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Perfusion scintigraphy

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https://www.readbyqxmd.com/read/28198536/prevalence-of-risk-factors-and-asymptomatic-carotid-atherosclerosis-in-diabetic-patients-screened-for-silent-myocardial-ischemia-by-spect-myocardial-imaging
#1
Irena Peovska Mitevska, Natalija Baneva, Marijan Bosevski, Elizabeta Srbinovska Kostovska
BACKGROUND: The aim of the study was to evaluate whether there is any association between myocardial ischemia, common risk factors and carotid artery ultrasound parameters in asymptomatic type 2 diabetic (DMT2) patients. MATERIAL AND METHODS: 60 asymptomatic DMT2 patients (pts) without known coronary artery disease (CAD) underwent one day rest Dypiridamole stress Tc-99m sestamibi single photon emission computed tomography myocardial perfusion scintigraphy (MPS)...
2017: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/28186444/the-diagnostic-accuracy-of-myocardial-perfusion-scintigraphy-in-athletes-with-abnormal-exercise-test-results
#2
Danny Ajp van de Sande, Ing Han Liem, Jan Hoogsteen, Hareld Mc Kemps
Background Previous studies revealed a relatively high prevalence of electrocardiographic findings indicative for myocardial ischemia in asymptomatic athletes undergoing pre-participation screening. Myocardial perfusion scintigraphy is generally considered a valuable diagnostic and prognostic modality and often used for further diagnostic evaluation in these subjects. However, data on the diagnostic accuracy of myocardial perfusion scintigraphy in athletes are scarce. Objectives The main purpose of this study was to investigate the positive predictive value of myocardial perfusion scintigraphy for detection of coronary artery disease in asymptomatic athletes with abnormal exercise testing results during pre-participation screening...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28176256/scintigraphic-outlook-of-patients-and-regions-with-myocardial-necrosis-at-myocardial-perfusion-scintigraphy
#3
EDITORIAL
Olga James
No abstract text is available yet for this article.
February 7, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28130808/the-usefulness-of-combined-brain-perfusion-single-photon-emission-computed-tomography-dopamine-transporter-single-photon-emission-computed-tomography-and-123-i-metaiodobenzylguanidine-myocardial-scintigraphy-for-the-diagnosis-of-dementia-with-lewy-bodies
#4
Seiju Kobayashi, Kanae Makino, Shigeki Hatakeyama, Takao Ishii, Masaru Tateno, Tomo Iwamoto, Hanako Tsujino, Kazuhito Kawasaki, Kouhei Mikuni, Wataru Ukai, Tomonori Murayama, Eri Hashimoto, Kumiko Utsumi, Chiaki Kawanishi
BACKGROUND: Current diagnostic criteria recommend neuroimaging as a diagnostic support tool for the clinical diagnosis of dementia with Lewy bodies (DLB). Because DLB causes characteristic impairments and disabilities, such as neuroleptic hypersensitivity, which may significantly increase morbidity and mortality, its prompt and correct diagnosis is very important. The aim of this study was to evaluate the extent to which diagnostic accuracy can be increased by using different combinations of brain perfusion single-photon emission computed tomography (bp-SPECT), (123) I-metaiodobenzylguanidine myocardial scintigraphy (MIBG scintigraphy), and DAT-SPECT...
January 28, 2017: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/28118184/impact-of-coronary-revascularization-on-the-clinical-and-scintigraphic-outlook-of-patients-with-myocardial-ischemia
#5
Francesco Nudi, Enrica Procaccini, Francesco Versaci, Alessandro Giordano, Annamaria Pinto, Giandomenico Neri, Giacomo Frati, Orazio Schillaci, Alessandro Nudi, Fabrizio Tomai, Giuseppe Biondi-Zoccai
AIMS: The impact of coronary revascularization on outcomes and ischemic burden among patients with objective proof of ischemia is not yet established. We appraised the impact of revascularization on outcomes and residual ischemia in patients with objective evidence of ischemia at myocardial perfusion scintigraphy (MPS). METHODS: We queried our database for stable patients with myocardial ischemia at MPS, excluding those with prior myocardial infarction, systolic dysfunction, or cardiomyopathy...
January 23, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28095020/current-status-of-ventilation-perfusion-scintigraphy-for-suspected-pulmonary-embolism
#6
Darlene Metter, Mark Tulchinsky, Leonard M Freeman
OBJECTIVE: The purpose of this article is to outline recent progress made in ventilation-perfusion (V/Q) scintigraphy imaging techniques and the interpretation systems used for the diagnosis of pulmonary embolism (PE). Various state-of-the-art approaches that can be selected according to the needs dictated by the medical practice environment and specific patient groups are presented. CONCLUSION: Although advances in tomographic imaging have certainly improved the sensitivity of V/Q scans for the diagnosis of PE, they may lead to overdiagnosis by revealing small and clinically insignificant PEs...
January 17, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28068799/is-in-stent-restenosis-after-a-successful-coronary-stent-implantation-due-to-stable-angina-associated-with-tg-hdl-c-ratio
#7
Harun Kundi, Ahmet Korkmaz, Ahmet Balun, Hulya Cicekcioglu, Emrullah Kiziltunc, Koray Gursel, Mustafa Cetin, Ender Ornek, Mehmet Ileri
We examined the impact of the preprocedural triglyceride (TG)/high-density lipoprotein cholesterol (HDL-C) ratio on risk of in-stent restenosis (ISR). Patients with typical anginal symptoms and/or positive treadmill or myocardial perfusion scintigraphy test results who underwent successful coronary stent implantation due to stable angina were examined; 1341 patients were enrolled. The hospital files of the patients were used to gather data. Cox regression analysis showed that the TG/HDL-C ratio was independently associated with the presence of ISR ( P < ...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28054182/takotsubo-cardiomyopathy-fdg-myocardial-uptake-pattern-in-fasting-patients-comparison-of-pet-ct-spect-and-echo-results
#8
Malgorzata Kobylecka, Monika Budnik, Janusz Kochanowski, Radoslaw Piatkowski, Marek Chojnowski, Katarzyna Fronczewska-Wieniawska, Tomasz Mazurek, Joanna Maczewska, Michał Peller, Grzegorz Opolski, Leszek Krolicki
BACKGROUND: The aim of this study was to assess the accumulation pattern of 18F-FDG in fasting patients with takotsubo cardiomyopathy (TTC) and to correlate the results with perfusion scintigraphy and echocardiography. METHODS: 18 consecutive patients with TTC were identified by clinical symptoms, cardiac catheterization, and echocardiography. Coronary angiography (CA) and transthoracic echocardiography (TTE) were performed on the day of the onset of symptoms. An assessment of myocardial perfusion (99mTc-MIBI) and glucose metabolism (18F-FDG) was performed within 18 days...
January 4, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28046834/su-f-j-91-sparing-lung-function-in-treatment-planning-using-dual-energy-tomography
#9
A Lapointe, H Bahig, K Zerouali, D Blais, J De Guise, J Carrier, E Filion, D Roberge, S Bedwani
PURPOSE: To propose an alternate treatment plan that minimizes the dose to the functional lung tissues. In clinical situation, the evaluation of the lung functionality is typically derived from perfusion scintigraphy. However, such technique has spatial and temporal resolutions generally inferior to those of a CT scan. Alternatively, it is possible to evaluate pulmonary function by analysing the iodine concentration determined via contrast-enhanced dual energy CT (DECT) scan. METHODS: Five lung cancer patients underwent a scintigraphy and a contrast-enhanced DECT scan (SOMATOM Definition Flash, Siemens)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28031508/effect-of-cable-cerclage-on-regional-blood-circulation-in-rabbits-a-scintigraphic-study
#10
Ozgur Karakoyun, Ertan Sahin, Mehmet Fatih Erol, Mesut Karıksız, Metin Küçükkaya
PURPOSE: To evaluate changes in blood circulation of the femoral cortex in rabbits using scintigraphy before and after cable cerclage alone or combined with an intramedullary Kirschner wire. METHOD: Ten New Zealand rabbits were used. For the right femur, a 2-mm-thick cable was placed around the mid-diaphyseal region and squeezed with a 400-N force and locked with a clip. For the left femur, a 1.8-mm Kirschner wire was inserted retrogradely into the medullary canal, and a 2-mm-thick cable was applied using the same technique...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/27977536/incidence-of-a-single-subsegmental-mismatched-perfusion-defect-in-single-photon-emission-computed-tomography-and-planar-ventilation-perfusion-scans
#11
Matthew Stubbs, Kenneth Chan, Helena McMeekin, Shaunak Navalkissoor, Thomas Wagner
OBJECTIVE: This study aims to compare the incidence of ventilation/perfusion (V/Q) scans interpreted as indeterminate for the diagnosis of pulmonary embolism (PE) using single-photon emission computed tomography (SPECT) versus planar scintigraphy and to consider the effect of variable interpretation of single subsegmental V/Q mismatch (SSM). METHODS: A total of 1300 consecutive V/Q scans were retrospectively reviewed. After exclusion and matching for age and sex, 542 SPECT and 589 planar scans were included in the analysis...
February 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/27951418/comparison-of-the-dwi-and-gd-eob-dtpa-enhanced-mri-on-assessing-the-hepatic-ischemia-and-reperfusion-injury-after-partial-hepatectomy
#12
COMPARATIVE STUDY
Yu Lu, Pengfei Liu, Peng Fu, Yaodong Chen, Dong Nan, Xiuhua Yang
OBJECTIVE: To compare two different imaging media, diffusion weighted imaging (DWI) with apparent diffusion coefficient (ADC) and Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI) with perfusion parameters K(trans), K(ep), and relative contrast enhancement index (RCEI), in assessing the liver function via ischemia/perfusion injury (IRI) + partial hepatectomy rat model. METHODS: Rats underwent 0, 30 and 60min of ischemia/reperfusion with 30% of hepatectomy before subjected to Gd-EOB-DTPA-enhanced MRI in addition to (99m)Tc-GSA scintigraphy...
February 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27933282/myocardial-perfusion-scintigraphy-dosimetry-optimal-use-of-spect-and-spect-ct-technologies-in-stress-first-imaging-protocol
#13
REVIEW
M Lecchi, S Malaspina, C Scabbio, V Gaudieri, A Del Sole
PURPOSE: Over the past decade, nuclear medicine experts have been seeking to minimize patient exposure to radiation in myocardial perfusion scintigraphy (MPS). This review describes the latest technological innovations in MPS, particularly with regard to dose reduction. METHODS: We searched in PubMed for original clinical papers in English, published after 2008, using the following research criteria: (dose) and ((reduction) or (reducing)) and ((myocardial) or (cardiac) or (heart)) and ((nuclear medicine) or (nuclear imaging) or (radionuclide) or (scintigraphy) or (SPET) or (SPECT))...
2016: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27897064/diagnosis-of-dementia-with-lewy-bodies-can-123-i-imp-and-123-i-mibg-scintigraphy-yield-new-core-features
#14
Fumi Sakamoto, Shinya Shiraishi, Noriko Tsuda, Mamoru Hashimoto, Seiji Tomiguchi, Manabu Ikeda, Yasuyuki Yamashita
OBJECTIVE: Since the clinical symptoms of different types of dementia frequently overlap, especially in the earlier stages at onset, it is difficult to distinguish dementia with Lewy bodies (DLB) from other neurodegenerative dementias based on their clinical manifestations alone. Nuclear medicine imaging has been reported as a high-value index for the objective evaluation and diagnosis of DLB. The aim of this study was to evaluate whether nuclear medicine imaging findings may yield core features to be added to the diagnosis of DLB...
February 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/27864568/value-of-dynamic-mri-using-the-ktrans-technique-for-assessment-of-native-kidneys-in-pre-emptive-renal-transplantation
#15
Recep Sade, Mecit Kantarci, Leyla Karaca, Aylin Okur, Hayri Ogul, Mustafa Keles, Erdem Çankaya, Arif Kursad Ayan
BACKGROUND: Different non-invasive imaging techniques such as Doppler ultrasonography and renal scintigraphy are commonly employed to assess allograft function and associated complications. However, all such methods lack sufficient specificity to discriminate between residual renal function of native kidneys. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) evaluates signal dynamics during the passage of contrast material through the renal cortex, medulla, and collecting system...
November 18, 2016: Acta Radiologica
https://www.readbyqxmd.com/read/27833327/unexpected-detection-of-pericardial-effusion-on-myocardial-perfusion-scintigraphy
#16
Dharmender Malik, Apurva Sood, Madan Parmar, Ajay Bahl, Ashwani Sood
No abstract text is available yet for this article.
October 2016: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/27804855/the-thyroid-ultrasound-and-other-imaging-procedures-in-the-pediatric-age
#17
Claudio Spinelli, Federica Guidoccio, Mariano Grosso
The purpose of this review is to provide a reappraisal of the diagnostic imaging procedures for thyroid carcinoma in pediatric patients, including thyroid ultrasound (US), ultrasound-guided fine-needle aspiration biopsy (FNAB), scintigraphy, radiological techniques (CT, MR), and PET/CT. The most frequent indication for thyroid imaging is characterization of a palpable mass in the neck or thyroid gland. Thyroid US is a first-line examination for visualizing the thyroid gland as it provides anatomic and perfusion information; on the other hand, scintigraphy mostly provides functional information but combined with some anatomic information as well...
October 31, 2016: Current Pediatric Reviews
https://www.readbyqxmd.com/read/27804069/the-impact-of-combination-of-regadenoson-and-isometric-exercise-on-image-quality-of-myocardial-perfusion-scintigraphy
#18
Quentin Ceyrat, Charles Mesguich, Lucile Janvier, Hervé Douard, Laurence Bordenave, Jean-Baptiste Pinaquy
No abstract text is available yet for this article.
November 1, 2016: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/27793103/the-sphinx-s-riddle-cardiovascular-involvement-in-autoimmune-rheumatic-disease
#19
REVIEW
Sophie Mavrogeni, George Markousis-Mavrogenis, Genovefa Kolovou
Factors leading to Cardiovascular Disease (CVD) in Autoimmune Rheumatic Diseases (ARD) include: a) atherosclerosis and macro-microvascular coronary artery disease b) pericardial, myocardial and vascular inflammation c) heart valve disease d) heart failure and e) pulmonary hypertension.Cardiology utilizes various non-invasive imaging modalities, such as rest/stress Electrocardiogram (ECG), echocardiography, nuclear imaging and more recently Cardiovascular Magnetic Resonance (CMR) to detect ischemic or inflammatory disease in ARD...
October 28, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27783160/diagnosis-of-raynaud-s-phenomenon-by-99m-tc-pertechnetate-hand-perfusion-scintigraphy-a-pilot-study
#20
Slavica Pavlov-Dolijanovic, Nebojsa Petrovic, Nada Vujasinovic Stupar, Nemanja Damjanov, Goran Radunovic, Dragan Babic, Dragana Sobic-Saranovic, Vera Artiko
We assess the usefulness of (99m)Tc-pertechnetate hand perfusion scintigraphy in patients with Raynaud's phenomenon (RP). The study population consisted of 18 patients with primary RP, 25 patients with secondary RP within systemic sclerosis (SSc), and ten healthy individuals. Gamma camera dynamic first-pass study during the first 60 s and a static scintigraphy after 5 min were recorded following a bolus injection of (99m)Tc-pertechnetate via a cubital vein. Regions of interest were drawn on the summed images around the fingers and the palmar region...
December 2016: Rheumatology International
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