keyword
MENU ▼
Read by QxMD icon Read
search

Technetium

keyword
https://www.readbyqxmd.com/read/29452618/radionuclide-imaging-of-infection-and-inflammation-in-children-a-review
#1
REVIEW
Marguerite T Parisi, Jeffrey P Otjen, A Luana Stanescu, Barry L Shulkin
With the exception of radiolabeled monoclonal antibodies, antibody fragments and radiolabeled peptides which have seen little application in the pediatric population, the nuclear medicine imaging procedures used in the evaluation of infection and inflammation are the same for both adults and children. These procedures include (1) either a two- or a three-phase bone scan using technetium-99m methylene diphosphonate; (2) Gallium 67-citrate; (3) in vitro radiolabeled white blood cell imaging (using 111 Indium-oxine or 99m Technetium hexamethyl-propylene-amine-oxime-labeled white blood cells); and (4) hybrid imaging with 18 F-FDG...
March 2018: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/29448165/y90-radioembolization-dosimetry-using-a-simple-semi-quantitative-method-in-intrahepatic-cholangiocarcinoma-glass-versus-resin-microspheres
#2
Nariman Nezami, Nima Kokabi, Juan C Camacho, David M Schuster, Minzhi Xing, Hyun S Kim
INTRODUCTION: There are two different types of Y90 Microspheres, glass and resin, in the market for Y90 radioembolization (Y90-RE). This study aimed to investigate the dose of radiation delivered through glass vs. resin-based Y90-RE to intrahepatic cholangiocarcinoma (ICC). METHODS: In this retrospective study, 10 patients with ICC underwent Y90-RE, five underwent glass (Glass group) and other 5 resin (Resin group) microspheres. Technetium-99m macro-aggregated albumin (Tc-99m MAA) shunt study was performed two weeks before Y90-RE...
January 16, 2018: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29445780/actinide-based-mofs-a-middle-ground-in-solution-and-solid-state-structural-motifs
#3
Ekaterina A Dolgopolova, Allison M Rice, Natalia B Shustova
In this review, we highlight how recent advances in the field of actinide structural chemistry of metal-organic frameworks (MOFs) could be utilized towards investigations relative to efficient nuclear waste administration, driven by the interest towards development of novel actinide-containing architectures as well as concerns regarding environmental pollution and nuclear waste storage. We attempt to perform a comprehensive analysis of more than 100 crystal structures of the existing An (U,Th)-based MOFs to establish a correlation between structural density and wt% of actinide and bridge structural motifs common for natural minerals with ones typically observed in the solution chemistry of actinides...
February 15, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29437030/preliminary-human-radiation-dose-estimates-of-pet-renal-agents-para-18f-fluorohippuric-acid-and-ortho-124i-iodohippuric-acid-from-rat-biodistribution-data
#4
Maryam Papie, Sean Kitson, Luigi Mansi, Hariprasad Gali, Mohsen Cheki
Para-18F-fluorohippurate (18F-PFH) and ortho-124I-iodohippurate (124I-OIH) were recently identified as potential radiotracers suitable for conducting renography using positron emission tomography (PET). The aim of this work was to estimate preliminary human-equivalent internal radiation dose of 18F-PFH and 124I-OIH using the biodistribution data reported in healthy rats. The results were compared with the absorbed dose data of technetium-99m-mercaptoacetyltriglycine (99mTc-MAG3) as documented in the International Commission on Radiological Protection (ICRP) publication 80...
February 12, 2018: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/29432342/long-lasting-intense-bone-tracer-activity-at-the-sites-of-collagen-injection
#5
Ling Wang, Xiaona Jin, Fang Li
Collagen injection has been used as dermal filler in plastic and cosmetic surgery. A technetium Tc methylene diphosphonate bone scintigraphy was performed in a 47-year-old woman as part of the breast cancer evaluation. The images showed intense methylene diphosphonate activity on both sides of the frontal head, where she received collagen injection 1 year prior. The activity was visualized again in all 3 follow-up bone scans over the subsequent 3 years.
February 9, 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29430113/comparison-of-the-f-20-and-f-15-diuresis-technetium-99m-diethylenetriaminepentacetate-renography-protocols-for-diagnosis-of-ureteropelvic-junction-obstruction-in-adult-patients-with-hydronephrosis
#6
Majhi Tapas Kumar, Singh Hanuwant
Introduction: Hydronephrosis (HDN) in adults is a common presentation and may be due to congenital ureteropelvic junction obstruction. Diuresis renography is the method of choice for differentiating a dilated unobstructed urinary system from a true obstruction. The aim of this study was to compare the F+20 protocol with F-15 protocol and see whether this new protocol can reduce inconclusive results. Materials and Methods: It was a prospective, comparative study included 51 adult patients of primary HDN...
January 2018: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29412229/influence-of-biomaterials-on-scintigraphic-diagnosis-of-periprosthetic-infections-ceftizoxime-99m-technetium-model
#7
Luiz Eduardo Moreira Teixeira, Bruno Jannotti Pádua, André Moreira Castilho, Ivana Duval de Araújo, Marco Antônio Percope de Andrade, Valbert Nascimento Cardoso, Simone Odília Diniz, Jefferson Soares Leal, Isabella Kuniko Takenaka
PURPOSE: To compare the influence of two metallic implants in the diagnosis of periprosthetic infection using 99m technetium-labeled ceftizoxime. METHODS: Twenty rats were randomly divided into four groups, which received sterile and contaminated titanium and stainless steel implants. After 3 weeks, scintilographic images were obtained using a gamma chamber. Radioactivity counts were obtained for the region of interest (ROI) on the operated and non-operated paws...
January 2018: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29404934/biochemical-and-pathologic-factors-affecting-technetium-99m-methoxyisobutylisonitrile-imaging-results-in-patients-with-primary-hyperparathyroidism
#8
Aysenur Ozderya, Sule Temizkan, Aylin Ege Gul, Sule Ozugur, Kenan Cetin, Kadriye Aydin
OBJECTIVE: Technetium 99 m methoxyisobutylisonitrile (Tc-99m MIBI) scintigraphy represents the most commonly utilized imaging modality for the detection of the diseased gland in patients with primary hyperparathyroidism (PHPT). In this study, we aimed to identify potential biological factors with an impact on MIBI sensitivity. METHODS: A total of 147 patients with surgically confirmed parathyroid adenomas were assessed retrospectively. Data including medical history, biochemical and hormonal measurements, cervical US, Tc-99m MIBI scans as well as pathology reports were retrieved and recorded...
February 5, 2018: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29399551/development-of-nanoemulsion-based-gel-loaded-with-phytoconstituents-for-the-treatment-of-urinary-tract-infection-and-in-vivo-biodistribution-studies
#9
Atinderpal Kaur, Sonal Gupta, Amit Tyagi, Rakesh Kumar Sharma, Javed Ali, Reema Gabrani, Shweta Dang
Purpose: A nanoemulsion based gel containing Polyphenon 60 (P60) and cranberry (CRB) has been developed to deliver via intravaginal route for the treatment of urinary tract infection. Methods: Polyphenon 60 and cranberry were loaded in a single nanoemulsion gel (NBG) by ultra-sonication method and characterized for particle size, rheological properties, in vitro release and growth curve analysis. P60+CRB NBG were radiolabelled using technetium pertechnetate (99mTc) to perform in vivo pharmacokinetic studies in animals...
December 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29398968/usefulness-of-splenic-scintigraphy-in-differentiating-splenosis-and-malignancy-on-gallium-68-1-4-7-10-tetraazacyclododecane-1-4-7-10-tetraacetic-acid-nai3-octreotide
#10
Stijn Van Hecke, Tim Van Den Wyngaert, Bart Op De Beeck, Sigrid Stroobants
Somatostatin receptor (SSTR) imaging with gallium 68 (Ga-68) 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA)-peptide positron emission tomography/computed tomography (PET/CT) has been introduced in clinical routine for the diagnosis and staging of neuroendocrine tumors (NETs) with high SSTR expression. Although it has high sensitivity for NETs, there are some known diagnostic pitfalls one should be aware of. We present a case of suspected NET where Ga-68 DOTA-NaI3-octreotide (NOC) PET/CT showed several abdominal lesions with high SSTR expression suggesting malignancy...
January 2018: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29398966/99m-technetium-sestamibi-uptake-in-a-gastric-schwannoma
#11
Mohamed Shawgi, Tamir Ali, Matthew Scott, George Petrides
We report the case of a 74-year-old woman with primary hyperparathyroidism who underwent 99m-technetium-sestamibi single photon emission computed tomography-computed tomography for preoperative localization of parathyroid adenoma. Unexpected focal sestamibi uptake was observed at a 5 cm submucosal tumor arising from the greater curve of the stomach. The patient underwent partial gastrectomy and the histological and immunohistochemical findings were consistent with the diagnosis of gastric schwannoma.
January 2018: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29397911/feasibility-of-a-streamlined-imaging-protocol-in-technetium-99m-tektrotyd-somatostatin-receptor-spect-ct
#12
H Al-Chalabi, A Cook, C Ellis, C N Patel, A F Scarsbrook
AIM: To assess the feasibility and efficacy of a streamlined single time-point 99mTc-HYNIC-Tyr3-octreotide (Tektrotyd) somatostatin receptor scintigraphy (SRS) protocol to differentiate pathological uptake by neuroendocrine tumours (NETs) from physiological activity. METHODS AND MATERIALS: Tektrotyd imaging in 50 consecutive patients with NETs was reviewed retrospectively. Imaging was independently assessed by two experienced reporters with dual-certification in radiology and nuclear medicine and agreed in consensus...
February 1, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29391211/physiological-uptake-and-retention-of-radiolabeled-resveratrol-loaded-gold-nanoparticles-99mtc-res-aunp-in-colon-cancer-tissue
#13
Rozy Kamal, D K Dhawan, Vijayta D Chadha
When tagged with a suitable radionuclide, the cancer targeting properties of trans-resveratrol could be utilized to locate cancerous sites in the body using radionuclide imaging technique. However, the polyphenol due to its rapid and extensive metabolism exhibits low bioavailability in vivo. The study was designed to enhance the cancer targeting efficacy of radiolabeled resveratrol using nano-based technology. Technetium-99m labeled resveratrol loaded gold nanoparticles (Res-AuNP) were synthesized, characterized and evaluated for their cancer targeting efficacy in HT29 colon cancer cells and in animal cancer model...
January 29, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29389772/uncomplicated-90y-selective-internal-radio-therapy-in-a-patient-with-hepatocellular-carcinoma-after-arterial-and-portal-vein-embolizations
#14
Jochem van der Pol, Judith de Vos-Geelen, Jan Bucerius, Cristina Mitea, Christiaan van der Leij
Selective internal radio therapy (SIRT) with Y-glass microspheres was performed in a cirrhotic patient with hepatocellular carcinoma (Barcelona Clinic Liver Cancer stage C) after arterial coil embolization for treatment of intratumoral hemorrhage and planned preoperative right portal vein embolization. Three technetium Tc macro-albumin-aggregate injections were needed to optimize intralesional uptake without extrahepatic deposition. The consecutive SIRT treatment was uncomplicated with a remarkable result.
March 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29384833/a-review-of-paediatric-administered-radiopharmaceutical-activities-to-determine-compliance-with-prescription-guidelines
#15
Giovanni Bibbo, Victoria Sigalas, Ian Kirkwood
OBJECTIVE: Attempts are underway to standardize paediatric administered activities, but equally important is knowing the actual activities administered to patients. In this work, paediatric administered activities are reviewed to determine compliance with the institution-prescribed guidelines. PATIENTS AND METHODS: Paediatric administered activities for common studies at our institution, August 2011 to January 2017, have been analysed to determine their deviations from the set guideline tolerance of 10% from prescribed activities...
March 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29383984/preoperatively-reduced-cerebrovascular-contractile-reactivity-to-hypocapnia-by-hyperventilation-is-associated-with-cerebral-hyperperfusion-syndrome-after-arterial-bypass-surgery-for-adult-patients-with-cerebral-misery-perfusion-due-to-ischemic-moyamoya-disease
#16
Shinpei Sato, Daigo Kojima, Yasuyoshi Shimada, Jun Yoshida, Kentaro Fujimato, Shunrou Fujiwara, Masakazu Kobayashi, Yoshitaka Kubo, Kenji Yoshida, Kazunori Terasaki, Shouta Tsutsui, Kenya Miyoshi, Kuniaki Ogasawara
The present study examined whether preoperatively reduced cerebrovascular contractile reactivity to hypocapnia by hyperventilation is associated with development of cerebral hyperperfusion syndrome after arterial bypass surgery for adult patients with cerebral misery perfusion due to ischemic moyamoya disease. Among 65 adult patients with ischemic moyamoya disease, 19 had misery perfusion in the precentral region on preoperative 15O positron emission tomography and underwent arterial bypass surgery for that region...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29381583/99mtc-trodat-1-spect-ct-imaging-as-a-complementary-biomarker-in-the-diagnosis-of-parkinsonian-syndromes
#17
Bhagwant R Mittal, Apurva Sood, Jaya Shukla, Rakhee Vatsa, Priya Bhusari, Ritu Shree, Sahil Mehta, Manoj Goyal, Manish Modi
INTRODUCTION: Parkinson's disease (PD) and Parkinson plus syndromes (PPS) are neurodegenerative movement disorders caused by loss of dopamine in the basal ganglia. The diagnosis of both PD and PPS is complex as it is made solely on the basis of clinical features, with no established imaging modality to aid in the diagnosis. Technetium-99m-labeled tropane derivative (Tc-TRODAT-1) binds to the dopamine transporters present in the presynaptic membrane of the dopaminergic nerve terminal. The aim of this prospective study was to investigate the potential usefulness of Tc-TRODAT-1 imaging in the diagnosis of PD and PPS...
January 29, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29380286/diagnostic-value-of-stress-thallium-201-rest-technetium-99m-sestamibi-sequential-dual-isotope-high-speed-myocardial-perfusion-imaging-for-the-detection-of-haemodynamically-relevant-coronary-artery-stenosis
#18
Gilles Barone-Rochette, Feras Zoreka, Loïc Djaileb, Nicolas Piliero, Alex Calizzano, Jean Louis Quesada, Alexis Broisat, Laurent Riou, Jacques Machecourt, Daniel Fagret, Gerald Vanzetto, Catherine Ghezzi
BACKGROUND: The aim of this study was to determine the diagnostic accuracy of stress thallium-201/rest technetium-99m-sestamibi sequential dual-isotope high-speed myocardial perfusion imaging (DI-HS-MPI) against invasively determined fractional flow reserve (FFR). METHODS: Fifty-four consecutive patients prospectively underwent DI-HS-MPI before invasive coronary angiography. Perfusion was scored visually by summed stress score on a patient and coronary territory basis...
January 29, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29378278/renal-pseudo-tumor-related-to-renal-splenosis-imaging-features
#19
Mickael Tordjman, David Eiss, Jonathan Dbjay, Adeline Crosnier, Eva Comperat, Jean-Michel Correas, Nicolas DE Saint Aubert, Olivier Helenon
OBJECTIVE: To report the case of a 29 year-old patient presenting with renal splenosis along with a complete review of literature on this condition. Splenosis is a frequent condition following abdominal trauma or splenectomy, described as splenic tissue that autotransplants into a heterotopic location. However, renal splenosis is rare and often mistaken with renal carcinoma. MATERIAL AND METHODS: The patient was initially referred to our department for a renal mass incidentally discovered on ultrasound...
January 26, 2018: Urology
https://www.readbyqxmd.com/read/29360694/attenuation-correction-in-myocardial-perfusion-imaging-affects-the-assessment-of-infarct-size-in-women-with-previous-inferior-infarct
#20
Alessia Peli, Luca Camoni, Valentina Zilioli, Rexhep Durmo, Mattia Bonacina, Francesco Bertagna, Barbara Paghera, Raffaele Giubbini
BACKGROUND: Myocardial perfusion imaging is a well-established diagnostic tool in patients with known or suspected coronary artery disease. Numerous clinical trials have shown that attenuation correction (AC) in single photon emission computed tomography (SPECT) improves the diagnostic accuracy of myocardial perfusion imaging over non-AC SPECT, differentiating between scar and attenuation artifacts. We have previously shown that attenuation artifacts produce an overestimation of the size of inferior infarcts in the male population...
January 22, 2018: Nuclear Medicine Communications
keyword
keyword
12029
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"