نتایج جستجو برای: spect ct

تعداد نتایج: 142504  

2017
Catherine Guezennec Nathalie Keromnes Philippe Robin Ronan Abgral David Bourhis Solène Querellou Romain de Laroche Alexandra Le Duc-Pennec Pierre-Yves Salaün Pierre-Yves Le Roux

BACKGROUND SPECT/CT has been shown to increase the diagnostic performance of bone scintigraphy for staging of malignancies. A systematic double-bed SPECT/CT of the trunk may allow further improvement. However, this would be balanced by higher dosimetry and longer acquisition time. The objective was to assess the incremental diagnostic utility of a systematic double-bed SPECT/CT acquisition for ...

2006
Rachel Bar-Shalom Ahuva Engel Samy Nitecki

The present study evaluated the role of SPECT/CT as an adjunct to 67Ga (GS) or 111In-labeled white blood cell (WBC) scintigraphy for diagnosis or localization of infection. Methods: Eighty-two patients (56 male and 26 female; mean age, 62 y) assessed for known or suspected infectious processes underwent 88 SPECT/CT studies. Forty-seven patients underwent GS SPECT/CT (13 with fever of unknown or...

Objective(s): Nuclear medicine technologists in Japan often perform additional single-photon emission computed tomography (SPECT) with or without computed tomography (CT) after whole-body imaging for bone scintigraphy. In this study, we wanted to identify the bone scanning protocols used in Japan, together with the current clinical practices. Methods:...

2012
Florian S Schleich Maja Schürch Martin W Huellner Urs Hug Urs von Wartburg Klaus Strobel Patrick Veit-Haibach

UNLABELLED BACKGROUND Unspecific pain of the hand/wrist is a diagnostic challenge. Radiographs and planar bone scan are useful diagnostic tools in patients with unspecific wrist pain. Both modalities are deficient, either by not presenting metabolic disorders or due to inadequate anatomical resolution. Single photon emission computed tomography/computed tomography (SPECT/CT) claims to fuse b...

Journal: :asia oceania journal of nuclear medicine and biology 0
ajit s shinto nuclear medicine department, kovai medical center and hospital, india k. kamaleshwaran nuclear medicine department, kovai medical center and hospital, india k vyshak nuclear medicine department, kovai medical center and hospital, india natarajan sudhakar nuclear medicine department, kovai medical center and hospital, india sharmila banerjee isotope applications & radiopharmaceuticals division, bhabha atomic research centre, mumbai, india aruna korde isotope applications & radiopharmaceuticals division, bhabha atomic research centre, mumbai, india

objective(s): the objective of this study was to evaluate the performance and utility of 99mtc hynic-toc planar scintigraphy and spect/ct in the diagnosis, staging and management of gastroenteropancreatic neuroendocrine tumors (gpnets). methods: 22 patients (median age, 46 years) with histologically proven gastroentero-pancreatic nets underwent 99mtc hynic-toc whole body scintigraphy and region...

Journal: :iranian journal of radiation research 0
m.r. teimoori sichani department of medical radiation engineering, science and research branch, islamic azad university, tehran, iran m. amoui department of nuclear medicine, shahid beheshti university of medical science, tehran, iran sh. akhlaghpoor noor medical imaging center, tehran, iran m. hosntalab department of medical radiation engineering, science and research branch, islamic azad university, tehran, iran

background: in this study, quantitative 32p bremsstrahlung planar and spect imaging and consequent dose assessment were carried out as a comprehensive phantom study to define an appropriate method for accurate dosimetry in clinical practice. materials and methods: ct, planar and spect bremsstrahlung images of jaszczak phantom containing a known activity of 32p were acquired. in addition, phanto...

2017
Lauren K. Toney Richard D. Kim Swetha R. Palli

OBJECTIVE The objective was to quantify the potential economic value of single-photon emission computed tomography (SPECT) with computed tomography (CT; SPECT/CT) versus CT pulmonary angiography (CTPA), ventilation-perfusion (V/Q) planar scintigraphy, and V/Q SPECT imaging modalities for diagnosing suspected pulmonary embolism (PE) patients in an emergency setting. METHODS An Excel-based simu...

Journal: :EJNMMI research 2021

Abstract Background The tubarial glands (TGs) are recently reported as newly found salivary gland structures that can be organs at risk predominantly localized in the tori tubarius nasopharynx using prostate-specific membrane antigen positron emission tomography/computed tomography (PSMA PET/CT). aims of this study were to analyze uptake TGs compared with other and palatine tonsils [ 99m Tc]per...

Journal: :International journal of advanced research 2022

Gastrointestinal duplication cysts are a rare congenital malformation in the gastrointestinal tract, most commonly seen ilium. The present study reported child with mid ileal cyst ofthe ectopic gastric mucosa that was diagnosed by Technetium-99m pertechnetate single-photon emission computed tomography-computed tomography (SPECT-CT) scintigraphy. can massive lower bleeding early childhood (Mecke...

Journal: :Respiration; international review of thoracic diseases 2015
Andrzej Mazurek Miroslaw Dziuk Ewa Witkowska-Patena Stanislaw Piszczek Agnieszka Gizewska

BACKGROUND Pulmonary embolism (PE) is diagnosed either by ventilation/perfusion (V/Q) scintigraphy or pulmonary CT angiography. One of the imaging methods used in nuclear medicine is hybrid SPECT/CT scintigraphy. OBJECTIVES The aim of this study was to evaluate the utility of SPECT/CT(Q) scintigraphy in the diagnosis of PE and to compare SPECT/CT(Q) with planar(Q) and SPECT(Q) methods. METH...

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