keyword
MENU ▼
Read by QxMD icon Read
search

SPECT

keyword
https://www.readbyqxmd.com/read/29333471/sectional-anatomy-quiz-ii
#1
Rashid Hashmi
This mage-based series comprises of a quiz pertaining to the identification of salient and important anatomical structures and landmarks expected to be seen at a given level on the computed tomography (CT). The representative image is followed by a series of images showing the examples of different commonly encountered pathological entities that can be seen at this level in a routine clinical practice. Readers are encouraged to identify the highlighted anatomical structures and landmarks in all the images and appreciate the alterations in the appearance of the normal structures resulting from the presence of a pathology...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29333470/history-and-perspectives-of-nuclear-medicine-in-myanmar
#2
Win Mar
Nuclear Medicine was established in Myanmar in 1963 by Dr Soe Myint and International Atomic Energy expert Dr R. Hochel at Yangon General Hospital. Nuclear medicine diagnostic and therapeutic services started with Probe Scintillation Detector Systems and rectilinear scanner. In the early stage, many Nuclear Medicine specialists from the International Atomic Energy Agency (IAEA) spent some time in Myanmar and made significant contributions to the development of Nuclear Medicine in our country. The department participated in various IAEA technical cooperation projects and regional cooperation projects...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29333467/a-simple-non-invasive-i-123-imp-autoradiography-method-developed-by-modifying-the-simple-non-invasive-i-123-imp-microsphere-method
#3
Asato Ofuji, Rieko Nagaoka, Kosuke Yamashita, Akihiro Takaki, Shigeki Ito
Objectives: We developed a simple non-invasive I-123-N-isopropyl-p-iodoamphetamine (123I-IMP) quantification method by analyzing chest RI-angiography and single photon emission computed tomography (SPECT) images based on the microsphere model (SIMS method). Theoretically, the SIMS method could be changed to the simple non-invasive ARG (SIARG) method by modifying the integrated washout ratio (WR) to one-point WR. If the regional cerebral blood flow (rCBF) values derived from the SIARG and ARG methods correlate well, the facilities employing the ARG method can easily switch to the SIARG method...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29333464/comparison-of-tof-pet-and-bremsstrahlung-spect-images-of-yttrium-90-a-monte-carlo-simulation-study
#4
Akihiko Takahashi, Kazuhiko Himuro, Shingo Baba, Yasuo Yamashita, Masayuki Sasaki
Objectives: Yttrium-90 (90Y) is a beta particle nuclide used in targeted radionuclide therapy which is available to both single-photon emission computed tomography (SPECT) and time-of-flight (TOF) positron emission tomography (PET) imaging. The purpose of this study was to assess the image quality of PET and Bremsstrahlung SPECT by simulating PET and SPECT images of 90Y using Monte Carlo simulation codes under the same conditions and to compare them. Methods: In-house Monte Carlo codes, MCEP-PET and MCEP-SPECT, were employed to simulate images...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29331846/functional-neuroimaging-in-rasmussen-syndrome
#5
Ichiro Kuki, Kazumi Matsuda, Yuko Kubota, Tetsuhiro Fukuyama, Yukitoshi Takahashi, Yushi Inoue, Haruo Shintaku
PURPOSE: For a diagnosis of Rasmussen syndrome (RS), clinical course together with electroencephalography (EEG) and magnetic resonance imaging (MRI) findings are considered important, but there are few reports on functional neuroimaging. This study investigated cerebral blood flow (CBF)-single photon emission computed tomography (SPECT), central benzodiazepine receptor (BZR)-SPECT, and fluorine-18 fluorodeoxy glucose-positron emission tomography (FDG-PET) in RS patients, and correlated neuroimaging results with MRI and pathological findings...
January 5, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29330718/spect-ct-adds-distinct-lymph-node-basins-and-influences-radiologic-findings-and-surgical-approach-for-sentinel-lymph-node-biopsy-in-head-and-neck-melanoma
#6
Becky B Trinh, Brandon C Chapman, Ana Gleisner, Jennifer J Kwak, Rustain Morgan, Martin D McCarter, Csaba Gajdos, Nicole Kounalakis
BACKGROUND: Planar lymphoscintigraphy (PL) has a lower detection rate of sentinel lymph nodes (SLNs) in head and neck melanoma compared with other sites. We assessed situations when single-photon emission computed tomography/computed tomography (SPECT/CT) identified nodes not seen by PL. We also evaluated the impact of SPECT/CT on surgical approach and oncologic outcomes. METHODS: Patients who underwent SLN biopsy (SLNB) for head and neck melanoma with PL and SPECT/CT between November 2011 and December 2016 were included...
January 12, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29330100/osteoarthritis-year-in-review-2017-updates-on-imaging-advancements
#7
REVIEW
Nima Hafezi-Nejad, Shadpour Demehri, Ali Guermazi, John A Carrino
OBJECTIVE: This narrative review covers original research publications related to imaging advancements in osteoarthritis (OA) published in the English language between 1st April 2016 and 30th April 2017. METHODS: Relevant human studies (excluding pre-clinical and in-vitro studies), were searched and selected from PubMed database using the search terms of "osteoarthritis (OA)" in combination with "radiography", "magnetic resonance imaging (MRI)", "computed tomography (CT)", "ultrasound", "positron emission tomography (PET)," "single-photon emission computed tomography (SPECT)," and "scintigraphy"...
January 9, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29329716/gelatin-hydroxyapatite-calcium-sulphate-based-biomaterial-for-long-term-sustained-delivery-of-bone-morphogenic-protein-2-and-zoledronic-acid-for-increased-bone-formation-in-vitro-and-in-vivo-carrier-properties
#8
Deepak Bushan Raina, David Larsson, Filip Mrkonjic, Hanna Isaksson, Ashok Kumar, Lars Lidgren, Magnus Tägil
In this study, a novel macroporous composite biomaterial consisting of gelatin-hydroxyapatite-calcium sulphate for delivery of bone morphogenic protein-2 (rhBMP-2) and zoledronic acid (ZA) has been developed. The biomaterial scaffold has a porous structure and functionalization of the scaffold with rhBMP-2 induces osteogenic differentiation of MC3T3-e1 cells seen by a significant increase in biochemical and genetic markers of osteoblastic differentiation. In-vivo muscle pouch experiments showed higher mineralization using scaffold+rhBMP-2 when compared to an approved absorbable collagen sponge (ACS)+rhBMP-2 as verified by micro-CT...
January 10, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29327252/compared-vulnerabilities-to-small-cardiac-motions-between-different-cameras-used-for-myocardial-perfusion-imaging
#9
Julien Salvadori, Yolande Petegnief, Remi Sabbah, Olivier Morel, Hatem Boulahdour, Gilles Karcher, Pierre-Yves Marie, Laetitia Imbert
This phantom-based study was aimed to determine whether cardiac CZT-cameras, which provide an enhanced spatial resolution and image contrast compared to Anger cameras, are similarly affected by small cardiac motions. Translations of a left ventricular (LV) insert at half-SPECT acquisitions through six possible orthogonal directions and with 5- or 10-mm amplitude were simulated on the Discovery NM-530c and DSPECT CZT-cameras and on an Anger Symbia T2 camera equipped with an astigmatic (IQ.SPECT) or conventional parallel-hole collimator (Conv...
January 11, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29327251/a-practical-method-to-reduce-breast-attenuation-during-spect-myocardial-perfusion-imaging
#10
Mohsen Qutbi, Mehdi Soltanshahi
No abstract text is available yet for this article.
January 11, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29327129/quantification-of-osteoblastic-activity-in-epiphyseal-growth-plates-by-quantitative-bone-spect-ct
#11
Tomohiko Yamane, Ichiei Kuji, Akira Seto, Ichiro Matsunari
OBJECTIVE: Quantifying the function of the epiphyseal plate is worthwhile for the management of children with growth disorders. The aim of this retrospective study was to quantify the osteoblastic activity at the epiphyseal plate using the quantitative bone SPECT/CT. MATERIALS AND METHODS: We enrolled patients under the age of 20 years who received Tc-99m hydroxymethylene diphosphonate bone scintigraphy acquired by a quantitative SPECT/CT scanner. The images were reconstructed by ordered subset conjugate-gradient minimizer, and the uptake on the distal margin of the femur was quantified by peak standardized uptake value (SUVpeak)...
January 11, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29326358/targeted-alpha-therapy-of-mcrpc-with-225actinium-psma-617-swimmer-plot-analysis-suggests-efficacy-regarding-duration-of-tumor-control
#12
Clemens Kratochwil, Frank Bruchertseifer, Hendrik Rathke, Markus Hohenfellner, Frederik L Giesel, Uwe Haberkorn, Alfred Morgenstern
The aim of this evaluation is to identify first indicators regarding the efficacy of 225Ac-PSMA-617 therapy in a retrospectively analyzed group of patients. Methods: Forty patients with metastatic castration-resistant prostate cancer were selected for treatment with 3 cycles of 100 kBq/kgBW 225Ac-PSMA-617 in 2 months intervals. Prostate-specific antigen (PSA) and blood cell count were measured every 4 weeks. Prostate-specific membrane antigen (PSMA)-PET/CT or PSMA-SPECT/CT were used for baseline staging and imaging follow-up at month six...
January 11, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29324813/increase-in-extraction-of-i-123-iomazenil-in-patients-with-chronic-cerebral-ischemia
#13
Hiroki Kato, Kayako Isohashi, Eku Shimosegawa, Jun Hatazawa
BACKGROUND: Cerebral extraction of diffusively distributed substances like oxygen has been suggested to change according to the cerebral blood flow (CBF) and status of the microvasculature. The relationships between the cerebral extraction of diffusively distributed lipophilic tracers and the severity of cerebral ischemia has not yet been clarified. In the present study, we attempted to elucidate the association between the extraction fraction of the lipophilic tracer I-123 iomazenil (IMZ) (IMZ-EF) and the oxygen extraction fraction (OEF) derived from O-15 PET in patients with chronic steno-occlusive disease of internal carotid artery (ICA) or middle cerebral artery (MCA)...
2018: PloS One
https://www.readbyqxmd.com/read/29323252/clinical-value-of-99mtc-3prgd2-spect-ct-in-differentiated-thyroid-carcinoma-with-negative-131i-whole-body-scan-and-elevated-thyroglobulin-level
#14
Rui Gao, Guang-Jian Zhang, Yuan-Bo Wang, Yan Liu, Fan Wang, Xi Jia, Yi-Qian Liang, Ai-Min Yang
The aim of this study was to assess the usefulness of integrin imaging with 99mTc-PEG4-E[PEG4-c(RGDfK)]2 (99mTc-3PRGD2) single photon emission computed tomography (SPECT)/computed tomography (CT) in detecting recurrent disease in patients with differentiated thyroid cancer (DTC), negative radioiodine whole-body scan (WBS) and high serum thyroglobulin (Tg). Thirty-seven patients who underwent total thyroidectomy followed by radioactive iodine ablation and had negative radioiodine WBS but elevated Tg levels were included...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322380/rv-function-improvement-following-nitric-oxide-inhalation-demonstrated-by-gated-blood-pool-spect-in-a-patient-with-primary-pulmonary-hypertension
#15
Fayçal Ben Bouallègue, Fabien Vauchot, Aurélie Bourdon, Meriem Benkiran, Clément Boissin, Jérémy Charriot, Arnaud Bourdin, Denis Mariano-Goulart
No abstract text is available yet for this article.
January 10, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29322344/deadtime-effects-in-quantification-of-177lu-activity-for-radionuclide-therapy
#16
Carlos F Uribe, Pedro L Esquinas, Marjorie Gonzalez, Wei Zhao, Jesse Tanguay, Anna Celler
BACKGROUND: The aim of this study was to investigate the deadtime (DT) effects that are present in 177Lu images acquired after radionuclide therapy injection, assess differences in DT based on the full spectrum and the photopeak-only measurements, and design a method to correct for the deadtime losses. A Siemens SymbiaT SPECT/CT camera with a medium energy collimator was used. A 295-mL bottle was placed off-center inside a large cylinder filled with water, and 177Lu activity was sequentially added up to a maximum of 9...
January 11, 2018: EJNMMI Physics
https://www.readbyqxmd.com/read/29320705/an-adipose-tissue-atlas-an-image-guided-identification-of-human-like-bat-and-beige-depots-in-rodents
#17
Fang Zhang, Guiyang Hao, Mengle Shao, Kien Nham, Yu An, Qiong Wang, Yi Zhu, Christine M Kusminski, Gedaa Hassan, Rana K Gupta, Qiwei Zhai, Xiankai Sun, Philipp E Scherer, Orhan K Oz
[18F]Fluorodeoxyglucose-PET/CT (18F-FDG-PET/CT) imaging has been invaluable for visualizing metabolically active adipose tissues in humans with potential anti-diabetic and anti-obesity effects. To explore whether mice display human-like fat depots in anatomically comparable regions, we mapped fat depots using glucose or fatty acid imaging tracers, such as 18F-FDG through PET/CT or [123/125I]-β-methyl-p-iodophenyl-pentadecanoic acid with SPECT/CT imaging, to analogous depots in mice. Using this type of image analysis with both probes, we define a large number of additional areas of high metabolic activity corresponding to novel fat pads...
January 9, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29319547/the-role-of-molecular-imaging-in-the-characterization-of-renal-masses
#18
Alexa R Meyer, Mohamad E Allaf, Steven P Rowe, Michael A Gorin
PURPOSE OF REVIEW: To explore the role of molecular imaging in the characterization of renal masses. RECENT FINDINGS: Incidentally detected renal masses exhibit variable malignant potential related to their underlying histology. Patients presenting with a renal mass should undergo individual risk stratification including characterization of their tumor histology. At the present time, anatomical imaging techniques are unable to reliably distinguish between the various renal tumor subtypes...
January 11, 2018: Current Opinion in Urology
https://www.readbyqxmd.com/read/29319202/analysis-of-brain-spect-images-coregistered-with-mri-in-patients-with-epilepsy-comparison-of-three-methods
#19
Zaiyang Long, Dennis P Hanson, Brian P Mullan, Christopher H Hunt, David R Holmes, Benjamin H Brinkmann, Michael K O'Connor
BACKGROUND AND PURPOSE: SISCOM and STATISCOM were clinically proved to be effective for ictal/inter-ictal single-photon emission computed tomography (SPECT) analysis coregistered with magnetic resonance imaging (MRI) for seizure localization. Recently, a software package also became available for this analysis. This study aimed to investigate and compare the performance of these analysis methods for seizure localization. METHODS: A total of 378 patients who underwent 99m Tc-ethyl cysteinate dimer (ECD) SPECT scans were retrospectively reviewed and 28 remained after applying exclusion criteria...
January 10, 2018: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29319139/the-role-of-99mtc-dtpa-retrobulbar-spect-in-staging-and-follow-up-of-graves-orbitopathy
#20
László Galuska, Sándor Barna, József Varga, Ildikó Garai, Endre V Nagy
The pathogenesis of Graves' orbitopathy (GO) is not completely understood. Coexistent hyperfunction of the thyroid gland is frequent; however, GO may also coexist with hypo- or euthyrodism. The course of GO is largely independent of thyroid function, although elevated serum TSH is known to negatively interfere with GO course. GO is severe in 10 % of the cases; sight threatening complications may also develop. A successful therapy of GO requires the assesment of both the severity and activity of orbital inflammation...
January 10, 2018: Nuclear Medicine Review. Central & Eastern Europe
keyword
keyword
865
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"