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Nuclear Medicine and Molecular Imaging

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https://www.readbyqxmd.com/read/29942405/incidental-detection-of-peri-renal-hemorrhage-on-f-18-fdg-pet-ct-imaging-in-a-patient-with-polycystic-kidney-disease
#1
Myoung Hyoun Kim, Dae-Weung Kim
A 72-year-old male patient with a history of polycystic kidney disease and lung malignancy underwent F-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) for the evaluation of tumor recurrence. The FDG PET/CT and subsequent non-enhanced CT scans revealed a hemorrhage in the peri-renal space of the left original kidney. Interesting in this case was the incidental detection of unexpected peri-renal hemorrhage during an oncologic assessment with FDG PET/CT.
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942404/incidental-detection-of-parathyroid-adenoma-on-somatostatin-receptor-pet-ct-and-incremental-role-of-18-f-fluorocholine-pet-ct-in-men1-syndrome
#2
Saurabh Arora, Nishikant Avinash Damle, Averilicia Passah, Madhav Prasad Yadav, Sanjana Ballal, Vivek Aggarwal, Yashdeep Gupta, Praveen Kumar, Madhavi Tripathi, Chandrasekhar Bal
Multiple endocrine neoplasia type 1 (MEN1) syndrome is characterized by combined occurrence of tumors of endocrine glands including the parathyroid, the pancreatic islet cells, and the anterior pituitary gland. Parathyroid involvement is the most common manifestation and usually the first clinical involvement in MEN1 syndrome, followed by gastroentero-pancreatic neuroendocrine tumors (NETs). Here we present a case where the patient initially presented with metastatic gastric NET and a single parathyroid adenoma was detected incidentally on 68 Ga-DOTANOC PET/CT done as part of post 177 Lu-DOTATATE therapy (PRRT) follow-up...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942403/survey-result-of-the-counting-efficiency-of-gamma-counter-by-certified-reference-materials
#3
Ji-In Bang, Ho-Young Lee, Geyoung Woon Noh, Jeong Mi Park, June Kee Yoon
Purpose: In radioimmunoassay (RIA), the gamma counter is the important instrument for the accurate measurement. To manage quality assurance of RIA, the counting efficiency of gamma counter is one of the important parameters. The aim of this study was to evaluate the counting efficiency of gamma counters in multiple institutes on the base of traceability by using the certified reference materials (CRMs). Methods: Twenty-three institutes that perform RIA were enrolled in this study...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942402/analysis-of-iodine-content-in-salts-and-korean-sauces-for-low-iodine-diet-education-in-korean-patients-with-thyroid-cancer-preparing-for-radioiodine-therapy
#4
Soo Young Kim, Jung Mi Park, Jae Pil Hwang
Purpose: A low-iodine diet is necessary in patients about to undergo radioiodine therapy for thyroid cancer to decrease the competitive absorption of ingested nonradioactive iodine. This study aimed to assess the iodine concentrations in salts and basic Korean sauces, and to provide fundamental data for guidelines on a low-iodine diet before radioiodine therapy. Methods: The iodine contents of refined salts, solar sea salts, fish sauces, and commonly used Korean sauces with added refined salt were determined by ICP-MS...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942401/a-single-intraperitoneal-injection-of-endotoxin-changes-glial-cells-in-rats-as-revealed-by-positron-emission-tomography-using-11-c-pk11195
#5
Miho Ota, Jun Ogura, Shintaro Ogawa, Koichi Kato, Hiroshi Matsuda, Hiroshi Kunugi
Purpose: Intracranial administration of lipopolysaccharide (LPS) is known to elicit a rapid innate immune response, activate glial cells in the brain, and induce depression-like behavior. However, no study has focused on the changes in glial cells induced by intraperitoneal injection of LPS in vivo. Methods: Ten adult male Fischer F344 rats underwent [11 C]PK11195 PET before and 2 days after intraperitoneal injection of LPS to evaluate the changes in glial cells...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942400/evaluating-the-predictive-ability-of-initial-staging-f-18-fdg-pet-ct-for-the-prognosis-of-non-hodgkin-malignant-lymphoma-patients-who-underwent-stem-cell-transplantation
#6
Yun Soo Park, Seok Mo Lee, Ji Sun Park, Sang Kyun Bae, Hye-Kyung Shim, Won-Sik Lee, Sang-Min Lee
Objectives: This study aimed to determine the value of clinical prognostic factors and semiquantitative metabolic parameters from initial staging fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (F-18 FDG PET/CT) in non-Hodgkin lymphoma (NHL) patients treated with stem cell transplantation (SCT). Methods: A total of 39 malignant lymphoma patients who underwent initial staging F-18 FDG PET/CT were enrolled in this study. SUVmax, MTV_wb, and TLG_wb were measured during the initial staging PET/CT...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942399/lu-177-based-peptide-receptor-radionuclide-therapy-for-advanced-neuroendocrine-tumors
#7
REVIEW
Keunyoung Kim, Seong-Jang Kim
Peptide receptor radionuclide therapy (PRRT) is a systemic cytotoxic radiation therapy using a compound of β-emitting radionuclide chelated to a peptide for the treatment of tumor with overexpressed specific cell receptor such as somatostatin receptor subtype 2 (SSTR2) of neuroendocrine tumor (NET). Surgical resection should be performed for the curative treatment for NETs when it is feasible; however, a multi-disciplinary approach is needed when locally advanced or metastasized disease. PRRT with lutetium-177 (Lu-177)-labeled somatostatin analogues, as a new treatment modality targeting metastatic or inoperable NETs expressing the SSTR2, have been developed and successfully used for the past two decades...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942398/treatment-of-bone-metastasis-with-bone-targeting-radiopharmaceuticals
#8
REVIEW
Joon Young Choi
Bone is a common metastatic site of cancer. Bone metastasis reduces life expectancy and results in serious symptoms and complications such as bone pain, pathological fractures, and spinal cord compression, decreasing quality of life by restricting sleep and mobility. Treatment for bone metastasis includes drugs (pure analgesics, hormones, cytotoxic chemotherapy, and bisphosphonates, among others), external radiation therapy, surgery, and radionuclide therapy using bone-targeting radiopharmaceuticals. Particulate radiation with α- or β-rays is used as a bone-targeting radiopharmaceutical in radionuclide therapy...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942397/peptide-receptor-radionuclide-therapy-and-the-treatment-of-gastroentero-pancreatic-neuroendocrine-tumors-current-findings-and-future-perspectives
#9
REVIEW
Nader Hirmas, Raya Jadaan, Akram Al-Ibraheem
Purpose and Methods: Patients with inoperable and metastasized neuroendocrine tumors (NETs), particularly those with grades 1 and 2, usually receive treatment with somatostatin analogues (SSAs). Peptide receptor radionuclide therapy (PRRT) has gained momentum over the past two decades in patients who progress on SSAs. 177Lu-DOTATATE is currently the most widely used radiopeptide for PRRT. We reviewed the recent evidence on PRRT and the treatment of gastroentero-pancreatic neuroendocrine tumors (GEP-NETs)...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942396/radiomics-in-oncological-pet-ct-clinical-applications
#10
REVIEW
Jeong Won Lee, Sang Mi Lee
18 F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) is widely used for staging, evaluating treatment response, and predicting prognosis in malignant diseases. FDG uptake and volumetric PET parameters such as metabolic tumor volume have been used and are still used as conventional PET parameters to assess biological characteristics of tumors. However, in recent years, additional features derived from PET images by computational processing have been found to reflect intratumoral heterogeneity, which is related to biological tumor features, and to provide additional predictive and prognostic information, which leads to the concept of radiomics...
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942395/contribution-of-radionuclide-theranostics-for-managing-intractable-malignancies
#11
EDITORIAL
Byeong-Cheol Ahn
No abstract text is available yet for this article.
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29942394/heterogeneity-does-matter-for-tumor-characterization
#12
EDITORIAL
Won Woo Lee
No abstract text is available yet for this article.
June 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662566/focal-increased-tc-99m-mdp-uptake-in-the-nutrient-foramen-of-the-femoral-diaphysis-on-bone-spect-ct
#13
Hwajin Cha, Soo Bin Park, Hyun-Joo Kim
We present images of an 83-year-old female with a history of osteoporosis and bilateral total knee replacement arthroplasty, referred for bone scintigraphy and single-photon emission computed tomography (SPECT)/computed tomography (CT), owing to left knee pain. No trauma to, or intense exercise of, the knee was reported. The bone scan and SPECT/CT revealed a focally increased Tc-99m methylene diphosphonate (MDP) uptake in the medial cortex of the left femoral diaphysis with matched linear radiolucency on CT images...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662565/follicular-lymphoma-mimicking-metastatic-nodes-on-the-f-18-fdg-pet-ct-and-mri-for-staging-of-endometrial-cancer
#14
Seok-Nam Yoon
A 53-year-old woman was diagnosed with endometrial carcinoma by vaginal bleeding. F-18 fluorodeoxy glucose positron emission tomography PET/CT (F-18 FDG PET/CT) scan for staging showed intense focal FDG uptake in the endometrium suggesting endometrial malignancy. PET/CT showed multiple node uptakes in the pericaval region, paraaortic region, common iliac, and both internal iliac and external iliac regions suggesting multiple pelvic and retroperitoneal node metastases. MRI showed multiple metastatic lymphadenopathy in the retroperitoneum and pelvic cavity...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662564/dual-pathologies-of-parathyroid-adenoma-and-papillary-thyroid-cancer-on-fluorocholine-and-fluorodeoxyglucose-pet-ct
#15
N T K Thanseer, Sanjay Kumar Bhadada, Ashwani Sood, Ashwin Singh Parihar, Divya Dahiya, Priyanka Singh, Rajender Kumar Basher, Ashim Das, Bhagwant R Mittal
18 F-Fluorocholine (FCH) PET/CT is evolving as a functional imaging modality for the preoperative imaging of abnormal parathyroid tissue(s) helping to localize eutopic and ectopic parathyroid tissue and limit the extent of surgery. FCH PET/CT may show incidental uptake in various thyroid lesions necessitating further evaluation, whereas the role of 18 F-fluorodeoxyglucose (FDG) PET/CT in the detection of incidental thyroid nodules is well documented. The case of a middle-aged woman with dual pathology of parathyroid adenoma and papillary thyroid cancer detected on FCH and FDG PET/CT is presented...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662563/-123-i-labeled-oxldl-is-widely-distributed-throughout-the-whole-body-in-mice
#16
Atushi Nakano, Hidekazu Kawashima, Yoshinori Miyake, Tsutomu Zeniya, Akihide Yamamoto, Kazuhiro Koshino, Takashi Temma, Tetsuya Fukuda, Yoshiko Fujita, Akemi Kakino, Shigehiko Kanaya, Tatsuya Sawamura, Hidehiro Iida
Purpose: Oxidized low-density lipoprotein (oxLDL) plays a key role in endothelial dysfunction, vascular inflammation, and atherogenesis. The aim of this study was to assess blood clearance and in vivo kinetics of radiolabeled oxLDL in mice. Methods: We synthesized 123 I-oxLDL by the iodine monochloride method, and performed an uptake study in CHO cells transfected with lectin-like oxLDL receptor-1 (LOX-1). In addition, we evaluated the consistency between the 123 I-oxLDL autoradiogram and the fluorescence image of DiI-oxLDL after intravenous injection for both spleen and liver...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662562/the-predictive-values-of-lesion-size-f-18-fdg-avidity-and-i-131-avidity-for-the-clinical-outcome-of-i-131-treatment-in-patients-with-metastatic-differentiated-thyroid-carcinoma-only-in-the-lung
#17
Joon Ho Choi, Byung Hyun Byun, Ilhan Lim, Hansol Moon, Jihyun Park, Kyoung Jin Chang, Byung Il Kim, Chang Woon Choi, Sang Moo Lim
Purpose: We aimed to evaluate the prognostic values of radiography, F-18 FDG PET, and I-131 whole body scans in patients with lung-only metastasis from differentiated thyroid carcinoma (DTC). Methods: Between 1998 and 2013, we included 31 patients (F: 26, M: 5) with lung-only metastasis from DTC who had been treated with I-131 and underwent PET. Lung metastasis was categorized according to the size (macronodular ≥1.0 cm vs. micronodular <1.0 cm), FDG avidity (avid vs...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662561/a-systematic-comparative-evaluation-of-68-ga-labeled-rgd-peptides-conjugated-with-different-chelators
#18
Akanksha Jain, Sudipta Chakraborty, H D Sarma, Ashutosh Dash
Purpose: The present paper reports a systematic study on the effect of bifunctional chelators (BFC) namely, NOTA, DOTA, and DTPA, on the radiochemical formulation, in vitro stability, and in vivo biological properties of 68 Ga-labeled RGD peptide derivatives. Methods: The three RGD conjugates namely, NOTA-Bn-E-[c(RGDfk)]2 , DOTA-Bn-E-[c(RGDfk)]2 , and DTPA-Bn-E-[c(RGDfk)]2 were radiolabeled with 68 Ga and the radiolabeling was optimized with respect to the ligand amount, radiolabeling time, and temperature...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662560/impact-of-68-ga-dota-peptide-pet-ct-on-the-management-of-gastrointestinal-neuroendocrine-tumour-gi-net-malaysian-national-referral-centre-experience
#19
Teik Hin Tan, Ching Yeen Boey, Boon Nang Lee
Purpose: The National Cancer Institute is the only referral centre in Malaysia that provides 68 Ga-DOTA-peptide imaging. The purpose of this study is to determine the impact of 68 Ga-DOTA-peptide PET/CT on the management of gastrointestinal neuroendocrine tumours (GI-NET). Materials and Methods: A cross-sectional study was performed to review the impact of 68 Ga-DOTA-peptide (68 Ga-DOTATATE or 68 Ga-DOTATOC) PET/CT on patients with biopsy-proven GI-NET between January 2011 and December 2015...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29662559/deep-learning-in-nuclear-medicine-and-molecular-imaging-current-perspectives-and-future-directions
#20
REVIEW
Hongyoon Choi
Recent advances in deep learning have impacted various scientific and industrial fields. Due to the rapid application of deep learning in biomedical data, molecular imaging has also started to adopt this technique. In this regard, it is expected that deep learning will potentially affect the roles of molecular imaging experts as well as clinical decision making. This review firstly offers a basic overview of deep learning particularly for image data analysis to give knowledge to nuclear medicine physicians and researchers...
April 2018: Nuclear Medicine and Molecular Imaging
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