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https://www.readbyqxmd.com/read/27906859/recent-advances-in-nuclear-medicine-in-endocrine-oncology
#1
Markus Luster, Andreas Pfestroff, Frederik A Verburg
PURPOSE OF REVIEW: The purpose is to review recent advances concerning the role of nuclear medicine in endocrine oncology. RECENT FINDINGS: For I therapy of thyroid cancer a thyrotropin (TSH) more than 30 mU/l has for many years been deemed a condition sine qua non. However, new data show that patients with lower TSH levels at the time of ablation have the same rate of successful ablation as those with TSH more than 30 mU/l.I-124 combined integrated positron emission tomography and computed X-ray tomography was shown to be highly accurate in predicting findings on posttherapy radioiodine scanning and was shown to have a high prognostic power...
January 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/27904869/value-of-dedicated-head-and-neck-18-f-fdg-pet-ct-protocol-in-detecting-recurrent-and-metastatic-lesions-in-post-surgical-differentiated-thyroid-carcinoma-patients-with-high-serum-thyroglobulin-level-and-negative-131-i-whole-body-scan
#2
Mai Hong Son, Bui Quang Bieu, Le Ngoc Ha
OBJECTIVES: In clinical practice, approximately 10-25% of post-surgical differentiated thyroid carcinoma (DTC) patients with high serum thyroglobulin (Tg) and negative (131)I whole-body scan (WBS) have poor prognosis due to recurrent or metastatic lesions after radioactive iodine treatment. The purpose of this study was to evaluate the value of (18)F-FDG PET/CT scan in DTC patients with high serum Tg level and negative (131)I WBS. METHODS: 69 post-surgical DTC patients with high serum Tg level and negative post ablation (131)I WBS were enrolled in this study...
2016: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/27889091/breath-hold-pet-ct-guided-tumour-ablation-under-general-anaesthesia-accuracy-of-tumour-image-registration-and-projected-ablation-zone-overlap
#3
P B Shyn, S Tremblay-Paquet, K Palmer, S Tatli, K Tuncali, O I Olubiyi, N Hata, S G Silverman
AIM: To assess single-breath-hold combined positron-emission tomography/computed tomography (PET/CT) for accuracy of tumour image registration and projected ablation volume overlap in patients undergoing percutaneous PET/CT-guided tumour-ablation procedures under general anaesthesia. MATERIALS AND METHODS: Eight patients underwent 12 PET/CT-guided tumour-ablation procedures to treat 20 tumours in the lung, liver, or adrenal gland. Using breath-hold PET/CT, the centre of the tumour was marked on each PET and CT acquisition by four readers to assess two- (2D) and three-dimensional (3D) spatial misregistration...
November 23, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27824968/an-intrapericardial-ectopic-thyroid-mimicking-metastasis-in-a-patient-with-papillary-thyroid-cancer-localization-differential-diagnosis-by-18-f-fdg-pet-ct-and-ablation-by-131-i
#4
Seol Hoon Park, Minjung Seo, Tae Young Park, Seong Nam-Goong
We report a very rare case of incidental intrapericardial thyroid in a papillary thyroid cancer patient. Post ablation scan revealed iodine-131 ((131)I) uptake in the mid-chest. Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) was performed and showed a (18)F-FDG avid lesion between the right atrium and the ascending aorta, (which was) shown tube an ectopic thyroid and not metastasis. The lesion disappeared on a 6 month follow-up (123)I whole body scan while serum thyroglobulin was negative...
November 8, 2016: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27824959/risk-factors-and-stratification-for-recurrence-of-patients-with-differentiated-thyroid-cancer-elevated-thyroglobulin-and-negative-i-131-whole-body-scan-by-restaging-18-f-fdg-pet-ct
#5
Kursat Okuyucu, Semra Ince, Engin Alagoz, Ozdes Emer, Huseyin San, Elif Balkan, Aslı Ayan, Coskun Meric, Cem Haymana, Cengizhan Acıkel, Bengul Gunalp, Alper Ozgur Karacalioglu, Nuri Arslan
OBJECTIVE: In nearly 20%-30% of patients with differentiated thyroid carcinoma (DTC) relapse and 7% of them die during the next 10 years after initial diagnosis. In 10%-30% of patients with DTC after ablation therapy during the follow-up show a negative iodine-131 ((131)I) whole-body screening test ((131)I WBS) and increased serum thyroglobulin (Tg) level. Loss of ability of DTC metastatic lesions to trap (131)I is associated with pure survival and often aggressive disease. Several studies have shown that in DTC cases non trapping (131)I, fluorine-18-fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) can detect recurrence or metastases with high sensitivity (80%-90%)...
November 8, 2016: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/27796820/whole-body-diffusion-weighted-magnetic-resonance-imaging-wb-dw-mri-vs-choline-positron-emission-tomography-computed-tomography-choline-pet-ct-for-selecting-treatments-in-recurrent-prostate-cancer
#6
A J Conde-Moreno, G Herrando-Parreño, R Muelas-Soria, J Ferrer-Rebolleda, R Broseta-Torres, M P Cozar-Santiago, F García-Piñón, C Ferrer-Albiach
OBJECTIVE: To determine the effectiveness of whole-body diffusion-weighted magnetic resonance imaging (WB-DW-MRI) in detecting metastases by comparing the results with those from choline-positron emission tomography-computed tomography (choline-PET/CT) in patients with biochemical relapse after primary treatment, and no metastases in bone scintigraphy, CT and/or pelvic MRI, or metastatic/oligometastatic prostate cancer (PCa). Patients with this disease profile who could benefit from treatment with stereotactic body radiation therapy (SBRT) were selected and their responses to these techniques were rated...
October 31, 2016: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/27774839/differences-in-brain-glucose-metabolism-during-preparation-for-131-i-ablation-in-thyroid-cancer-patients-thyroid-hormone-withdrawal-versus-recombinant-human-thyrotropin
#7
Hyeonseok S Jeong, Eun Kyoung Choi, In-Uk Song, Yong-An Chung, Jong-Sik Park, Jin Kyoung Oh
BACKGROUND: In preparation for (131)I ablation, temporary withdrawal of thyroid hormone is commonly used in patients with thyroid cancer after total thyroidectomy. The current study aimed to investigate brain glucose metabolism and its relationships with mood or cognitive function in these patients using (18)F-fluoro-2-deoxyglucose positron emission tomography ((18)F-FDG-PET). METHOD: A total of 40 consecutive adult patients with thyroid carcinoma who had undergone total thyroidectomy were recruited for this cross-sectional study...
November 28, 2016: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/27751976/aggressive-disease-course-of-papillary-thyroid-carcinoma-with-focal-undifferentiated-component-a-case-report
#8
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/27716240/salvage-surgery-for-local-failures-after-stereotactic-ablative-radiotherapy-for-early-stage-non-small-cell-lung-cancer
#9
Naomi E Verstegen, Alexander P W M Maat, Frank J Lagerwaard, Marinus A Paul, Michel I Versteegh, Joris J Joosten, Willem Lastdrager, Egbert F Smit, Ben J Slotman, Joost J M E Nuyttens, Suresh Senan
INTRODUCTION: The literature on surgical salvage, i.e. lung resections in patients who develop a local recurrence following stereotactic ablative radiotherapy (SABR), is limited. We describe our experience with salvage surgery in nine patients who developed a local recurrence following SABR for early stage non-small cell lung cancer (NSCLC). METHODS: Patients who underwent surgical salvage for a local recurrence following SABR for NSCLC were identified from two Dutch institutional databases...
October 3, 2016: Radiation Oncology
https://www.readbyqxmd.com/read/27674743/temporal-change-in-quantitative-positron-emission-tomography-metrics-predicts-recurrence-in-early-stage-lung-cancer-patients-treated-with-stereotactic-ablative-radiation-therapy
#10
N D Prionas, S Aggarwal, J Shaffer, R von Eyben, E E Graves, P G Maxim, A Quon, M F Gensheimer, M Diehn, B W Loo
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27665481/clinical-staging-of-stage-i-non-small-cell-lung-cancer-in-the-netherlands-need-for-improvement-in-an-era-with-expanding-nonsurgical-treatment-options-data-from-the-dutch-lung-surgery-audit
#11
David Jonathan Heineman, Martijn Geert Ten Berge, Johannes Marlene Daniels, Michaël Ignatius Versteegh, Perla Jacqueline Marang-van de Mheen, Michael Wilhelmus Wouters, Wilhelmina Hendrika Schreurs
BACKGROUND: The clinical stage of non-small cell lung cancer (NSCLC) determines the initial treatment, whereas the pathologic stage best determines prognosis and the need for adjuvant treatment. In an era in which stereotactic ablative radiotherapy (SABR) has become an alternative modality to surgical intervention, clinical staging is even more important, because pathologic staging is omitted in the case of SABR. The objective of this study was to determine the concordance between clinical and pathologic stage in routine clinical practice for patients with early-stage NSCLC...
November 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27647003/rapid-virological-response-after-early-treatment-with-a-combined-therapy-of-ledipasvir-and-sofosbuvir-in-hcv-genotype-4-after-living-donor-liver-transplantation-in-a-hcc-downstaged-patient-case-report-and-review-of-the-literature
#12
Aiman Obed, Abdalla Bashir, Anwar Jarrad
BACKGROUND Hepatitis C virus (HCV) genotype 4 (GT-4) is widespread in the Middle East, where it is responsible for the majority of HCV infections. It shows moderate treatment response rates when compared to other genotypes in the current era of interferon-based regimens. However, in the era of direct acting antiviral (DAA) drugs, its response is at least as good as observed for HCV genotypes 1-3. CASE REPORT We present a case of a 44-year-old patient with HCV cirrhosis. Since 2007, he has been treated for HCV infection with multiple ineffective regimens of interferon (INF) and ribavirin...
September 20, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27646314/applications-of-advanced-imaging-in-cardiac-electrophysiology
#13
REVIEW
Mrinal Yadava, Michael D Shapiro
Imaging modalities such as computed tomography, magnetic resonance, positron emission tomography, and single-photon emission computed tomography are an indispensable component of cardiac arrhythmia management. Over the last two decades, developments in imaging techniques have facilitated safer and more effective cardiac ablation and device implantation procedures. Pre-procedural assessment of arrhythmogenic substrate and integration with electroanatomic data has significantly impacted the management of atrial fibrillation and ventricular tachycardia...
November 2016: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27591931/eau-estro-siog-guidelines-on-prostate-cancer-part-ii-treatment-of-relapsing-metastatic-and-castration-resistant-prostate-cancer
#14
Philip Cornford, Joaquim Bellmunt, Michel Bolla, Erik Briers, Maria De Santis, Tobias Gross, Ann M Henry, Steven Joniau, Thomas B Lam, Malcolm D Mason, Henk G van der Poel, Theo H van der Kwast, Olivier Rouvière, Thomas Wiegel, Nicolas Mottet
OBJECTIVE: To present a summary of the 2016 version of the European Association of Urology (EAU) - European Society for Radiotherapy & Oncology (ESTRO) - International Society of Geriatric Oncology (SIOG) Guidelines on the treatment of relapsing, metastatic, and castration-resistant prostate cancer (CRPC). EVIDENCE ACQUISITION: The working panel performed a literature review of the new data (2013-2015). The guidelines were updated, and the levels of evidence and/or grades of recommendation were added based on a systematic review of the literature...
August 31, 2016: European Urology
https://www.readbyqxmd.com/read/27584698/designing-microfluidic-devices-for-studying-cellular-responses-under-single-or-coexisting-chemical-electrical-shear-stress-stimuli
#15
Tzu-Yuan Chou, Yung-Shin Sun, Hsien-San Hou, Shang-Ying Wu, Yun Zhu, Ji-Yen Cheng, Kai-Yin Lo
Microfluidic devices are capable of creating a precise and controllable cellular micro-environment of pH, temperature, salt concentration, and other physical or chemical stimuli. They have been commonly used for in vitro cell studies by providing in vivo like surroundings. Especially, how cells response to chemical gradients, electrical fields, and shear stresses has drawn many interests since these phenomena are important in understanding cellular properties and functions. These microfluidic chips can be made of glass substrates, silicon wafers, polydimethylsiloxane (PDMS) polymers, polymethylmethacrylate (PMMA) substrates, or polyethyleneterephthalate (PET) substrates...
2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27567554/imaging-after-radiation-therapy-of-thoracic-tumors
#16
B Ghaye, M Wanet, M El Hajjam
Radiation-induced lung disease (RILD) is frequent after therapeutic irradiation of thoracic malignancies. Many technique-, treatment-, tumor- and patient-related factors influence the degree of injury sustained by the lung after irradiation. Based on the time interval after the completion of the treatment RILD presents as early and late features characterized by inflammatory and fibrotic changes, respectively. They are usually confined to the radiation port. Though the typical pattern of RILD is easily recognized after conventional two-dimensional radiation therapy (RT), RILD may present with atypical patterns after more recent types of three- or four-dimensional RT treatment...
October 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/27518562/astrocytic-insulin-signaling-couples-brain-glucose-uptake-with-nutrient-availability
#17
Cristina García-Cáceres, Carmelo Quarta, Luis Varela, Yuanqing Gao, Tim Gruber, Beata Legutko, Martin Jastroch, Pia Johansson, Jovica Ninkovic, Chun-Xia Yi, Ophelia Le Thuc, Klara Szigeti-Buck, Weikang Cai, Carola W Meyer, Paul T Pfluger, Ana M Fernandez, Serge Luquet, Stephen C Woods, Ignacio Torres-Alemán, C Ronald Kahn, Magdalena Götz, Tamas L Horvath, Matthias H Tschöp
We report that astrocytic insulin signaling co-regulates hypothalamic glucose sensing and systemic glucose metabolism. Postnatal ablation of insulin receptors (IRs) in glial fibrillary acidic protein (GFAP)-expressing cells affects hypothalamic astrocyte morphology, mitochondrial function, and circuit connectivity. Accordingly, astrocytic IR ablation reduces glucose-induced activation of hypothalamic pro-opio-melanocortin (POMC) neurons and impairs physiological responses to changes in glucose availability...
August 11, 2016: Cell
https://www.readbyqxmd.com/read/27516457/long-term-outcomes-of-catheter-ablation-of-ventricular-tachycardia-in-patients-with-cardiac-sarcoidosis
#18
Daniele Muser, Pasquale Santangeli, Rajeev K Pathak, Simon A Castro, Jackson J Liang, Silvia Magnani, Tatsuya Hayashi, Fermin C Garcia, Mathew D Hutchinson, Gregory E Supple, David S Frankel, Michael P Riley, David Lin, Robert D Schaller, Benoit Desjardins, Sanjay Dixit, David J Callans, Erica S Zado, Francis E Marchlinski
BACKGROUND: Catheter ablation (CA) of ventricular tachycardia (VT) in patients with cardiac sarcoidosis can be challenging because of the complex underlying substrate. We sought to determine the long-term outcome of CA of VT in patients with cardiac sarcoidosis. METHODS AND RESULTS: We enrolled 31 patients (age, 55±10 years) with diagnosis of cardiac sarcoidosis based on Heart Rhythm Society criteria and VT who underwent CA. In 23 (74%) patients, preprocedure cardiac magnetic resonance imaging and positron emission tomographic (PET) evaluation were performed...
August 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27501796/23-lung-metastases-treated-by-radiofrequency-ablation-over-10%C3%A2-years-in-a-single-patient-successful-oncological-outcome-of-a-metastatic-cancer-without-altered-respiratory-function
#19
Amandine Crombé, Xavier Buy, Yann Godbert, Nicolas Alberti, Michèle Kind, Françoise Bonichon, Jean Palussière
An 82-year-old man, who was diagnosed in 2002 with an oncocytic (Hürthle cell) thyroid carcinoma, was initially treated by local surgery and was refractory to radioiodine treatment. The patient had successive secondary recurrences from 2006 onwards. Metastases were suspected due to an elevation of thyroglobulin in serum. Hypermetabolic nodules were targeted using FDG PET as well as CT-guided radiofrequency ablations. Thyroglobulin levels decreased following each procedure. 10 years later, tolerance and efficacy are excellent; 23 lung metastases have been treated during 11 sessions without current relapse...
August 8, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27405041/brain-only-metastases-seen-on-fdg-pet-as-first-relapse-of-papillary-thyroid-carcinoma-two-years-post-thyroidectomy
#20
Sleiman Y Naddaf, Ghulam Mustafa Shah Syed, Abdulrahman Hadb, Saif Al-Thaqfi
We report a case of a 60-year-old man diagnosed with papillary thyroid cancer who had a relapse seen only in the brain at FDG PET on standard images. Total thyroidectomy was performed in July 2013 after initial diagnosis. Patient received I ablation in December 2013, followed by external beam radiotherapy to the neck. In September 2015, the patient presented with neurological symptoms. Brain MRI showed multiple brain metastases later confirmed on histopathology. An FDG PET/CT scan was performed to evaluate the whole body in November 2015...
September 2016: Clinical Nuclear Medicine
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