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https://www.readbyqxmd.com/read/28431062/impact-of-basal-inferolateral-scar-burden-determined-by-automatic-analysis-of-99mtc-mibi-myocardial-perfusion-spect-on-the-long-term-prognosis-of-cardiac-resynchronization-therapy
#1
Itsuro Morishima, Kenji Okumura, Hideyuki Tsuboi, Yasuhiro Morita, Kensuke Takagi, Ruka Yoshida, Hiroaki Nagai, Toshiro Tomomatsu, Yoshihiro Ikai, Kazushi Terada, Takahito Sone, Toyoaki Murohara
Aims: Left-ventricular (LV) scarring may be associated with a poor response to cardiac resynchronization therapy (CRT). The automatic analysis of myocardial perfusion single-photon emission computed tomography (MP-SPECT) may provide objective quantification of LV scarring. We investigated the impact of LV scarring determined by an automatic analysis of MP-SPECT on short-term LV volume response as well as long-term outcome. Methods and Results: We studied consecutive 51 patients who were eligible to undergo 99mTc-MIBI MP-SPECT both at baseline and 6 months after CRT (ischaemic cardiomyopathies 31%)...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28394873/effects-of-percutaneous-coronary-intervention-on-viable-myocardium-and-heart-function-of-diabetic-patients-with-chronic-total-occlusion
#2
Guowei Zhou, Wenyi Yang, Liang Li
OBJECTIVE: The aim of this study was to compare the effects of percutaneous coronary intervention (PCI) on coronary chronic total occlusion patients with (DM) or without (NDM) diabetes mellitus. METHODS: A total of 78 patients were divided into DM group and NDM group according to whether the patient has DM. The results of PCI were analyzed using quantitative coronary analysis. In addition, all the patients underwent Tc-MIBI (methoxyisobutylisonitrile) single-photon emission computed tomography (SPECT) and ultrasonic cardiogram in the first week and the sixth month after PCI to evaluate PCI results...
April 7, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28392334/cystic-parathyroid-adenoma-primary-hyperparathyroidism-without-99m-tc-mibi-uptake
#3
J R Oliver Guillén, L de la Cueva Barrao, J M Miguelena Bobadilla, T Giménez Maurel, E Hernando Almudí, M C Casamayor Franco
Cystic parathyroid adenoma is a rare disease (<0.01% of all cervical masses) that associates primary hyperparathyroidism in 9% of cases. Parathyroid scintigraphy is essential for its diagnosis with uncommon false negative results. Hybrid SPECT/CT equipments allow a more accurate diagnosis. Functional cystic parathyroid adenomas are surgically treated. A case of a 64-year-old woman with diagnoses of hyperparathyroidism and a cystic parathyroid adenoma without uptake in scintigraphy is described.
April 6, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28362720/diagnostic-value-of-semiquantitative-analysis-of-99mtechnetium-methoxyisobutylisonitrile-99mtc-mibi-imaging-in-predicting-early-stage-cervical-lymph-node-metastasis-of-thyroid-carcinoma
#4
Xiao-Chun Zhu, Kai Zhou, Shi-Qing Xu, Yu-Bo Ma
BACKGROUND The aim of this study was to evaluate the value of semiquantitative analysis (SQA) of 99mTc-MIBI imaging in predicting early-stage cervical lymph node metastasis (CLNM) in thyroid carcinoma (TC). MATERIAL AND METHODS TC patients (n =106) undergoing surgical resection and histopathological examination were enrolled. All patients received 99mTc-MIBI imaging prior to surgery. P-glycoprotein (P-gp) expression was detected by PT-PCR and immunohistochemistry. With pathological results as the criterion standard, the diagnostic efficiency of 99mTc-MIBI imaging in predicting early-stage CLNM was evaluated...
March 31, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28319503/myocardial-infarction-in-a-patient-with-hypertrophic-cardiomyopathy-but-normal-coronary-arteries
#5
Shuheng Li, Xiaoxin Sun, Zongyao Zhang, Zuo-Xiang He
A 57-year-old man with a history of hypertrophic cardiomyopathy diagnosed by echocardiography experienced atypical chest pain and dyspnea for 6 months. A rest Tc-MIBI myocardial SPECT imaging and a F-FDG myocardial PET/CT imaging were performed, which showed multiple matched myocardial perfusion/metabolism defects in the left ventricle, indicating scar tissue. Surprisingly, subsequent contrast coronary angiography revealed no significant coronary artery stenosis.
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28315908/positive-99m-tc-mibi-and-the-subtraction-parathyroid-scan-are-related-to-intact-parathyroid-hormone-but-not-to-total-plasma-calcium-in-primary-hyperparathyroidism
#6
Sanja Dugonjić, Marija Šišić, Marija Radulović, Boris Ajdinović
OBJECTIVE: Primary hyperparathyroidism (pHPT) is characterised by increased parathyroid hormone (PTH) secretion and consequently increased plasma calcium. During the last few decades parathyroid scintigraphy (PS), is applied in almost all patients with pPHT before surgery and specifically before minimally invasive parathyroidectomy. The aim of this study was to find the best cut-off levels of total plasma calcium and intact PTH (iPTH) that correlate with positive technetium-99m-methoxy isobutyl isonitrile ((99m)Tc-MIBI) PS and with positive subtraction PS (SPS) in patients with pHPT and thus the positive diagnostic value of these PS...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28315905/breast-specific-gamma-camera-imaging-with-99m-tc-mibi-has-better-diagnostic-performance-than-magnetic-resonance-imaging-in-breast-cancer-patients-a-meta-analysis
#7
Aimi Zhang, Panli Li, Qiufang Liu, Shaoli Song
OBJECTIVE: This study aimed to evaluate the diagnostic role of breast-specific gamma camera imaging (BSGI) with technetium-99m-methoxy isobutyl isonitrile ((99m)Tc-MIBI) and magnetic resonance imaging (MRI) in patients with breast cancer through a meta-analysis. METHODS: Three reviewers searched articles published in medical journals before June 2016 in MEDLINE, EMBASE and Springer Databases; the references listed in original articles were also retrieved. We used the quality assessment of diagnostic accuracy studies (QUADAS) tool to assess the quality of the included studies...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28262496/incidental-meningioma-detected-by-using-99m-tc-mibi-spect-ct
#8
D Albano, L Camoni, G Bosio, F Bertagna
No abstract text is available yet for this article.
March 2, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28250856/usefulness-of-spect-ct-in-parathyroid-lesion-detection-in-patients-with-thyroid-parenchymal-99m-tc-sestamibi-retention
#9
Sang Hyun Hwang, Yumie Rhee, Mijin Yun, Jung Hyun Yoon, Jeong Won Lee, Arthur Cho
PURPOSE: Parathyroid adenoma detection with dual-phase (99m)Tc-sestamibi (MIBI) scintigraphy depends on differential MIBI washout from thyroid. However, autoimmune thyroid disease (AITD) may cause MIBI to be retained in the thyroid gland and reduce parathyroid detection. We evaluated the impact of AITD on MIBI thyroid retention and additional benefit of SPECT/CT in these patients. METHODS: Dual phase planar MIBI and SPECT/CT was performed on 82 patients. SPECT/CT was performed immediately after delayed planar scan...
March 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28242989/detection-of-thymoma-on-99mtc-mibi-scintigraphy-revisiting-the-past
#10
Girish Kumar Parida, Shambo Guha Roy, Anshul Sharma, Chetan D Patel
Although thymoma is a rare tumor, it is the most common anterior mediastinal tumor, usually affecting the adults in their fifth and sixth decade. We present a case of 68-year-old man with history of myocardial infarction, who presented to the cardiology OPD with recent onset of exertional dyspnea. On 99mTc MIBI myocardial perfusion SPECT, there was an extra cardiac accumulation of radiotracer in the anterior mediastinum just above the heart, which later was diagnosed as thymoma on histopathology.
January 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28218350/parathyroid-hyperplasia-detected-by-f-18-choline-pet-ct-negative-on-tc-99m-mibi-spect-ct-and-f-18-deoxyglucose-pet-ct-scans
#11
Anna Nocuń, Mariusz Kędra, Bogusław Stefaniak, Beta Chrapko
No abstract text is available yet for this article.
2017: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/28199935/surgical-management-of-a-giant-parathyroid-adenoma-through-minimal-invasive-parathyroidectomy-a-case-report
#12
Georgios Sahsamanis, Konstantinos Gkouzis, Stavros Samaras, Dionysios Pinialidis, Georgios Dimitrakopoulos
INTRODUCTION: Primary hyperparathyroidism is a common endocrine disorder mostly associated to parathyroid adenomas. Although those tend to be small in size, rare cases of giant parathyroid adenomas may be present. CASE PRESENTATION: A 42year old female was admitted in our department due to weakness and vague abdominal pain for the past 8 months. Preoperative laboratory exams indicated primary hyperparathyroidism as a cause to her symptomatology, with elevated values of parathormone and normal values of serum calcium...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28192245/feasibility-and-safety-of-minimally-invasive-radioguided-parathyroidectomy-using-very-low-intraoperative-dose-of-tc-99m-mibi
#13
Mostafa Mehrabibahar, Zohreh Mousavi, Ramin Sadeghi, Parvin Layegh, Masoumeh Nouri, Mehdi Asadi
BACKGROUND: Surgical resection of the abnormal parathyroid glands is the only curative treatment for primary hyperparathyroidism (PHPT). Radioguided parathyroidectomy with technetium-99m (TC-99m) sestamibi has been successfully used in patients with PHPT. This study was designed to evaluate the results of a series of patients with PHPT who underwent minimally invasive radioguided parathyroidectomy (MIRP) using very low dose (1 mCi) of TC-99m sestamibi (MIBI) without application of intraoperative parathyroid hormone (PTH) assay or frozen section analysis...
February 10, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28155191/left-ventricular-functional-parameters-by-gated-spect-myocardial-perfusion-imaging-in-a-latin-american-country
#14
Miguel Kapitan, Alvaro Beltran, Mario Beretta, Fernando Mut
BACKGROUND: There is paucity of data on left ventricular (LV) functional parameters using gated SPECT myocardial perfusion imaging (MPI) from the Latin American region. This study provides detailed information in low-risk patients both at rest and during exercise. METHODS AND RESULTS: We studied 90 patients (50 men) with a very low likelihood of coronary artery disease. Gated-SPECT MPI was performed with Tc-99m MIBI using a 2-day protocol, with 16 frames/R-R cycle...
February 2, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28154277/mitochondrial-cardiomyopathy-with-a-unique-99m-tc-mibi-123-i-bmipp-mismatch-pattern
#15
Ryosuke Tashiro, Noriko Onoue, Hiroya Rikimaru, Kenichi Tsukita, Hiroshi Fujita, Nobuhiro Yamaguchi, Takeshi Ishizuka, Yasushi Suzuki, Hiroyoshi Suzuki, Tsuyoshi Shinozaki
A 42-year-old man was referred to our hospital due to chest pain, diabetes mellitus, and sensorineural hearing loss. Transthoracic echocardiography revealed diffuse left ventricular hypokinesis. He was diagnosed with mitochondrial disease and a c.A3243G mutation was identified in his mitochondrial DNA. This case of mitochondrial cardiomyopathy demonstrated a low uptake of (123)I-BMIPP, while the uptake of (99m)Tc-MIBI was preserved. In contrast, previous reports have noted the increased uptake of(123)I-BMIPP and the decreased uptake of (99m)Tc-MIBI...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28131806/-effects-of-prolonged-endocardial-stimulation-on-left-ventricular-mechanical-synchrony-a-pilot-study-applying-gated-spect-phase-analysis-endocardial-stimulation-and-dyssynchrony
#16
Federico Ferrando-Castagnetto, Roberto Ricca-Mallada, Alejandro Vidal, Rodolfo Ferrando
OBJETIVE: To evaluate left ventricular mechanical dyssynchrony (LVMD) associated to prolonged right ventricular pacing through an innovative imaging technique, as a pilot study in Uruguay. METHODS: We performed 99mTc-MIBI gated-SPECT and phase analysis in 12 patients with pacemakers implanted at least one year before scintigraphy due to advanced atrioventricular block. Clinical data, QRS duration, rate, mode and site of pacing in right ventricle, chamber diameters, presence and extension of myocardial scar and ischemia and rest LVEF were recorded...
January 25, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28116482/is-unilateral-neck-surgery-feasible-in-patients-with-sporadic-primary-hyperparathyroidism-and-double-negative-localisation
#17
D M Scott-Coombes, J Rees, G Jones, M J Stechman
INTRODUCTION: Ultrasound and Tc99mMIBI scans are used to localise parathyroid tumours in sporadic primary hyperparathyroidism (pHPT). Intra-operative PTH (ioPTH) assay facilitates unilateral neck exploration (UNE). When both ultrasound and MIBI are negative, it is our policy to explore the left side of the neck and only proceed to bilateral neck exploration (BNE) when either a tumour is not found or when ioPTH does not fall to >50% of the highest pre-excision value. The aim of this study was to investigate the outcome of our approach to 'double negative' patients...
January 23, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28114223/defining-the-added-value-of-99mtc-mibi-spect-ct-to-conventional-cross-sectional-imaging-in-the-characterization-of-enhancing-solid-renal-masses
#18
Sara Sheikhbahaei, Christopher S Jones, Kristin K Porter, Steven P Rowe, Michael A Gorin, Alex S Baras, Phillip M Pierorazio, Mark W Ball, Takahiro Higuchi, Pamela T Johnson, Lilja B Solnes, Jonathan I Epstein, Mohamad E Allaf, Mehrbod S Javadi
PURPOSE: This study investigates whether the addition of preoperative Tc-MIBI SPECT/CT can increase the degree of diagnostic confidence in the differentiation of benign from malignant enhancing renal masses. PATIENTS AND METHODS: Patients were recruited as part of an institutional review board-approved prospective clinical trial. Forty-eight patients with clinical stage T1 solid renal masses who underwent a Tc-MIBI SPECT/CT before partial or radical nephrectomy were evaluated...
January 20, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28106465/evaluation-of-99m-tc-mibi-in-thyroid-gland-imaging-for-the-diagnosis-of-amiodarone-induced-thyrotoxicosis
#19
Junqi Wang, Ruiguo Zhang
OBJECTIVE: Amiodarone-induced thyrotoxicosis (AIT) is caused by amiodarone as a side effect of cardiovascular disease treatment. Based on the differences in their pathological and physiological mechanisms, many methods have been developed so far to differentiate AIT subtypes such as colour flow Doppler sonography (CFDS) and 24-h radioiodine uptake (RAIU). However, these methods suffer from inadequate accuracy in distinguishing different types of AITs and sometimes lead to misdiagnosis and delayed treatments...
March 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28103657/-a-case-of-primary-hyperparathyroidism-complicated-with-hypercalcemic-crisis-during-treatment-with-cinacalcet-and-improved-by-active-treatment
#20
Tomoki Takeda, Atsushi Okada, Rei Unno, Yukihiro Umemoto, Keiichi Tozawa, Takahiro Yasui
A 77-year-old man was referred to our department for surgical treatment of a right ureteral stone identified on computed tomography (CT) during intensive examination for spondylolisthesis of L4-L5. At the initial visit, performance status was 4, and renal dysfunction was identified (Cr 1.3 mg/dl). Corrected calcium level was 11.8 mg/dl, and intact parathyroid hormone level was 555 pg/ml. A CT scan showed a well-defined mass measuring 22×16×20 mm on the right side of the esophagus, along with 99mTc-MIBI uptake in the lesion...
December 2016: Hinyokika Kiyo. Acta Urologica Japonica
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