keyword
MENU ▼
Read by QxMD icon Read
search

Technetium 99m

keyword
https://www.readbyqxmd.com/read/27924180/magnetic-resonance-spectroscopy-and-single-photon-emission-computed-tomography-in-the-evaluation-of-cerebral-tumors-a-case-report
#1
Ioannis Siasios, Varvara Valotassiou, Eftychia Kapsalaki, Ioannis Tsougos, Panagiotis Georgoulias, Aggeliki Fotiadou, Maria Ioannou, Georgios Koukoulis, Vassilios Dimopoulos, Kostas Fountas
In their daily clinical practice, physicians have to confront diagnostic dilemmas which cannot be resolved by the application of only one imaging technique. In this case report, we present a 66-year-old woman who was admitted to our institution for the surgical resection of a recently diagnosed brain tumor. The patient had a history of epileptic seizures and was hospitalized in the past for anti-phospholipid syndrome related to a non-Hodgkin lymphoma in remission. Magnetic resonance imaging (MRI) examination revealed an enhancing right parasagittal lesion with significant edema suggestive of a high grade glioma...
January 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27924061/the-relationship-between-serum-fibrosis-markers-and-restrictive-ventricular-filling-in-patients-with-heart-failure-with-reduced-ejection-fraction-a-technetium-99m-radionuclide-ventriculography-study
#2
Yen-Tin Lin, Yen-Hung Lin, Xue-Ming Wu, Chi-Lun Ko, Ruoh-Fang Yen, Ying-Hsein Chen, Ron-Bin Hsu, Chi-Ming Lee, Shoei-Shen Wang, Ming-Fong Chen, Yen-Wen Wu
Myocardial fibrosis leads to a restrictive diastolic filling pattern of the left ventricle which is associated with a poor prognosis in patients with heart failure. We investigated the relationship between cardiac fibrosis and restrictive filling pattern of the left ventricle measured by Tc99m left ventriculography in patients with chronic symptomatic heart failure. Serum cardiac extracellular matrix markers including type I and III aminoterminal propeptide of procollagen (PINP and PIIINP), matrix metalloproteinase-2,9 (MMP-2,9), and tissue inhibitor of MMP-1 (TIMP-1) were analyzed...
December 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27920268/clinical-value-of-perfusion-abnormalities-of-brain-on-technetium-99m-hmpao-single-photon-emission-computed-tomography-in-children-with-sydenham-chorea
#3
Sara Maria Delle Acque Giorgio, Maria Grazia Caprio, Flavia Galante, Giustina Russo, Alfonso Romano, Emilia Vergara, Maria Alessio, Alberto Cuocolo
We evaluated whether perfusion brain abnormalities by single-photon emission computed tomography (SPECT) imaging improves diagnostic and prognostic assessment in Sydenham chorea. Twenty-three children with acute autoimmune chorea underwent technetium-99m hexamethylpropyleneamine oxime brain SPECT imaging. In 16 children, SPECT was repeated during the follow-up. A pattern of basal ganglia hyperperfusion was observed in 20 (87%) patients. In 4 of 10 patients with generalized chorea, perfusion was comparable in right and left striatum and right and left thalamus...
December 5, 2016: Journal of Child Neurology
https://www.readbyqxmd.com/read/27909351/new-precipitation-method-for-isolation-of-99m-tc-from-irradiated-100-mo-target
#4
M Gumiela, J Dudek, A Bilewicz
Technetium-99m is the most widely used radionuclide in nuclear medicine. This work describes the method to separate (99m)Tc from irradiated (100)Mo target. For this purpose we utilized formation of ammonium molybdenum phosphate (AMP) and have optimized the four parameters of the process. The proposed process is promising and allows fast separation of macroamounts of molybdenum without co-precipitation of (99m)Tc. The concentration of molybdenum in solution after precipitation of AMP was lower than 300 µg ml(-1)...
2016: Journal of Radioanalytical and Nuclear Chemistry
https://www.readbyqxmd.com/read/27904855/multiple-endocrine-neoplasia-type-1-with-anterior-mediastinal-parathyroid-adenoma-successful-localization-using-tc-99m-sestamibi-spect-ct
#5
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/27894166/the-detection-of-sentinel-lymph-nodes-in-laparoscopic-surgery-for-uterine-cervical-cancer-using-99m-technetium-tin-colloid-indocyanine-green-and-blue-dye
#6
Tomohito Tanaka, Yoshito Terai, Keisuke Ashihara, Satoshi Tsunetoh, Hiroyuki Akagi, Takashi Yamada, Masahide Ohmichi
OBJECTIVE: Our objective was to determine the feasibility and detection rates and clarify the most effective combination of injected tracer types for sentinel lymph node (SLN) mapping in uterine cervical cancer in patients who have undergone laparoscopic surgery or neoadjuvant chemotherapy (NAC). METHODS: A total of 119 patients with cervical cancer underwent SLN biopsy at radical hysterectomy using three types of tracers. The various factors related to side-specific detection rate, sensitivity, and false negative (FN) rate were analyzed...
November 1, 2016: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/27884683/yttrium-90-radioembolization-with-resin-microspheres-without-routine-embolization-of-the-gastroduodenal-artery
#7
Thomas J Ward, John D Louie, Daniel Y Sze
PURPOSE: To evaluate safety of resin microsphere radioembolization (RE) without prophylactic embolization of the gastroduodenal artery (GDA). MATERIALS AND METHODS: Between July 2013 and April 2015, all patients undergoing RE with resin microspheres for liver-dominant metastatic disease were treated without routine embolization of the GDA. Selective embolization of distal hepaticoenteric vessels was performed if identified by digital subtraction angiography, cone-beam computed tomography, or technetium-99m macroaggregated albumin scintigraphy...
November 21, 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27883206/diffuse-pulmonary-extramedullary-hematopoiesis-in-myelofibrosis-diagnosed-with-technetium-99m-sulfur-colloid-bone-marrow-scintigraphy-and-single-photon-emission-computerized-tomography-ct
#8
Ming Yang, Michael Roarke
No abstract text is available yet for this article.
November 24, 2016: American Journal of Hematology
https://www.readbyqxmd.com/read/27882463/the-use-of-technetium-99m-for-intravital-tracing-of-transplanted-multipotent-stromal-cells
#9
D N Silachev, A K Kondakov, I A Znamenskii, Yu B Kurashvili, A V Abolenskaya, N R Antipkin, T I Danilina, V N Manskikh, M V Gulyaev, Yu A Pirogov, E Yu Plotnikov, D B Zorov, G T Sukhikh
We studied the possibility of in vivo tracing of multipotent mesenchymal stromal cells labeled with a radiophermaceutic preparation based on metastable isotope Technetium-99m and injected to rats with modeled traumatic brain injury. Accumulation of labeled cells occurred primarily in the liver and lungs. The cells distribution in internal organs greatly varied depending on the administration route. Cell injection into the carotid artery led to their significant accumulation in the damaged brain hemisphere, while intravenous injection was followed by diffuse cell distribution in all brain structures...
November 23, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27874119/-99m-tc-conjugated-manganese-based-mesoporous-silica-nanoparticles-for-spect-ph-responsive-mri-and-anti-cancer-drug-delivery
#10
Hongbo Gao, Xiaohang Liu, Wei Tang, Dechao Niu, Bingni Zhou, Hua Zhang, Wei Liu, Bingxin Gu, Xiaobao Zhou, Yingying Zheng, Yiyun Sun, Xiaobo Jia, Liangping Zhou
In recent decades, hybrid imaging techniques that exploit the advantages of multiple imaging technologies have aroused extensive attention due to the deficiencies of single imaging modes. Along with the development of single photon emission computed tomography-magnetic resonance imaging (SPECT-MRI), it is currently necessary to develop a series of dual probes that can combine the outstanding sensitivity of SPECT with the high spatial resolution of MRI. Herein, the commonly used technetium-99 ((99m)Tc) was labelled on the surface of manganese oxide-based mesoporous silica nanoparticles (MnOx-MSNs) for use in SPECT-MRI dual-modal imaging...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27867904/incremental-role-of-18-f-fluorocholine-pet-ct-over-technetium-99m-labeled-mibi-scan-in-hyperparathyroidism
#11
Abhishek Behera, Nishikant Avinash Damle
No abstract text is available yet for this article.
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27866122/synthesis-characterization-and-radiolabeling-of-folic-acid-modified-nanostructured-lipid-carriers-as-a-contrast-agent-and-drug-delivery-system
#12
Eser Ucar, Serap Teksoz, Cigdem Ichedef, Ayfer Yurt Kilcar, E Ilker Medine, Kadir Ari, Yasemin Parlak, B Elvan Sayit Bilgin, Perihan Unak
Nanostructured lipid carriers (NLCs) are the new generation of solid lipid drug delivery systems. Their suitability as contrast agents for gamma scintigraphy is an attracting major attention. The aim of current study was to prepare surface modified nanostructured lipid carrier system for paclitaxel (PTX) with active targeting and imaging functions. In accordance with the purpose of study, PTX loaded nanostructured lipid carriers (NLCs) prepared, modified with a folate derivative and radiolabeled with technetium-99m tricarbonyl complex ((99m)Tc(CO)3(+))...
January 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/27862213/synthesis-and-preliminary-biological-evaluation-of-a-99m-tc-chlorambucil-derivative-as-a-potential-tumor-imaging-agent
#13
Jianguo Lin, Ling Qiu, Gaochao Lv, Ke Li, Wei Wang, Guiqing Liu, Xueyu Zhao, Shanshan Wang
Technetium-99 m-based radiopharmaceuticals have been used widely as diagnostic agents in the nuclear medicine. Chlorambucil (CLB) as one typical alkylating drug exhibits excellent inhibition effects against many human malignancies. In order to develop and explore a novel potential imaging agent for early diagnosis of tumors, tricarbonyl technetium-99 m and rhenium complexes based on the tridentate ligand dipicolylamine (DPA) bound to the chlorambucil pharmacophore were designed and synthesized: (99m) Tc-DPA-CLB (3) and Re-DPA-CLB (4)...
November 16, 2016: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/27853721/look-different-effect-of-radiation-hormesis-on-the-survival-rate-of-immunosuppressed-mice
#14
M Alavi, S Taeb, M A Okhovat, M Atefi, F Negahdari
BACKGROUND: Hormesis is defined as the bio-positive response of something which is bio-negative in high doses. In the present study, the effect of radiation hormesis was evaluated on the survival rate of immunosuppressed BALB/c mice by Cyclosporine A. MATERIAL AND METHODS: We used 75 consanguine, male, BALB/c mice in this experiment. The first group received Technetium-99m and the second group was placed on a sample radioactive soil of Ramsar region (800Bq) for 20 days...
September 2016: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/27851658/interobserver-agreement-on-cortical-tracer-transit-in-99mtc-mag3-renography-applied-to-congenital-hydronephrosis
#15
Ana Isabel Santos, Liliana Violante, Susana Carmona, Ana Prata, Margarida Rodrigues Victor, Joaquim G Santos, Joaquim Araújo Sequeira, Marta Alves, Ana Luísa Papoila, Amy Piepsz
OBJECTIVE: This study aims to evaluate interobserver agreement on visual analysis of technetium-99m mercaptoacetyltriglycine (Tc-MAG3) renal tissue transit used for the evaluation of antenatal hydronephrosis. MATERIALS AND METHODS: Thirty-eight Tc-MAG3 diuretic renograms were retrospectively collected between 1 and 31 December 2015. The 1-min reframed images were presented to four nuclear medicine consultants and to two nuclear medicine residents, one in the first year of the training program and the others in their fourth and final year...
November 15, 2016: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/27847657/rare-case-of-an-epithelial-cyst-in-an-intrapancreatic-accessory-spleen-treated-by-robot-assisted-spleen-preserving-distal-pancreatectomy
#16
Willemijn P M van Dijck, Vincent P Groot, Lodewijk A A Brosens, Jeroen Hagendoorn, Inne H M Borel Rinkes, Maarten S van Leeuwen, I Quintus Molenaar
Epithelial cyst in an intrapancreatic accessory spleen (ECIPAS) is exceedingly rare with only 57 cases reported since the first publication in 1980. Comprehensive clinical and diagnostic features remain to be clarified. We present a case of ECIPAS in a 21-year-old Philippine woman who was admitted with right upper quadrant abdominal pain. A cystic lesion in the pancreatic tail was discovered and evaluated by computed tomography and magnetic resonance images. Based on clinical and radiological features a solid pseudopapillary neoplasm was suspected...
2016: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/27837538/techniques-for-loading-technetium-99m-and-rhenium-186-188-radionuclides-into-preformed-liposomes-for-diagnostic-imaging-and-radionuclide-therapy
#17
Beth Goins, Ande Bao, William T Phillips
Liposomes can serve as carriers of radionuclides for diagnostic imaging and therapeutic applications. Herein, procedures are outlined for radiolabeling liposomes with the gamma-emitting radionuclide, technetium-99m ((99m)Tc), for noninvasive detection of disease and for monitoring the pharmacokinetics and biodistribution of liposomal drugs, and/or with therapeutic beta-emitting radionuclides, rhenium-186/188 ((186/188)Re), for radionuclide therapy. These efficient and practical liposome radiolabeling methods use a post-labeling mechanism to load (99m)Tc or (186/188)Re into preformed liposomes prepared in advance of the labeling procedure...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27833326/incidental-finding-of-sternal-cleft-on-technetium-99m-methylene-diphosphonate-bone-scan-appearing-as-a-necklace
#18
Madhuri Shimpi Mahajan, Sudeshna Maitra, Natasha Singh
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/27833325/incidental-finding-of-technetium-99m-methylene-diphosphonate-uptake-in-acute-cerebral-infarct
#19
Jayanta Das, Soumendranath Ray
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/27833310/a-novel-approach-of-67-gallium-citrate-three-phase-bone-scan-to-diagnose-bone-infection-a-report-of-three-cases
#20
Kush Kumar
OBJECTIVES: 67-Gallium-citrate three-phase bone scan (Ga-TPBS), a new approach for the diagnosis of bone infection is evaluated. The interpretation of TPBS is based on the normal physiological vascular endothelial-related response noted in infection. MATERIALS AND METHODS: Three cases of suspected bone infection as determined by clinical, laboratory, and radiological examinations were further subjected to conventional technetium-99m-TPBS (Tc-99m-TPBS) and Ga-TPBS...
October 2016: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
keyword
keyword
70032
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"