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https://www.readbyqxmd.com/read/27909770/the-natural-history-of-takotsubo-syndrome-a-two-year-follow-up-study-with-myocardial-sympathetic-and-perfusion-g-spect-imaging
#1
Stelvio Sestini, Francesco Pestelli, Mario Leoncini, Francesco Bellandi, Christian Mazzeo, Luigi Mansi, Ignasi Carrio, Antonio Castagnoli
PURPOSE: To investigate changes in sympathetic activity, perfusion, and left ventricular (LV) functionality in takotsubo cardiomyopathy (TTC) patients from onset (T0) to post-onset conditions at 1 month (T1), 1-2 years (T2, T3). METHODS: Twenty-two patients (70 ± 11 years) underwent serial gated single photon emission tomography (G-SPECT) studies with (123)I-mIBG and (99m)Tc-Sestamibi. Statistics were performed using ANOVA/Sheffé post-hoc, correlation test, and receiver operating characteristic (ROC) curve analysis (p < 0...
December 1, 2016: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27904855/multiple-endocrine-neoplasia-type-1-with-anterior-mediastinal-parathyroid-adenoma-successful-localization-using-tc-99m-sestamibi-spect-ct
#2
Hye Lim Park, Ie Ryung Yoo, Sung Hoon Kim, Sohee Lee
The most common manifestation of multiple endocrine neoplasia type 1 (MEN1) is hyperparathyroidism. Treatment of hyperparathyroidism in MEN patients is surgical removal of the parathyroid glands, however ectopic parathyroid gland is challenging for treatment. A 51-year-old female, the eldest of 3 MEN1 sisters, had hyperparathyroidism with ectopic parathyroid adenoma in the mediastinal para-aortic region, which was detected by technetium-99m (Tc-99m) sestamibi scintigraphy and single-photon emission computed tomography/computed tomography (SPECT/CT)...
December 2016: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/27867896/synchronous-parathyroid-adenoma-and-papillary-thyroid-cancer-detected-on-99m-tc-sestamibi-scintigraphy
#3
Sameer Kamalakar Taywade, Nishikant A Damle, Madhavi Tripathi, Shipra Agarwal, Sameer Aggarwal
No abstract text is available yet for this article.
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27842909/influence-of-a-negative-sestamibi-scan-on-the-decision-for-parathyroid-operation-by-the-endocrinologist-and-surgeon
#4
Susana Wu, Stephanie H Hwang, Philip I Haigh
BACKGROUND: It has been observed that negative sestamibi scans may impact practice patterns in patients with primary hyperparathyroidism. However, there are no published data on the issue. The objective was to elucidate the influence of negative sestamibi scans on referrals by endocrinologists for parathyroidectomy and surgeon decision-making. METHODS: All patients with primary hyperparathyroidism were identified within a region-wide health care system over a 2-year period...
November 11, 2016: Surgery
https://www.readbyqxmd.com/read/27834016/is-c-11-methionine-pet-ct-able-to-localise-sestamibi-negative-parathyroid-adenomas
#5
Theresia Weber, Martin Gottstein, Sabrina Schwenzer, Ambros Beer, Markus Luster
BACKGROUND: Patients with primary hyperparathyroidism (pHPT) and a negative preoperative Tc-99 sestamibi (MIBI) scintigraphy are considered to have a higher risk of persistent disease. The aim of this study was to assess whether additional imaging with C-11 methionine positron emission tomography/computed tomography (Met-PET/CT) is able to localise sestamibi-negative hyperfunctioning parathyroid glands. METHODS: In 50 patients (38 females, 12 males, age 13-81 years) with pHPT and negative localisation procedures such as ultrasound and sestamibi, a Met-PET/CT was performed before parathyroid surgery...
November 10, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27824326/99mtc-sestamibi-avid-soft-tissue-lesions-in-rosai-dorfman-disease
#6
Philip Kin-Wai Wong, Daniel J Lee, Saul Harari, Bruce J Barron
Langerhan's histiocytosis is a not uncommon disease, but a related disorder, Rosai-Dorfman (RDD) with extensive or exclusive extranodal distribution, is relatively rare. Ga and PET/CT imaging have typically been used for diagnosis and tracking response to treatment. The authors present a very unusual case wherein lesions of RDD actively accumulated Tc-sestamibi, which was injected as part of a scan to localize a parathyroid adenoma.
December 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27819859/spect-ct-s-advantage-for-preoperative-localization-of-small-parathyroid-adenomas-in-primary-hyperparathyroidism
#7
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/27796535/the-essentials-of-parathyroid-hormone-venous-sampling
#8
Bedros Taslakian, Scott O Trerotola, Barry Sacks, Rahmi Oklu, Amy Deipolyi
Hyperparathyroidism is an excess of parathyroid hormone in the blood due to over-activity of one or more parathyroid gland. Localization of abnormal glands with noninvasive imaging modalities, such as technetium sestamibi scan and cross-sectional imaging, has a high success rate. Parathyroid venous sampling is performed for patients with persistent or recurrent disease after previous parathyroid surgery, when repeat noninvasive imaging studies are negative or discordant. The success of invasive localization studies and results interpretation is dependent on the interventional radiologist's understanding of the normal and ectopic anatomic locations of parathyroid glands, as well as their blood supply and venous drainage...
October 28, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27776943/focused-parathyroidectomy-without-intraoperative-parathormone-testing-is-safe-after-pre-operative-localization-with-18-f-fluorocholine-pet-ct
#9
M Hocevar, L Lezaic, S Rep, K Zaletel, T Kocjan, M J Sever, J Zgajnar, B Peric
A focused surgical approach based on pre-operative localization replaced the classical four-gland exploration in patients with primary hyperparathyroidism (PHP). Sestamibi scanning and ultrasound are most often used localization modalities with reported sensitivity of 54-100% for identification of single gland disease. The aim of this study was to analyze the results of pre-operative localization with (18)F-Fluorocholine PET/CT (FCh-PET) in patients with PHP. A retrospective review of 151 patients with PHP who underwent surgery after pre-operative localization with FCh-PET was performed...
October 21, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27773409/role-of-pet-ct-in-the-assessment-of-myocardial-viability-in-patients-with-left-ventricular-dysfunction
#10
Madhur Kumar Srivatsava, M Indirani, I Sathyamurthy, G Sengottuvelu, Avani S Jain, S Shelley
AIM: Role of PET-CT in assessment of myocardial viability in patients with LV dysfunction. METHODS: This prospective study included 120 patients with LV dysfunction who underwent 99mTechnetium-Sestamibi myocardial perfusion SPECT-CT and 18FFDG cardiac PET-CT. They also underwent serial echocardiography and coronary angiography along with myocardial perfusion and FDG PET study. RESULTS: Thirty-three patients had single vessel disease, 48 had triple vessel disease, and rest had double vessel disease...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27759832/preclinical-molecular-imaging-development-of-instrumentation-for-translational-research-with-small-laboratory-animals
#11
Jorge Mejia, Ana Claudia Camargo Miranda, Ana Claudia Ranucci Durante, Larissa Rolim de Oliveira, Marycel Rosa Felisa Figols de Barboza, Katerin Taboada Rosell, Daniele Pereira Jardim, Alexandre Holthausen Campos, Marilia Alves Dos Reis, Marcela Forli Catanoso, Orfa Yineth Galvis-Alonso, Francisco Romero Cabral
Objective: To present the result of upgrading a clinical gamma-camera to be used to obtain in vivo tomographic images of small animal organs, and its application to register cardiac, renal and neurological images. Methods: An updated version of the miniSPECT upgrading device was built, which is composed of mechanical, electronic and software subsystems. The device was attached to a Discovery VH (General Electric Healthcare) gamma-camera, which was retired from the clinical service and installed at the Centro de Imagem Pré-Clínica of the Hospital Israelita Albert Einstein...
July 2016: Einstein
https://www.readbyqxmd.com/read/27749776/reverse-perfusion-pattern-in-myocardial-perfusion-imaging-using-technetium-99m-sestamibi-in-patients-with-intermediate-risk-for-coronary-artery-disease-in-relation-to-the-time-of-acquisition-and-intensity-of-visceral-uptake-as-artifactual-causes
#12
Babak Fallahi, Davood Beiki, Yalda Salehi, Alireza Emami-Ardekani, Armaghan Fard-Esfahani, Farahnaz Aghahosseini, Mahdi Haghighatafshar, Mohammad Eftekhari
OBJECTIVE: With respect to the equivocal value of the reverse perfusion pattern (RPP) in technetium-99m (Tc)-sestamibi myocardial perfusion imaging, a study was carried out to evaluate this pattern in association with the presence or absence of coronary artery disease (CAD) and other underlying factors, mainly the time of acquisition and the presence of intense visceral uptake. PATIENTS AND METHODS: We prospectively studied 102 patients with a moderate risk of CAD (41 men and 61 women, mean age: 56...
January 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/27743299/subacute-cardiac-rubidium-82-positron-emission-tomography-82-rb-pet-to-assess-myocardial-area-at-risk-final-infarct-size-and-myocardial-salvage-after-stemi
#13
Adam Ali Ghotbi, Andreas Kjaer, Lars Nepper-Christensen, Kiril Aleksov Ahtarovski, Jacob Thomsen Lønborg, Niels Vejlstrup, Kasper Kyhl, Thomas Emil Christensen, Thomas Engstrøm, Henning Kelbæk, Lene Holmvang, Lia E Bang, Rasmus Sejersten Ripa, Philip Hasbak
BACKGROUND: Determining infarct size and myocardial salvage in patients with ST-segment elevation myocardial infarction (STEMI) is important when assessing the efficacy of new reperfusion strategies. We investigated whether rest (82)Rb-PET myocardial perfusion imaging can estimate area at risk, final infarct size, and myocardial salvage index when compared to cardiac SPECT and magnetic resonance (CMR). METHODS: Twelve STEMI patients were injected with (99m)Tc-Sestamibi intravenously immediate prior to reperfusion...
October 14, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27741147/a-case-report-of-mediastinal-ectopic-parathyroid-adenoma-presented-as-parathyroid-crisis-localized-by-spect-ct
#14
Weibin Zhou, Min Chen
INTRODUCTION: Parathyroid crisis due to ectopic parathyroid adenomas can pose diagnostic and management challenges, since it is quite rare in clinical practice. CLINICAL FINDINGS/PATIENT CONCERNS: A 67-year-old Chinese male presented as a parathyroid crisis due to an ectopic mediastinal parathyroid adenoma with his serum calcium and PTH markedly increased in short time. An ultrasonography and computed tomography (CT) scan of the neck did not reveal any parathyroid adenoma...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27738627/methodological-aspects-of-99m-tc-sestamibi-guided-biopsy-in-breast-cancer
#15
A Collarino, R A Valdés Olmos, A F van der Hoeven, L M Pereira Arias-Bouda
PURPOSE: This review aims to discuss the methodological aspects of dedicated molecular breast imaging (MBI) using (99m)Tc-sestamibi as radiotracer to guide biopsy of occult or unclear breast lesions on mammography (MG) and ultrasound (US) that are suspicious on MBI (BI-RADS criteria 4 and 5), including its advantages, limitations and future clinical applications. METHODS: Literature search was performed using the PubMed/MEDLINE database and "(99m)Tc-sestamibi", "biopsy" and "breast cancer" as keywords...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27730083/clinical-and-laboratory-profile-of-primary-hyperparathyroidism-in-kashmir-valley-a-single-center-experience
#16
Raiz Ahmad Misgar, Parvez Mohiuddin Dar, Shariq Rashid Masoodi, Munir Ahmad, Khursheed Alam Wani, Arshad Iqbal Wani, Mir Iftikhar Bashir
BACKGROUND: Although primary hyperparathyroidism (PHPT) has become an asymptomatic disease in the West, in India, PHPT is still an uncommonly diagnosed, overtly symptomatic disease with skeletal, muscular, and renal manifestations. AIMS: To describe the profile and surgical outcome of 78 consecutive PHPT patients over a period of two decades at a single center. MATERIALS AND METHODS: All patients who underwent evaluation and surgery for PHPT from January 1996 to December 2015 were included...
September 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27701727/unusual-ectopic-parathyroid-adenoma-a-case-report
#17
Habibeh Taghavi Kojidi, Nazanin Vagharimehr, Shahrzad Mohseni, Mohammad Pajouhi, Mohammad Reza Mohajeri-Tehrani
An ectopically placed parathyroid in the mediastinum is a rare cause of persistent or recurrent primary hyperparathyroidism. They are rarely in a huge size. We report a case of a 70-year-old man with a history of total parathyroidectomy and thymectomy presented with a lack of appetite, nausea, and generalized bone pain, polydipsia and a calcium level of 14.4 mg/dl. 99mTc-sestamibi scintigraphy with single-photon emission computerized tomography (SPECT) showed a focal zone of radiotracer accumulation in the midline of anterior chest wall (xiphoid level)...
August 2016: Acta Medica Iranica
https://www.readbyqxmd.com/read/27679651/recurrence-of-hyperparathyroid-hypercalcemia-in-a-patient-with-the-hrpt-2-mutation-and-a-previous-parathyroid-carcinoma-in-hyperparathyroidism-jaw-tumor-syndrome
#18
Marco Mele, Lars Rolighed, MarieLouise Jespersen, Lars Rejnmark, Peer Christiansen
INTRODUCTION: Cancer in the parathyroid gland is rare, but parathyroid cancer is occasionally seen in relation to genetic abnormalities. Due to a limited amount of evidence, the optimal handling of these cases is not clear. Furthermore, the presence of a malignant parathyroid tumor is rarely known at the time of the initial operation; therefore, re-operations are often necessary. The aim of this study was to present the case of a patient with a previously diagnosed jaw tumor and parathyroid carcinoma that presents as a recurrence of hyperparathyroid hypercalcemia...
April 2016: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27677613/routine-evaluation-of-left-ventricular-function-using-czt-spect-with-low-injected-activities-and-limited-recording-times
#19
Marine Claudin, Laetitia Imbert, Wassila Djaballah, Nicolas Veran, Sylvain Poussier, Véronique Roch, Mathieu Perrin, Antoine Verger, Henri Boutley, Gilles Karcher, Pierre-Yves Marie
PURPOSE: Gamma-cameras, with Cadmium-Zinc-Telluride (CZT) detectors, allow to perform myocardial perfusion imaging (MPI) with limited injected activities and recorded times. This study aimed at determining whether the routine assessment of left ventricular (LV) function with such limited counts protocols compares well with reference values from cardiac MRI. METHODS: The study included patients who have undergone cardiac MRI and an MPI routinely planned on a CZT camera with a low-dose protocol (120 MBq of Sestamibi for stress and 360 MBq at rest for 75 kg body weight), while targeting the recording of only 500 myocardial kcounts in order to limit the recording times (<10 minutes for stress, <4 minutes for rest)...
September 27, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27663249/the-value-of-transient-ischemic-dilation-for-detecting-restenosis-after-coronary-artery-revascularization
#20
Salih Sinan Gultekin, Murat Sadic, Murat Bilgin, Gökhan Koca, Sadik Acikel, Ekrem Yeter, Meliha Korkmaz
AIM: Transient ischemic dilation (TID) is a marker of severe coronary artery disease (CAD). We aimed to assess the incremental value of TID in a cohort of patients with known significant CAD who had recurrence of symptoms after revascularization. METHODS: We identified in our databases 104 patients who had recent coronary revascularization and recurrence of symptoms. 62 patients had PCI (75 arteries) and 42 patients had CABG (104 arteries). All had follow-up stress SPECT MPI and repeat coronary angiography...
September 23, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
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