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Molecular Imaging and Radionuclide Therapy

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https://www.readbyqxmd.com/read/28291010/ectopic-pelvic-kidney-mimicking-sacral-metastasis-on-post-therapy-iodine-131-scan-of-a-thyroid-cancer-patient
#1
Selin Soyluoğlu Demir, Gül Ege Aktaş, Ahmet Polat, Ali Sarıkaya
A 25-year-old woman had total thyroidectomy and iodine-131 ablation therapy for papillary thyroid carcinoma. Whole body imaging on the 7(th) day of therapeutic activity demonstrated radioiodine uptake in the remnant tissue and intense heterogeneous uptake at the sacral region prominently in the posterior image. Initial interpretation was suspicious for sacral metastasis. Technetium-99m-methylene diphosphonate bone scan demonstrated normal bone uptake and the absence of left kidney. On blood-pool phase of bone scan, the absence of left renal activity and an extra area of uptake in the sacral region suggestive of pelvic kidney were noticed...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28291009/a-family-with-von-hippel-lindau-syndrome-the-findings-of-indium-111-somatostatin-receptor-scintigraphy-iodine-123-metaiodobenzylguanidine-scintigraphy-and-single-photon-emission-computerized-tomography
#2
Pelin Arıcan, Berna Okudan Tekin, Seniha Naldöken, Rıza Şefizade, Dilek Berker
Von Hippel-Lindau syndrome (VHLS) is an autosomal dominant hereditary familial disorder characterized by development of malignant and benign neoplasms. Differential diagnosis of the adrenal and pancreatic masses are difficult in patients with VHLS. Iodine-123 metaiodobenzylguanidine (I-123 MIBG) and indium-111 somatostatin receptor scintigraphies (In-111 SRS) have important roles in the differential diagnosis of adrenal and pancreatic masses in those patients. In this case report, we present the findings of I-123 MIBG single-photon emission computerized tomography (SPECT/CT) and In-111 SRS SPECT/CT in three members of a family with VHLS...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28291008/the-efficacy-of-yttrium-90-radiosynovectomy-in-patients-with-camptodactyly-arthropathy-coxa-vara-pericarditis-syndrome
#3
Sulaiman Mohammed Al-Mayouf, Nora Almutairi, Khalid Alismail
OBJECTIVE: Camptodactyly-arthropathy-coxa-vara-pericarditis (CACP) syndrome is an autosomal recessive disorder caused by mutations in PRG4 gene that encodes for proteoglycan 4, the main lubricant for joints and tendon surfaces. It is a non-inflammatory arthropathy, characterized by joint effusions and synovial hypertrophy. So far, there is no effective treatment for this disorder. To evaluate the effectiveness of yttrium-90 radiosynovectomy in arthropathy of patients with CACP syndrome...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28291007/correlation-of-minimum-apparent-diffusion-coefficient-and-maximum-standardized-uptake-value-of-the-primary-tumor-with-clinicopathologic-characteristics-in-endometrial-cancer
#4
Evrim Sürer Budak, Tayfun Toptaş, Funda Aydın, Ali Ozan Öner, Can Çevikol, Tayup Şimşek
OBJECTIVE: To explore the correlation of the primary tumor's maximum standardized uptake value (SUVmax) and minimum apparent diffusion coefficient (ADCmin) with clinicopathologic features, and to determine their predictive power in endometrial cancer (EC). METHODS: A total of 45 patients who had undergone staging surgery after a preoperative evaluation with (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computerized tomography (PET/CT) and diffusion-weighted magnetic resonance imaging (DW-MRI) were included in a prospective case-series study with planned data collection...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28291006/assessment-of-the-prevalence-of-diabetic-gastroparesis-and-validation-of-gastric-emptying-scintigraphy-for-diagnosis
#5
Zeinab Alipour, Foad Khatib, Seyed Masoud Tabib, Hamid Javadi, Esmail Jafari, Leila Aghaghazvini, Ali Mahmoud-Pashazadeh, Iraj Nabipour, Majid Assadi
OBJECTIVE: Gastroparesis is defined as delayed gastric emptying and is a common medical condition in diabetic patients. Scintigraphy is commonly used as a standard diagnostic procedure for the quantitative assessment of gastroparesis. The aims of this study were to determine an optimum imaging time for the diagnosis of gastroparesis, to assess the prevalence of gastroparesis, to evaluate the correlation between endoscopy and scintigraphy findings as well as the correlation between gastric emptying with patient genders, blood glucose concentration, and functional dyspepsia...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28291005/the-correlation-between-pre-treatment-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-parameters-and-clinical-prognostic-factors-in-pediatric-hodgkin-lymphoma
#6
Ebru Tatcı, İnci Uslu Biner, Suna Emir, Hikmet Gülşah Tanyıldız, Özlem Özmen, Engin Alagöz, Atila Gökçek, Gürses Şahin
OBJECTIVE: To compare standardized uptake values (SUV) derived from pre-treatment (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) imaging and clinical prognostic factors in pediatric patients with Hodgkin lymphoma (HL). METHODS: Pre-treatment FDG PET/CT findings of 28 children with HL were evaluated in this retrospective study. Metabolic tumor volume (MTV), SUVmax normalized by weight (SUVweight), lean body mass (SUVlbm), body surface area (SUVbsa) and plasma glucose levels of tumors (SUVglucose) were calculated using pre-treatment FDG PET/CT scan images...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28291004/-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-for-other-thyroid-cancers-medullary-anaplastic-lymphoma-and-so-forth
#7
Mine Araz, Derya Çayır
Positron emission tomography/computed tomography (PET/CT) with (18)F-fluorodeoxyglucose (FDG) is used in staging, restaging, and evaluation of therapy response in many cancers as well as differentiated thyroid carcinomas especially in non-iodine avid variants. Its potential in less frequent thyroid tumors like medullary, anaplastic thyroid cancers, thyroid lymphoma and metastatic tumors of the thyroid however, is not well established yet. The aim of this review is to provide an overview on the recent applications and indications of (18)F-FDG PET/CT in these tumors and to focus on the controversies in the clinical setting...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751979/an-incidental-solitary-plasmacytoma-of-bone-mimicking-neuroendocrine-tumor-metastasis-on-68ga-dotatate-positron-emission-tomography-computed-tomography
#8
Duygu Has Şimşek, Serkan Kuyumcu, Bilge Bilgiç, Emine Göknur Işık, Cüneyt Türkmen, Işık Adalet
A 54-year-old woman with suspicion of neuroendocrine tumor (NET) was referred for 68Ga-DOTATATE positron emission tomography/computed tomography (CT) imaging due to clinical findings. A well-defined osteolytic lesion on the corpus of the third lumbar vertebra was evident on CT images with mild uptake of 68Ga-DOTATATE, which led to suspicion of NET metastasis. Histopathologic examination revealed solitary plasmacytoma of the bone. The patient received local external radiotherapy for plasmacytoma. This case indicatesthat other diseases expressing somatostatin receptors may be inaccurately reported as tumor recurrence and highlights the importance of meticulous evaluation of positive findings...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751978/fasciola-hepatica-mimicking-malignancy-on-18f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#9
Erdem Sürücü, Yusuf Demir, Ahmet C Dülger, Abdüssamed Batur, Şehmus Ölmez, Mehmet T Kitapçı
A 48-year-old female with complaints of gastrointestinal symptoms such as abdominal pain, fatigue, vomiting, nausea, and weight loss was diagnosed with neuroendocrine tumor after removal of a 2 mm lesion from the stomach with endoscopic biopsy. Her magnetic resonance imaging that was performed due to on-going symptoms showed multiple linear hypointense lesions in the liver. Positron emission tomography/computed tomography (PET/CT) scan was performed for differential diagnosis, which showed high fluorodeoxyglucose (FDG) uptake in these lesions...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751977/18f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-imaging-in-a-patient-with-hiv-kaposi-sarcoma
#10
Arzu Cengiz, Ekin Şavk, Canten Tataroğlu, Yakup Yürekli
Kaposi sarcoma (KS) is a vascular neoplasm that often manifests with multiple vascular nodules on the skin and other organs. Various imaging modalities can be used to display disease extent. Herein we present a 65-year-old female patient with human immunodeficiency virus negative KS along with her whole-body positron emission tomography/computed tomography imaging findings.
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751976/aggressive-disease-course-of-papillary-thyroid-carcinoma-with-focal-undifferentiated-component-a-case-report
#11
Saima Riaz, Humayun Bashir, Aamna Hassan, Sajid Mushtaq, Arif Jamshed, Ahmad Murtaza
We report an aggressive papillary thyroid carcinoma (PTC) with focal undifferentiated component in a 32-year-old female. She had limited disease confined within the thyroid gland at diagnosis. Within 12 months of thyroidectomy and radioiodine ablation, thyroglobulin (Tg) levels were elevated. Second radioiodine ablative dose was given, however, stimulated Tg levels showed an upward trend with negative iodine scan within 12 months. An 18F fludeoxyglucose-avid solitary pulmonary nodule that was detected on positron emission tomography/computed tomography scan was resected followed by empiric radioiodine therapy...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751975/adverse-reactions-to-radioiodine-131i-therapy-of-goiter-in-west-african-tertiary-hospital
#12
Yetunde A Onimode, John E Ejeh, Akintunde T Orunmuyi
OBJECTIVE: Radioactive iodine therapy (RAIT) is established as an efficient means of treating toxic goiter (TG) globally. The field of nuclear medicine (NM) still appears novel to many Nigerian clinicians and patients. A culturally embedded dread of radiation may raise ethical and moral concerns about potential adverse effects in the wake of RAIT in our setting. An adverse drug reaction may be described as "a response to a drug which is noxious and unintended, and which occurs at doses normally used in man"...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751974/assessment-of-heart-rate-recovery-with-gated-myocardial-perfusion-scintigraphy-outcome-in-patients-with-coronary-artery-disease-a-retrospective-study-and-institutional-experience
#13
Yusuf Ziya Tan, Semra Özdemir, Burak Altun, Fatmanur Çelik
OBJECTIVE: This study aimed to investigate the effects of assessment with myocardial perfusion scintigraphy (MPS) and heart rate recovery (HRrec) measurements in combination to evaluate the current status of patients with a diagnosis or suspicion of coronary artery disease (CAD). METHODS: A total of 350 patients were included in the study. CAD group consisted of 200 patients with stable angina pectoris and a known history of CAD, while the control group consisted of 150 patients with suspicious stress test who had no history of known CAD...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751973/occupational-radiation-exposure-to-the-extremities-of-medical-staff-during-hysterosalpingography-and-radionuclide-bone-scan-procedures-in-several-nigerian-hospitals
#14
Nnamdi Norbert Jibiri, Tawakalitu Oluwatoyin Akintunde, Musa Yusuf Dambele, Christopher Jimoh Olowookere
OBJECTIVE: The practice of regular dose measurement helps to ascertain the level of occupational dose delivered to the staff involved in diagnostic procedures. This study was carried out to evaluate the dose exposed to the hands of radiologists and a radiologic technologist carrying out HSG and radionuclide bone scan examinations in several hospitals in Nigeria. METHODS: Radiation doses exposed to the hands of radiologists and a technician carrying out hysterosalpingography (HSG) and bone scan procedures were measured using calibrated thermo-luminescent dosimeters...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27751972/the-diagnostic-value-of-the-correlation-between-serum-anti-p53-antibody-and-positron-emission-tomography-parameters-in-lung-cancer
#15
Zekiye Hasbek, Ömer Tamer Doğan, İsmail Sarı, Birsen Yücel, Mehmet Metin Şeker, Bülent Turgut, Serdar Berk, Yavuz Siliğ
OBJECTIVE: Mutations in the p53 gene are the most commonly observed genetic abnormalities in malignancies. The purpose of this study was to assess the diagnostic value of serum anti-p53 antibody (Ab) along with the correlation between serum anti-p53 Ab level and quantitative positron emission tomography (PET) parameters such as maximum standardized uptake value (SUVmax), SUVave, metabolic tumor volume, total lesion glycolysis (TLG) and tumor size. METHODS: Serum anti-p53 Ab level was studied in three groups...
October 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27277328/kikuchi-disease-with-generalized-lymph-node-spleen-and-subcutaneous-involvement-detected-by-fluorine-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#16
Alshaima Alshammari, Evangelia Skoura, Nafisa Kazem, Rasha Ashkanani
Kikuchi-Fujimoto disease, known as Kikuchi disease, is a rare benign and self-limiting disorder that typically affects the regional cervical lymph nodes. Generalized lymphadenopathy and extranodal involvement are rare. We report a rare case of a 19-year-old female with a history of persistent fever, nausea, and debilitating malaise. Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) revealed multiple hypermetabolic generalized lymph nodes in the cervical, mediastinum, axillary, abdomen and pelvic regions with diffuse spleen, diffuse thyroid gland, and focal parotid involvement, bilaterally...
June 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27277327/sentinel-lymph-node-detection-by-3d-freehand-single-photon-emission-computed-tomography-in-early-stage-breast-cancer
#17
Salih Sinan Gültekin, Ahmet Oğuz Hasdemir, Serhat Tokgöz, Gülay Özgehan, Hakan Güzel, Cüneyt Yücesoy, Emine Öztürk, Ata Türker Arıkök
We herein present our first experience obtained by 3D freehand single-photon emission computed tomography (SPECT) (F-SPECT) guidance for sentinel lymph node detection (SLND) in two patients with early stage breast cancer. F-SPECT guidance was carried out using one-day protocol in one case and by the two-day protocol in the other one. SLND was performed successfully in both patients. Histopathologic evaluation showed that the excised nodes were tumor negative. Thus, patients underwent breast-conserving surgery alone...
June 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27277326/hypermetabolic-calcified-lymph-nodes-on-18fludeoxyglucose-positron-emission-tomography-computed-tomography-in-a-case-of-treated-ovarian-cancer-recurrence-residual-disease-or-benign-formation
#18
Alexandra Nikaki, Athanasios Alexopoulos, Fani Vlachou, Vasiliki Filippi, Ioannis Andreou, Vasiliki Rapti, Konstantinos Gogos, Konstantinos Dalianis, Roxani Efthymiadou, Vassilios Prassopoulos
The contribution of positron emission tomography/computed tomography (PET/CT) with 18F-fludeoxyglucose (FDG) in evaluating ovarian cancer recurrence even after a prolonged disease-free interval, and in therapy response is well-described. Calcifications observed in CT, although usually attributed to benign conditions, may actually represent active disease. Such an example of calcified formations is psammoma bodies. We present a case of 56-y. o. patient with ovarian cancer relapse at the supraclavicular area 18 years after complete response and disease-free interval...
June 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27277325/recurrence-incidence-in-differentiated-thyroid-cancers-and-the-importance-of-diagnostic-iodine-131-scintigraphy-in-clinical-follow-up
#19
Filiz Hatipoğlu, İnanç Karapolat, Özgür Ömür, Ayşegül Akgün, Ahmet Yanarateş, Kamil Kumanlıoğlu
OBJECTIVE: Differentiated thyroid cancers (DTC) are tumors with good prognosis. However, local recurrence or distant metastasis can be observed. In our study, we aimed to investigate the incidence of recurrence and the importance of diagnostic iodine-131 whole body scan (WBS) in clinical follow-up in patients with DTC. METHODS: The clinical data of 217 patients with DTC who were followed-up more than 3 years were reviewed retrospectively. The incidence of recurrence was investigated in a group of patients who had radioactive iodine (RAI) treatment and showed no sign of residual thyroid tissue or metastasis with diagnostic WBS that was performed at 6-12 months after therapy and had a thyroglobulin (Tg) level lower than 2 ng/dl...
June 5, 2016: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/27277324/is-very-high-thyroid-stimulating-hormone-level-required-in-differentiated-thyroid-cancer-for-ablation-success
#20
Zekiye Hasbek, Bülent Turgut
OBJECTIVE: Remnant ablation with radioactive iodine (I-131) is a successful form of treatment that aims to destroy the remaining residual tissue and/or metastatic tissue after total thyroidectomy in differentiated thyroid cancer (DTC) patients. High level of thyroid stimulating hormone (TSH) (≥30 mIU/L) is recommended for success of ablation treatment. In this retrospective study, our aim was to investigate whether the TSH levels at the time of ablation effect the success of radioactive iodine remnant ablation...
June 5, 2016: Molecular Imaging and Radionuclide Therapy
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