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https://www.readbyqxmd.com/read/29240557/impact-of-motion-compensation-and-partial-volume-correction-for-18f-naf-pet-ct-imaging-of-coronary-plaque
#1
J Cal-González, C Tsoumpas, M L Lassen, S Rasul, L Koller, M Hacker, K Schäfers, T Beyer
Recent studies have suggested that 18F-NaF-PET enables visualization and quantification of plaque micro-calcification in the coronary tree. However, PET imaging of plaque calcification in the coronary arteries is challenging because of the respiratory and cardiac motion as well as partial volume effects. The objective of this work is to implement an image reconstruction framework, which incorporates compensation for respiratory as well as cardiac motion (MoCo) and partial volume correction (PVC), for cardiac 18F-NaF PET imaging in PET/CT...
December 14, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29238205/predictive-value-of-interim-pet-ct-visual-interpretation-in-the-prognosis-of-patients-with-aggressive-non-hodgkin-s-lymphoma
#2
Cheng-Cheng Liao, Yun-Ying Qin, Xiao-Hong Tan, Jia-Jie Hu, Qi Tang, Yan Rong, Hong Cen, Le-Qun Li
Objective: The objective of the study was to evaluate the prognostic value of positron emission tomography (PET)/computed tomography (CT) visual interpretation in patients with aggressive non-Hodgkin's lymphoma (NHL) using a meta-analysis and systematic review. Methods: Using the PubMed, Embase, and Web of Science databases, we performed a systematic review of the use of visual evaluation mid-chemotherapy to evaluate the prognosis of aggressive NHL in studies published up to May 2017...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29238109/present-and-future-roles-of-fdg-pet-ct-imaging-in-the-management-of-gastrointestinal-cancer-an-update
#3
REVIEW
Kazuhiro Kitajima, Masatoyo Nakajo, Hayato Kaida, Ryogo Minamimoto, Kenji Hirata, Masakatsu Tsurusaki, Hiroshi Doi, Yoshiko Ueno, Keitaro Sofue, Yukihisa Tamaki, Koichiro Yamakado
Positron emission tomography/computed tomography (PET/CT) integrated with 2-[18F]fluoro-2-deoxy-D-glucose (FDG) is a useful tool for acquisition of both glucose metabolism and anatomic imaging data, as only a single device and one diagnostic session is required, thus opening a new field in clinical oncologic imaging. FDG-PET/CT has been successfully used for initial staging, restaging, assessment of early treatment response, evaluation of metastatic disease response, and prognostication of intestinal cancer as well as various malignant tumors...
November 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/29237966/a-study-of-the-pathological-outcome-of-positron-emission-tomography-computed-tomography-2-18f-fluro-2-deoxy-d-glucose-avid-lesion-a-5-years-retrospective-study
#4
Gurudutt Gupta, Jatin S Gandhi, Anila Sharma, Sunil Pasricha, Anurag Mehta, Avinash Rao, Meenakshi Kamboj
INTRODUCTION: Positron emission tomography-computed tomography (PET-CT) has been commonly used for staging and follow-up in cancer patients. The present study compares radiological and pathological outcomes at all the sites. The benign nonphysiological uptake reduces the specificity of the modality due to high false positive (FP) rate although sensitivity for malignant lesions may be high. AIMS AND OBJECTIVES: To study the sensitivity, specificity, positive and negative predictive value (PPV and NPV) of PET-CT in the detection of malignant lesions for all sites using pathological and final clinical outcome...
October 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29236066/avid-18f-fdg-uptake-in-idiopathic-tumoral-calcinosis-mimicking-lymph-node-metastasis
#5
Jesper Strandberg, Helle D Zacho
Tumoral calcinosis is a benign condition characterized by periarticular calcified lesions that is frequently observed in patients with chronic renal failure. Tumoral calcinosis often presents with subcutaneous masses and joint swelling. We present a case of tumoral calcinosis with dramatically increased 18F-fluoro-2-deoxy-d-glucose (18F-FDG) uptake on positron emission tomography/computed tomography (PET/CT) that mimicked lymphoma or lymph node metastases.
December 13, 2017: Diagnostics
https://www.readbyqxmd.com/read/29235187/the-clinical-utility-of-fluorodeoxyglucose-positron-emission-tomography-for-investigation-of-fever-in-immunocompromised-children
#6
Shiqi Stacie Wang, Francoise Mechinaud, Karin Thursky, Timothy Cain, Eddie Lau, Gabrielle M Haeusler
AIM: Fever in immunocompromised children presents significant challenges. We aimed to determine the clinical impact of fluorodeoxyglucose-positron emission tomography (FDG-PET) in combination with computed tomography (CT) in children with malignancy or following haematopoietic stem cell transplantation with prolonged or recurrent fever. METHODS: Immunocompromised children who underwent FDG-PET/CT for investigation of prolonged or recurrent fever were identified from hospital databases...
December 13, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29235002/the-added-diagnostic-value-of-18f-fluorodihydroxyphenylalanine-pet-ct-in-the-preoperative-work-up-of-small-bowel-neuroendocrine-tumors
#7
Pietro Addeo, Gilles Poncet, Bernard Goichot, Loic Leclerc, Cécile Brigand, Didier Mutter, Benoit Romain, Izzie-Jacques Namer, Philippe Bachellier, Alessio Imperiale
BACKGROUND: The precise localization of the primary tumor and/or the identification of multiple primary tumors improves the preoperative work-up in patients with small bowel (SB) neuroendocrine tumor (NET). The present study assesses the diagnostic value of 18F-fluorodihydroxyphenylalanine (18F-FDOPA) positron emission tomography/computed tomography (PET/CT) during the preoperative wok-up of SB NETs. METHODS: Between January 2010 and June 2017, all consecutive patients with SB NETs undergoing preoperative 18F-FDOPA PET/CT and successive resection were analyzed...
December 12, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29234846/fdg-pet-ct-as-a-powerful-tool-for-diagnosing-and-monitoring-treatment-outcomes-of-relapsing-polychondritis
#8
Pauline Baudart, Achille Aouba, Marie Beaufrère, Nicolas Aide
No abstract text is available yet for this article.
December 12, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29234821/-neuroendocrine-tumors-of-the-abdomen
#9
REVIEW
M Juchems
CLINICAL/METHODICAL ISSUE: Gastroenteropancreatic neuroendocrine neoplasia (GEP-NEN) are a heterogeneous group of complex tumors, which is often difficult to classify due to heterogeneity and varying locations. STANDARD RADIOLOGICAL METHODS: Ultrasound, computed tomography (CT), magnetic resonance imaging (MRI) and positron-emission tomography computed tomography (PET/CT) are available for the localization of NEN as well as for the staging. METHODOLOGICAL INNOVATIONS: In particular, nuclear medical examination methods with somatostatin analogues are of great importance since radioactively labeled receptor ligands make tumors visible with high sensitivity...
December 12, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29234267/incidental-detection-of-occult-thyroid-carcinoma-with-11c-choline-pet-ct-for-high-risk-prostate-cancer
#10
Adama Ouattara, Tiago Ribeiro de Oliveira, Serge Holz, Hannes Van den Bossche, David Strybol, Christophe Assenmacher, Wouter Everaerts, Gert De Meerleer, Steven Joniau
We report a case of a 65-year-old male patient with high-risk prostate cancer, re-staged with 11C-choline positron emission tomography/computed tomography (PET/CT) for prostate specific antigen recurrences 3 years after radical prostatectomy and adjuvant radiation therapy. In addition to 2 suspicious presacral lymph nodes which were resected and proven to be metastatic, PET/CT revealed a very high uptake in a calcified thyroid nodule. Evaluation with fine needle aspiration was suspicious for thyroid carcinoma and the patient underwent total thyroidectomy, confirming a non-metastatic encapsulated follicular variant of papillary thyroid carcinoma...
November 2017: Current Urology
https://www.readbyqxmd.com/read/29232805/value-of-imaging-study-in-predicting-pelvic-lymph-node-metastases-of-uterine-cervical-cancer
#11
Wonguen Jung, Kyung Ran Park, Kyung-Ja Lee, Kyubo Kim, Jihae Lee, Songmi Jeong, Yi-Jun Kim, Jiyoung Kim, Hai-Jeon Yoon, Byung-Chul Kang, Hae Soo Koo, Sun Hee Sung, Min-Sun Cho, Sanghui Park
Purpose: To evaluate the diagnostic accuracy of computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography/computed tomography (PET/CT) in predicting pelvic lymph node (LN) metastases in patients with cervical cancer. Materials and Methods: From January 2009 to March 2015, 114 patients with FIGO stage IA1-IIB uterine cervical cancer who underwent hysterectomy with pelvic lymphadenectomy and took CT, MRI, and PET/CT before surgery were enrolled in this study...
December 15, 2017: Radiation Oncology Journal
https://www.readbyqxmd.com/read/29232247/salivary-gland-activity-obscures-mandibular-metastasis-of-prostate-carcinoma-on-68ga-prostate-specific-membrane-antigen-pet
#12
Thabo Lengana, Ismaheel Lawal, Tebatso Boshomane, Kehinde Ololade, Florette Reyneke, Chimbabantiu Kaoma, Neo Mokgoro, Mariza Vorster, Mike Sathekge
We report a case of a 65-year-old man with prostate cancer; his treatment history included radical prostatectomy followed by radiation therapy and subsequent androgen deprivation therapy for more than 5 years. He currently presented with a history of rising prostate-specific antigen and complained of jaw aches. Ga-prostate-specific membrane antigen PET/CT study performed for suspected biochemical recurrence demonstrated vertebral lesions and lesion in his jaw. Subsequent biopsy of jaw lesion demonstrated prostate cancer metastases...
December 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29232245/intense-68ga-psma-uptake-in-diverticulum-of-the-sigmoid-colon
#13
Mads Ryø Jochumsen, Kirsten Bouchelouche
We present a case of a diverticulum of the sigmoid colon with intense prostate-specific membrane antigen (PSMA) activity on Ga-PSMA PET/CT. CT scan and colonoscopy showed no signs of inflammation or malignancy. This case presents an addition to the collection of benign pitfalls when reporting PSMA PET/CT; however, a Ga-PSMA up-taking focus in the colon should always cause further examination, as malignant etiology must be ruled out.
December 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29232243/artifactual-hepatic-metastasis-on-fdg-pet-ct-secondary-to-cryoablation-for-adrenal-metastasis
#14
Joseph Frankl, Naghmehossadat Eshghi, Tamara F Lundeen, Phillip H Kuo
A 65-year-old woman with metastatic lung cancer was referred for CT-guided cryoablation of a right adrenal metastasis. For cryoablation, probes were placed into the adrenal region. FDG PET/CT 3 months later showed new activity in hepatic segment 6 initially suspected to be metastasis. Proximity of the hepatic lesion to the adrenal metastasis was a strange coincidence and prompted review of imaging from the cryoablation. CT showed the probe entered the liver, and postablation image demonstrated injury to the liver adjacent to the adrenal metastasis...
December 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29231290/cardiovascular-magnetic-resonance-imaging-and-clinical-performance-of-somatostatin-receptor-positron-emission-tomography-in-cardiac-sarcoidosis
#15
Carmen Pizarro, Folke Kluenker, Darius Dabir, Daniel Thomas, Florian C Gaertner, Markus Essler, Christian Grohé, Georg Nickenig, Dirk Skowasch
AIMS: Cardiac affection constitutes a major limiting condition in systemic sarcoidosis. The primary objective of this study was to investigate the persistence rate of cardiac sarcoid involvement by cardiovascular magnetic resonance (CMR) imaging in patients diagnosed with cardiac sarcoidosis (CS). Moreover, we examined the additional insights into myocardial damage's characteristics gained by somatostatin receptor scintigraphy. METHODS AND RESULTS: In a pilot study, we had previously identified cardiac involvement-diagnosed by CMR imaging-to be present in 29 of 188 patients (15...
December 12, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29230956/prevalence-of-non-18-f-fluorodeoxyglucose-avid-incidental-findings-of-clinical-significance-on-whole-body-positron-emission-tomography-computed-tomography-a-review-of-500-consecutive-cases
#16
James A Sheldon, Kelvin K Yap, Kim L Taubman, Stephen M Schlicht
INTRODUCTION: The prevalence of incidental 18 F-fluorodeoxyglucose (FDG)-avid findings on positron emission tomography-computed tomography (PET/CT) has been extensively described. Few studies, however, have assessed the prevalence and significance of non-FDG-avid findings; pathology that is identified on review of the low-dose, non-contrast CT. The aim of this study was to determine the overall prevalence of non FDG-avid incidental findings on PET/CT and the prevalence of 'clinically significant' non FDG-avid pathology...
December 11, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29230383/solitary-extramedullary-plasmacytoma-of-the-cricoid-cartilage-case-report
#17
Simone Krebs, Ian Ganly, Ronald Ghossein, Joanna Yang, Joachim Yahalom, Heiko Schöder
Solitary plasmacytoma (SP) is an extremely rare form of hematologic malignancy that can be classified as solitary bone plasmacytoma or solitary extramedullary plasmacytoma. Here, we report a patient who presented with progressive shortness of breath and foreign body sensation in his throat. Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) demonstrated an abnormal FDG-avid soft tissue mass arising from the larynx involving the cricoid cartilage without additional suspicious lesions...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29230009/the-use-of-pet-ct-in-prostate-cancer
#18
REVIEW
Roger Li, Gregory C Ravizzini, Michael A Gorin, Tobias Maurer, Matthias Eiber, Matthew R Cooperberg, Mehrdad Alemozzaffar, Matthew K Tollefson, Scott E Delacroix, Brian F Chapin
BACKGROUND: Positron emission tomography/computed tomography (PET/CT) has recently emerged as a promising diagnostic imaging platform for prostate cancer. Several radiolabelled tracers have demonstrated efficacy for cancer detection in various clinical settings. In this review, we aim to illustrate the diverse use of PET/CT with different tracers for the detection of prostate cancer. METHODS: We searched MEDLINE using the terms 'prostate cancer', 'PET', 'PET/CT' and 'PET/MR')...
December 11, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/29228756/interim-pet-ct-may-predict-pfs-and-os-in-t-all-lbl-adult-patients
#19
Liang Wang, Jing-Hua Wang, Xi-Wen Bi, Xiao-Qin Chen, Yue Lu, Zhong-Jun Xia
T lymphoblastic leukemia/lymphoma (T-ALL/LBL) is highly aggressive. Although intensive chemotherapies such as ALL-type regimens are commonly used, about half adult patients eventually relapse and die of T-ALL/LBL. Overwhelming evidences have confirmed that interim PET can predict survival outcomes and guide subsequent treatments in Hodgkin lymphoma. However, whether interim PET-CT can predict survival outcomes or not in T-ALL/LBL patients remains unclear. 47 adult patients of T-ALL/LBL were retrospectively reviewed...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228638/thoracic-radiation-induced-pleural-effusion-and-risk-factors-in-patients-with-lung-cancer
#20
Jing Zhao, Regina M Day, Jian-Yue Jin, Leslie Quint, Hadyn Williams, Catherine Ferguson, Li Yan, Maurice King, Ahmad Albsheer, Martha Matuszak, Feng-Ming Spring Kong
The risk factors and potential practice implications of radiation-induced pleural effusion (RIPE) are undefined. This study examined lung cancer patients treated with thoracic radiation therapy (TRT) having follow-up computed tomography (CT) or 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT. Increased volumes of pleural effusion after TRT without evidence of tumor progression was considered RIPE. Parameters of lung dose-volume histogram including percent volumes irradiated with 5-55 Gy (V5-V55) and mean lung dose (MLD) were analyzed by receiver operating characteristic analysis...
November 14, 2017: Oncotarget
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