonic antigen(CEA). A fluorodeoxyglucose(FDG) / -positron emission tomography(PET)/CT examination showed a high FDG accumulation at the rectal anastomosis site, and we diagnosed local recurrence of rectal cancer and prostate invasion. Because there were no distant metastases, he underwent laparoscopic lower anterior resection, radical prostatectomy, and ileostomy...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28131751/18f-psma-1007-pet-ct-detects-micrometastases-in-a-patient-with-biochemically-recurrent-prostate-cancer
#19
Frederik L Giesel, Claudia Kesch, Mijin Yun, Jens Cardinale, Uwe Haberkorn, Klaus Kopka, Clemens Kratochwil, Boris A Hadaschik
No abstract text is available yet for this article.
December 29, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28131698/incidental-detection-of-tracer-avidity-in-meningioma-in-68-ga-psma-pet-ct-during-initial-staging-for-prostate-cancer
#20
T K Jain, A G S Jois, S Kumar V, S K Singh, R Kumar, B R Mittal
No abstract text is available yet for this article.
January 25, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
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