keyword
MENU ▼
Read by QxMD icon Read
search

99m Tc SPECT

keyword
https://www.readbyqxmd.com/read/28926500/occipital-lobe-and-posterior-cingulate-perfusion-in-the-prediction-of-dementia-with-lewy-body-pathology-in-a-clinical-sample
#1
Angus M J Prosser, Livia Tossici-Bolt, Christopher M Kipps
OBJECTIVE: The aim of this study was to investigate the diagnostic value of occipital lobe and posterior cingulate perfusion in predicting dopamine transporter imaging outcome using a quantitative measure of analysis. PATIENTS AND METHODS: In total, 99 patients with cognitive complaints who had undergone both technetium-99m-hexamethylpropyleneamine oxime single-photon emission computed tomography (Tc-HMPAO SPECT) and I ioflupane (I-FP-CIT also called DaTSCAN) imaging in a dementia diagnostic center were analyzed...
September 18, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28920628/fluoroquinolones-as-imaging-agents-for-bacterial-infection
#2
Syed Ali Raza Naqvi, Karl Drlica
Diagnosis of deep-seated bacterial infection is difficult, as neither standard anatomical imaging nor radiolabeled, autologous leukocytes distinguish sterile inflammation from infection. Two recent imaging efforts are receiving attention: (1) radioactive derivatives of sorbitol show good specificity with Gram-negative bacterial infections, and (2) success in combining anatomical and functional imaging for cancer diagnosis has rekindled interest in (99m)Tc-fluoroquinolone-based imaging. With the latter, computed tomography (CT) would be combined with single-photon-emission-computed tomography (SPECT) to detect (99m)Tc-fluoroquinolone-bacterial interactions...
September 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28912030/liver-function-assessment-using-technetium-99m-galactosyl-single-photon-emission-ct-ct-fusion-imaging-a-prospective-trial
#3
Takehiro Okabayashi, Yasuo Shima, Sojiro Morita, Yasuhiro Shimada, Tatsuaki Sumiyoshi, Kenta Sui, Jun Iwata, Tatsuo Iiyama
BACKGROUND: The prediction of postoperative liver function remains a largely subjective practice based on computed tomography (CT) volumetric analysis. However, the future liver volume after a hepatectomy is not the only factor that contributes to postoperative liver function and outcomes. STUDY DESIGN: In this prospective trial, 185 consecutive patients who underwent liver surgery between 2014 and 2015 were studied. Volumetric and functional rates of remnant liver were measured using technetium-99m-galactosyl human serum albumin single photon emission computed tomography/computed tomography ((99m)Tc-GSA SPECT/CT) fusion imaging to evaluate post-hepatectomy remnant liver function...
September 11, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28905206/improved-diagnosis-of-the-number-of-stenosed-coronary-artery-vessels-by-segmentation-with-scatter-and-photo-peak-window-data-for-attenuation-correction-in-myocardial-perfusion-spect
#4
Yohei Yamauchi, Yumiko Kanzaki, Masuo Hayashi, Mami Arai, Hideaki Morita, Tsuyoshi Komori, Masaaki Hoshiga, Nobukazu Ishizaka
BACKGROUND: Attenuation correction using segmentation of scatter and photo-peak window data (SSPAC) enables an evaluation of the attenuation map in a patient-specific manner without additional radiation exposure. We compared the accuracy of SSPAC and non-corrected myocardial perfusion scintigraphy methods for diagnosing the number of stenosed coronary artery vessels. METHODS AND RESULTS: We retrospectively reviewed the data from 183 consecutive patients who underwent (99m)Tc-tetrofosmin stress/rest SPECT examination and a coronary angiography within 3 months...
September 13, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28900880/characterizing-indeterminate-renal-masses-with-molecular-imaging-the-role-of-99m-tc-mibi-spect-ct
#5
REVIEW
Andrew M Reynolds, Kristin Kelly Porter
PURPOSE OF REVIEW: The majority of enhancing renal masses cannot be characterized through imaging as malignant or benign; however, such characterization could save patients from unnecessary surgery and/or biopsy and associated morbidity. Herein, we review the recent literature on the emerging use of (99m)Tc-MIBI SPECT/CT in preoperative differentiation of enhancing renal masses. RECENT FINDINGS: Recent reports have shown that (99m)Tc-MIBI SPECT/CT imaging can differentiate mitochondrial-rich, benign, or indolent renal masses from renal cell carcinoma...
September 12, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28888827/tumor-dose-response-in-yttrium-90-resin-microsphere-embolization-for-neuroendocrine-liver-metastases-a-tumor-specific-analysis-with-dose-estimation-using-spect-ct
#6
Orapin Chansanti, Younes Jahangiri, Yusuke Matsui, Akira Adachi, Yindee Geeratikun, John A Kaufman, Kenneth J Kolbeck, Jeffrey S Stevens, Khashayar Farsad
PURPOSE: To evaluate dose-response relationship in yttrium-90 ((90)Y) resin microsphere radioembolization for neuroendocrine tumor (NET) liver metastases using a tumor-specific dose estimation based on technetium-99m-labeled macroaggregated albumin ((99m)Tc MAA) single photon emission computed tomography (SPECT)-CT. MATERIALS AND METHODS: Fifty-five tumors (mean size 3.9 cm) in 15 patients (10 women; mean age 57 y) were evaluated. Tumor-specific absorbed dose was estimated using a partition model...
September 6, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28862179/influence-of-single-photon-emission-computed-tomography-spect-reconstruction-algorithm-on-diagnostic-accuracy-of-parathyroid-scintigraphy-comparison-of-iterative-reconstruction-with-filtered-backprojection
#7
Gonca Kara Gedik, Oktay Sari
BACKGROUND & OBJECTIVES: Preoperative localization of parathyroid lesions is essential for improving the results in patients with primary hyperparathyroidism. The purpose of this study was to evaluate retrospectively the value of technetium-99m (Tc-99m) methoxyisobutylisonitrile (MIBI) single photon emission computed tomography (SPECT) and to compare the diagnostic accuracy of iterative reconstruction (IR) and filtered backprojection (FBP) reconstruction algorithms about localization of parathyroid lesions...
April 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28861743/feasibility-and-safety-of-exercise-stress-testing-using-an-anti-gravity-treadmill-with-tc-99m-tetrofosmin-single-photon-emission-computed-tomography-spect-myocardial-perfusion-imaging-a-pilot-non-randomized-controlled-study
#8
Patrick Daly, Regina Kayse, Steven Rudick, Nathan Robbins, Jennifer Scheler, David Harris, Robert O'Donnell, Alok K Dwivedi, Myron C Gerson
BACKGROUND: Exercise is the AHA/ACC guideline-recommended stress modality for myocardial perfusion imaging, but many patients are unable to exercise to target heart rate on a conventional treadmill. We examined the feasibility and safety of stress imaging using an anti-gravity treadmill in patients with perceived poor exercise capacity. METHODS AND RESULTS: 49 patients were recruited for stress testing by anti-gravity treadmill (n = 29) or to a regadenoson control group (n = 20)...
August 31, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28844319/review-of-extraskeletal-activity-on-tc-99m-methylene-diphosphonate-bone-scintigraphy-and-value-of-cross-sectional-and-spect-ct-imaging-correlation
#9
REVIEW
Mohammed Bermo, Sanaz Behnia, Joanna Fair, Robert S Miyaoka, Saeed Elojeimy
Recognizing the different mechanisms and imaging appearance of extraskeletal Tc-99m methylene diphosphonate uptake enhances the diagnostic value of bone scan interpretation. In this article, we present a pictorial review of the different mechanisms of extraskeletal Tc-99m methylene diphosphonate uptake on bone scintigraphy including neoplastic, inflammatory, ischemic, traumatic, excretory, and iatrogenic. We also illustrate through case examples the added value of correlation with cross-sectional and single photon emission computed tomography and computed tomography imaging in localizing and characterizing challenging cases of extraskeletal uptake...
July 31, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28840138/evaluation-of-the-efficacy-of-standardized-uptake-value-suv-shape-scheme-for-thyroid-volume-determination-in-graves-disease-a-comparison-with-ultrasonography
#10
Yangchun Chen, Si Pei Xie, Fang He, Jianwei Chen
OBJECTIVES: In this study, we aimed to evaluate the efficacy of thyroid volume measurement using (99m)Tc pertechnetate single-photon emission computed tomography (SPECT) images, acquired by the standardized uptake value (SUV)-shape scheme designed by our expert team. METHODS: A total of 18 consecutive patients with Graves' disease (GD) were subjected to both ultrasonographic and (99m)Tc pertechnetate SPECT examinations of thyroid within a five-day interval. The volume of thyroid lobes and isthmus was measured by ultrasonography (US) according to the ellipsoid volume equation...
2017: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/28829079/technetium-99m-based-small-molecule-radiopharmaceuticals-and-radiotracers-targeting-inflammation-and-infection
#11
Torsten Kniess, Markus Laube, Frank Wüst, Jens Pietzsch
In nuclear medicine, the detection of inflamed and infected lesions is of growing interest. Extensive efforts have been made to develop radiopharmaceuticals specific for inflammation or for discriminating sterile inflammation from infection. (99m)Tc is the worldwide most widely used radioisotope for SPECT imaging. The scope of this review article is to give an overview on the development of (99m)Tc-labelled small molecule radiotracers targeting inflammatory lesions and infections, ranging from their radiopharmacological evaluation to examples of their clinical applications...
August 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28827905/clinical-utility-of-tc-99m-mibi-spect-ct-for-preoperative-localization-of-parathyroid-lesions
#12
Zeynep Gozde Ozkan, Seher Nilgun Unal, Serkan Kuyumcu, Yasemin Sanli, Mehmet Fatih Gecer, Beyza Ozcinar, Yasemin Senyurek Giles, Yesim Erbil
We aimed to demonstrate the role of SPECT/CT in preoperative localization of parathyroid lesions in patients with hyperparathyroidism who had technetium-99m (Tc-99m) methoxyisobutylisonitrile (MIBI) dual-phase parathyroid scintigraphy. We evaluated retrospectively the scintigraphic data of 103 patients who had parathyroidectomy after Tc-99m MIBI dual-phase parathyroid scintigraphy with SPECT/CT. The planar and SPECT/CT images were evaluated separately to determine their efficacy in localizing parathyroid lesions...
August 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28823060/cardiac-death-in-patients-with-left-ventricular-aneurysm-remodeling-and-myocardial-viability-by-gated-99m-tc-mibi-spect-and-gated-18-f-fdg-pet
#13
Weixue Wang, Xiang Li, Congna Tian, Shihua Zhao, Marcus Hacker, Xiaoli Zhang
(1) To evaluate the prognostic value of LV remodeling parameters in patients with LV aneurysm by gated SPECT (GSPECT), gated PET (GPET) and CMR; (2) to evaluate the impact of myocardial viability and LV remodeling on the long-term cardiac survival in patients with LV aneurysm. One hundred and twenty-six consecutive patients underwent GPET, GSPECT and CMR within two weeks, with a mean follow-up of 3.9 ± 1.5 years. End-diastolic volume (EDV, mL) and end-systolic volume (ESV, mL) measured by GPET, GSPECT and CMR and corrected for BSA; EDVI and ESVI were calculated...
August 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28819936/introducing-navigation-during-melanoma-related-sentinel-lymph-node-procedures-in-the-head-and-neck-region
#14
Gijs H KleinJan, Baris Karakullukçu, W Martin C Klop, Thijs Engelen, Nynke S van den Berg, Fijs W B van Leeuwen
BACKGROUND: Intraoperative sentinel node (SN) identification in patients with head-and-neck malignancies can be challenging due to unexpected drainage patterns and anatomical complexity. Here, intraoperative navigation-based guidance technologies may provide outcome. In this study, gamma camera-based freehandSPECT was evaluated in combination with the hybrid tracer ICG-(99m)Tc-nanocolloid. MATERIALS AND METHODS: Eight patients with melanoma located in the head-and-neck area were included...
August 17, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28803178/treatment-of-unstable-thoracolumbar-fractures-does-fracture-level-fixation-accelerate-the-bone-healing
#15
Zühtü Özbek, Emre Özkara, Hasan Önner, Gültekin Baş, İpek Canan Erman, Hülya Özen, Emre Entok, Ali Arslantaş
OBJECTIVE: This study aimed to investigate the effect of fusion on short segment including fractured level (SSIFL) and long segment (LS) transpedicular fixation after acute thoracolumbar junction (TLJ) burst fractures. The two-year clinical and radiological follow-up results of the two groups were also compared. METHODS: Seventy-four patients were randomized into one of two groups: SSIFL (n: 39) or LS (n: 35). The SSIFL group included one level above and one level below, including the fracture level, while the LS group included two levels above and two levels below, excluding the fracture level, for the transpedicular fixation...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28798229/role-of-technetium-99m-methylene-diphosphonate-spect-ct-in-the-detection-of-sacroiliitis-in-patients-with-spondyloarthropathy-comparison-with-clinical-markers-and-mri
#16
Rahul V Parghane, Baljinder Singh, Aman Sharma, Harmandeep Singh, Paramjit Singh, Anish Bhattacharya
Rationale: To evaluate the role of (99m)Tc-MDP SPECT/CT for the detection of sacroiliitis in spondyloarthopathies (SpA) and comparison with clinical markers and MRI. Methods: A total of 155 diagnosed patients (83M : 72 F; mean age 35.80±12.40 years; range 18-60 years ) with SpA as per the European Spondyloarthropathy Study Group criteria (ESSG) criteria were prospectively included All the patients were subjected to clinical evaluation (using BASDAI scoring), ESR, CRP levels, planar (99m)Tc MDP bone scintigraphy, hybrid SPECT/CT and MRI of the pelvic region...
August 10, 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28798033/a-prospective-study-comparing-99m-tc-hdp-planar-bone-scintigraphy-and-whole-body-spect-ct-with-18-f-fluoride-pet-ct-and-18-f-fluoride-pet-mri-for-diagnosing-bone-metastases
#17
Johan Löfgren, Jann Mortensen, Sine Hvid Rasmussen, Claus Madsen, Annika Loft, Adam Espe Hansen, Peter Oturai, Karl Erik Jensen, Mette Louise Mørk, Michala Reichkendler, Liselotte Højgaard, Barbara M Fischer
We prospectively evaluate and compare the diagnostic performance of (99m)Tc-HDP planar bone scintigraphy (pBS), (99m)Tc-HDP SPECT/CT, (18)F-NaF PET/CT and (18)F-NaF PET/MRI for the detection of bone metastases. Methods: 117 patients with histologically proven malignancy referred for clinical pBS were prospectively enrolled. pBS and whole-body SPECT/CT were performed followed by (18)F-NaF PET/CT within 9 days. (18)F-NaF PET/MRI was also performed in 46 patients. A "truth panel" including clinical follow-up served as standard of reference...
August 10, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28797815/structure-of-a-pectic-polysaccharide-from-pseudostellaria-heterophylla-and-stimulating-insulin-secretion-of-ins-1-cell-and-distributing-in-rats-by-oral
#18
Jinlong Chen, Wensheng Pang, Yongjun Kan, Li Zhao, Zhaodong He, Wentao Shi, Bin Yan, Hong Chen, Juan Hu
A water-soluble, pectic polysaccharide named as 0.5MSC-F isolated from Pseudostellaria Heterophylla with a molecular weight of 4.8×10(4) Da that was composed of rhamnose, galactose, arabinose, and galacturonic acid which the major monosaccharide contents range up to 63.20%. Where the main chain was consists of 1,4-linked galacturonic acid and a small amount of 1,2-linked rhamnose was embedded into backbone to connect alternative galacturonic acid in the form of Rhamnogalacturonan I (RG-I) structure. 1, 5-linked arabinose through C-4 of 1, 2-linked rhamnose, another 1, 3 or 1,6-linked galactose through C-4 of 1, 2-linked rhamnose, was interconnected to branch chain...
August 7, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28776314/a-combined-static-dynamic-single-dose-imaging%C3%A2-protocol-to-compare-quantitative-dynamic-spect-with-static-conventional-spect
#19
Maria Sciammarella, Uttam M Shrestha, Youngho Seo, Grant T Gullberg, Elias H Botvinick
BACKGROUND: SPECT myocardial perfusion imaging (MPI) is a clinical mainstay that is typically performed with static imaging protocols and visually or semi-quantitatively assessed for perfusion defects based upon the relative intensity of myocardial regions. Dynamic cardiac SPECT presents a new imaging technique based on time-varying information of radiotracer distribution, which permits the evaluation of regional myocardial blood flow (MBF) and coronary flow reserve (CFR). In this work, a preliminary feasibility study was conducted in a small patient sample designed to implement a unique combined static-dynamic single-dose one-day visit imaging protocol to compare quantitative dynamic SPECT with static conventional SPECT for improving the diagnosis of coronary artery disease (CAD)...
August 3, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28776313/a-new-era-in-gated-myocardial-perfusion-imaging-feasibility-of-data-driven-cardiac-contraction-gating-with-multiple-pinhole-czt-spect
#20
Doumit Daou, Rémy Sabbah, Carlos Coaguila, Yousef Alattar, Hatem Boulahdour
BACKGROUND: We previously validated the use of a data-driven cardiac respiratory-motion (RM) correction method (REGAT) applicable to CZT SPECT myocardial perfusion imaging (MPI). In this study, we adapted the same process used with REGAT for RM to generate data-driven cardiac contraction triggers and corresponding cardiac contraction-gated SPECT studies (GSPECT-DD). We aimed to study its feasibility and compare its performances to GSPECT studies generated with ECG monitor-based triggers (GSPECT-ECG)...
August 3, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
keyword
keyword
93174
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"