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Clinical Nuclear Medicine

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https://www.readbyqxmd.com/read/27922872/18f-fluorodeoxyglucose-uptake-in-anti-n-methyl-d-aspartate-receptor-encephalitis-associated-with-an-immature-teratoma
#1
Ryusuke Nakamoto, Yuji Nakamoto, Takayoshi Ishimori, Yasutaka Fushimi, Kaori Togashi
We report a case of anti-N-methyl-D-aspartate-receptor (anti-NMDAR) encephalitis associated with an immature teratoma developed in a 38-year-old woman. Positron emission tomography (PET) revealed focal intense uptake of F-fluorodeoxyglucose in an area of the brain corresponding to the right medial temporal lobe as well as an intrapelvic tumor. After the PET examination, the patient complained of disorientation and short-term memory loss. The ovarian tumor was resected and diagnosed as an immature teratoma. The cerebrospinal fluid analysis was positive for anti-NMDAR antibody...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922871/excellent-response-to-177lu-psma-617-radioligand-therapy-in-a-patient-with-advanced-metastatic-castration-resistant-prostate-cancer-evaluated-by-68ga-psma-pet-ct
#2
Wolfgang Roll, Axel Bode, Matthias Weckesser, Martin Bögemann, Kambiz Rahbar
Recently radiolabeled ligands targeting prostate specific membrane antigen (PSMA) have been introduced for diagnostics and treatment of prostate cancer. Labeled with Lutetium, PSMA radioligand therapy (RLT) is one of the most promising new treatments of metastatic castration refractory prostate cancer. We present images of Ga-PSMA PET/CT and parameters of response of a 75-year-old heavily pretreated metastatic castration refractory prostate cancer patient with extended bone metastases, showing an extraordinary biochemical response in PSA-levels concordant to SUV decline in bone metastases...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922870/quality-and-safety-in-health-care-part-xx-goal-directed-fluid-therapy-and-the-universal-protocol
#3
Jay A Harolds
There have been numerous initiatives to improve quality and safety in surgery. Goal-directed fluid therapy and a quality bundle for emergency laparotomy surgery are two of them. The establishment of a Universal Protocol to prevent the wrong procedure, the wrong patient having a procedure, or the wrong site for a procedure is an important safeguard for patients.
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922869/long-distance-endovascular-growth-of-jugulotympanic-paraganglioma-evident-in-68ga-dotatate-pet-but-concealed-on-ct
#4
Nemanja Avramovic, Matthias Weckesser, Aglaé Velasco, Markus Stenner, Benjamin Noto
A 60-year-old woman was referred to contrast-enhanced CT for evaluation of jugular vein thrombosis incidentally detected by ultrasound. Contrast-enhanced CT showed an enhanced tumor of the right skull base highly suspicious of jugulotympanic paraganglioma. However, the jugular veins showed a nearly symmetric contrast enhancement without clear evidence of thrombosis. Consecutive Ga-DOTATATE PET/CT depicted high tumor uptake, which comprised the entire internal jugular vein. Endovascular growth of paraganglioma might be missed on contrast-enhanced CT because of high vascularization of the lesion...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922868/re-incidental-gallbladder-cancer-visualized-from-posttreatment-131i-whole-body-scan
#5
Byeong-Cheol Ahn
No abstract text is available yet for this article.
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922867/the-value-of-99mtc-ecd-spect-with-statistical-image-analysis-on-enhancing-the-early-diagnosis-of-primary-progressive-aphasia
#6
Cheng-Yu Wei, Pai-Yi Chiu, Po-Nien Hou, Hiroshi Matsuda, Guang-Uei Hung
A 64-year-old woman with poor short-term memory was first suspected as early Alzheimer disease. Tc ECD brain SPECT was arranged for differential diagnosis. A small area of mild hypoperfusion was noted in the left temporal lobe on conventional display. Further statistical analysis of SPECT with an easy Z-score imaging system showed large areas of distinct hypoperfusion in left precentral and perisylvian cortical areas, compatible with typical pictures of nonfluent variant primary progressive aphasia (PPA), but no involvement in areas characteristic for Alzheimer disease...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922866/quality-and-safety-in-health-care-part-xix-variants-of-the-eras-program
#7
Jay A Harolds
The integrated recovery pathway is a variant of the enhanced recovery pathway after surgery program, which saw a further decrease in complications and mean length of stay after a change in culture was instituted with more accountability of the staff to following the pathway. This was accomplished using a team-based comprehensive unit-based safety program. It has also been found that another variant of the enhanced recovery pathway after surgery program had a further improvement of patient outcomes after instituting a "preventive surgical site infection bundle...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922865/additional-value-of-early-phase-18f-fp-cit-pet-image-for-differential-diagnosis-of-atypical-parkinsonism
#8
Soyoung Jin, Minyoung Oh, Seung Jun Oh, Jungsu S Oh, Sang Ju Lee, Sun Ju Chung, Jae Seung Kim
PURPOSE: Regional cerebral perfusion is coupled to metabolism in general. Early perfusion dominant imaging using F-FP-CIT PET (pCIT) may provide complementary information to delayed dopamine transporter dominant images. We investigated the ability of pCIT to differentiate atypical Parkinson disorder from Parkinson disease (PD) compared to FDG and the image quality for optimizing the acquisition time. METHODS: Sixty-seven subjects [PD, 23 subjects; multiple system atrophy-cerebellar type (MSA-C), 27 subjects; MSA-Parkinson type (MSA-P), 12 subjects; and progressive supranuclear palsy (PSP), 5 subjects] underwent F-FP-CIT and FDG PET...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922864/99mtc-mdp-uptake-in-diffuse-pleural-recurrences-of-pulmonary-neuroendocrine-carcinoma
#9
Taisong Wang, Wenli Qiao, Yan Xing, Jinhua Zhao
A 39-year-old woman with a history of pulmonary neuroendocrine carcinoma segmental palliative resection underwent a Tc-MDP bone scintigraphy to evaluate possible osseous metastases. The static images revealed diffuse elevated activity in the left hemithorax, more prominent in the lower thorax, which is suggestive of malignant pleural effusion. However, SPECT/CT images showed that the elevated activity was from pleura-based soft tissue masses, which were confirmed as recurrent tumor pathologically after biopsy...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922863/suppression-of-myocardial-18f-fdg-uptake-through-prolonged-high-fat-high-protein-and-very-low-carbohydrate-diet-before-fdg-pet-ct-for-evaluation-of-patients-with-suspected-cardiac-sarcoidosis
#10
Yang Lu, Christopher Grant, Karen Xie, Nadera J Sweiss
BACKGROUND: A major obstacle in using FDG-PET/CT to diagnose cardiac sarcoidosis (CS) is the unpredictable physiological myocardial FDG uptake. We hypothesized that a prolonged 72-hour pretest high-fat, high-protein, and very-low-carbohydrate (HFHPVLC) diet preparation could suppress physiologic myocardial uptake of FDG and thus help to identify active CS. METHODS: This retrospective study included 215 FDG-PET/CT tests from 207 patients with biopsy-proven sarcoidosis and clinical suspicion for CS between July 2014 and December 2015...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922862/improved-detection-of-minimal-residual-disease-by-11c-methionine-pet-ct-in-a-young-patient-with-unusual-extramedullary-presentation-of-recurrent-multiple-myeloma
#11
Carmelo Caldarella, Salvatore Annunziata, Livio Pagano, Valerio De Stefano, Vittoria Rufini
Extramedullary relapse of multiple myeloma (MM) is uncommon. A 40-year-old woman with history of MM underwent PET/CT using C-methionine (C-MET) after the detection of a vulvar lesion on MRI, biopsy proven to be extramedullary relapse of MM. The vulvar lesion was negative at the F-FDG PET/CT but showed high uptake of C-MET; focal uptake of both F-FDG and C-MET was shown within the muscles of the left leg, histologically confirmed as extramedullary relapse of MM. F-FDG PET/CT performed after chemotherapy showed no uptake in both sites, whereas posttreatment C-MET PET/CT showed persistence of residual uptake within the vulvar lesion...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922861/pet-mr-outperforms-pet-ct-in-suspected-occult-tumors
#12
Tetsuro Sekine, Felipe de Galiza Barbosa, Bert-Ram Sah, Cäcilia E Mader, Gaspar Delso, Irene A Burger, Paul Stolzmann, Edwin E Ter Voert, Gustav K von Schulthess, Patrick Veit-Haibach, Martin W Huellner
BACKGROUND: To compare the diagnostic accuracy of PET/MR and PET/CT in patients with suspected occult primary tumors. METHODS: This prospective study was approved by the institutional review board. Sequential PET/CT-MR was performed in 43 patients (22 male subjects; median age, 58 years; range, 20-86 years) referred for suspected occult primary tumors. Patients were assessed with PET/CT and PET/MR for the presence of a primary tumor, lymph node metastases, and distant metastases...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922860/the-impact-of-radiological-response-to-peptide-receptor-radionuclide-therapy-on-overall-survival-in-patients-with-metastatic-midgut-neuroendocrine-tumors
#13
Mehmet Yalchin, Amelia Oliveira, Eleni Theocharidou, Deborah Pencharz, Shaunak Navalkissoor, Ann-Marie Quigley, Martin Walker, Martyn Caplin, Christos Toumpanakis
PURPOSE OF THE REPORT: Peptide receptor radionuclide therapy (PRRT) is an effective treatment for advanced neuroendocrine tumors (NET); however, long-term survival data are scarce. The aim of this study is to determine long-term survival in patients with metastatic midgut NET, according to response to PRRT. PATIENTS AND METHODS: One hundred thirty-three consecutive patients with progressive metastatic midgut NET underwent PRRT. Response at 1 year post PRRT was classified as partial response, stable disease, disease progression, or death...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922859/fdg-pet-ct-for-monitoring-response-of-melanoma-to-the-novel-oncolytic-viral-therapy-talimogene-laherparepvec
#14
Matthew F Covington, Clara N Curiel, Lois Lattimore, Ryan J Avery, Phillip H Kuo
61-year-old woman with stage IIIa (T3a N1a M0) left lower leg melanoma with lesions suggestive of in-transit metastases 8 months following wide local excision and femoral nodal dissection. FDG-PET/CT demonstrated 5 FDG-avid in-transit nodal metastases in the distal left leg, confirmed on biopsy. Talimogene laherparepvec (T-VEC) oncolytic immunotherapy consisting of intralesional injections of modified herpes simplex virus-expressing granulocyte-macrophage colony-stimulating factor was completed over 6 months...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27879491/18f-fdg-pet-ct-in-renal-infections-evidence-of-acute-pyelonephritis-in-a-horseshoe-kidney
#15
Maxime Morelle, Alice Jaillard, Dimitri Bellevre, Guillaume Collet, Grégory Petyt
A 58-year-old paraplegic patient was prescribed F-FDG for persistent inflammatory syndrome after aortic surgery for dissection. The examination was performed on a Siemens mCT Flow PET/CT and shows a moderate prostate uptake, related to prostatitis on self-catheterization and a focal renal cortical hypermetabolism of the left medial midpole of a horseshoe kidney, which corresponds to renal parenchyma on the CT, and suggests pyelonephritis, confirmed by Tc-DMSA SPECT/CT.
November 22, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27879490/intense-uptake-in-amyloidosis-of-the-seminal-vesicles-on-68ga-psma-pet-mimicking-locally-advanced-prostate-cancer
#16
Maximilian Stephens, David Insoo Kim, Benjamin Shepherd, Sonja Gustafson, Paul Thomas
We report a case of benign senile seminal vesicle amyloidosis demonstrating intense Ga-prostate-specific membrane antigen (PSMA) uptake on PET/CT. A 68-year-old man underwent staging PSMA PET/CT and MRI for biopsy-proven prostate adenocarcinoma. There was an intense focus of Ga-PSMA uptake in the primary malignancy, as well as symmetrical intense uptake in the seminal vesicles bilaterally that was reported as multifocal disease with local invasion. Final histology after radical prostatectomy showed amyloidosis of the seminal vesicles without any evidence of prostate cancer...
November 22, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27879489/breast-fibroadenoma-with-increased-activity-on-68ga-dotatate-pet-ct
#17
Georgios Z Papadakis, Corina Millo, Samira M Sadowski, Apostolos H Karantanas, Ulas Bagci, Nicholas J Patronas
Fibroadenoma is the most common benign breast tumor in women of reproductive age, carrying little to no risk of breast cancer development. We report on a case of a woman with history of neuroendocrine tumor who on follow-up imaging tests underwent whole-body PET/CT study using Ga DOTATATE. The scan showed increased focal activity in the right breast, which was biopsied revealing a fibroadenoma. The presented data suggests cell surface overexpression of somatostatin receptors by this benign breast tumor. Moreover, this finding emphasizes the need for cautious interpretation of Ga DOTATATE-avid breast lesions that could mimic malignancy in neuroendocrine tumor patients...
November 22, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27879488/18f-naf-pet-demonstrating-unusual-focal-tracer-activity-in-the-brain
#18
Anuradha Thenkondar, Lida Jafari, Robbie Sooriash, Fereshteh Hajsadeghi, Gholam R Berenji, Yuxin Li
A 60-year-old man with enlarged prostate, hypertension, and diabetes was referred for F-NaF PET/CT to evaluate possible metastatic lesions. The patient appeared asymptomatic on the day of the study, without any signs indicating stroke. Patient also had no known history of malignancy or cerebrovascular disease. He had mild elevation of the prostate-specific antigen level, and biopsy of his prostate was not performed. Patient had long-standing history of chronic back pain and abdominal pain. The PET bone scan demonstrated a large area of very intense tracer uptake in the brain...
November 22, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27819859/spect-ct-s-advantage-for-preoperative-localization-of-small-parathyroid-adenomas-in-primary-hyperparathyroidism
#19
Patricia Sandqvist, Inga-Lena Nilsson, Per Grybäck, Alejandro Sanchez-Crespo, Anders Sundin
PURPOSES: The aims of this study were to assess the performance of Tc-sestamibi SPECT/CT, with diagnostic CT quality, compared with SPECT alone for preoperative localization of parathyroid adenomas and to assess the influence of adenoma weight on the correct adenoma lateralization with SPECT/CT and with SPECT alone. METHODS: Two hundred forty-nine consecutive patients, biochemically diagnosed with primary hyperparathyroidism, were examined with a combined SPECT/CT scanner...
November 4, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27819854/re-fdg-pet-ct-findings-of-intracardiac-myeloid-sarcoma
#20
Kamal Kant Sahu, Archana Gautam, Sikander Ailawadhi
No abstract text is available yet for this article.
November 4, 2016: Clinical Nuclear Medicine
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