نتایج جستجو برای: spect ct

تعداد نتایج: 142504  

Journal: :AJR. American journal of roentgenology 2014
Jigang Yang Ruirui Hao Leilei Yuan Chunlin Li Jue Yan Lishi Zhen

OBJECTIVE Surgical intervention in the form of parathyroidectomy is generally considered only for severe secondary hyperparathyroidism (sHPT). However, correct location of the parathyroid glands before parathyroidectomy is a challenge. The purpose of this study was to compare the diagnostic value of early and delayed phase (99m)Tc-sestamibi SPECT/CT in the detection of parathyroid tissue to gui...

2015
Yoo Sung Song Jin Chul Paeng Hyo-Cheol Kim Jin Wook Chung Gi Jeong Cheon June-Key Chung Dong Soo Lee Keon Wook Kang Saad Zakko.

⁹⁰Y PET/CT can be acquired after ⁹⁰Y-microsphere selective radiation internal therapy (SIRT) to describe radioactivity distribution. We performed dosimetry using ⁹⁰Y-microsphere PET/CT data to evaluate treatment efficacy and appropriateness of activity planning from (99m)Tc-MAA scan and SPECT/CT. Twenty-three patients with liver malignancy were included in the study. (99m)Tc-MAA was injected du...

Journal: :Journal of Nuclear Medicine 2009

Journal: :Journal of nuclear medicine technology 2015
Akira Maebatake Maho Sato Ruriko Kagami Yasuo Yamashita Isao Komiya Kazuhiko Himuro Shingo Baba Masayuki Sasaki

UNLABELLED The aim of this study was to evaluate differences in dopamine transporter SPECT images among different SPECT/CT devices and to determine the most appropriate region of interest (ROI) for semiquantitative evaluation. METHODS An anthropomorphic striatal phantom was filled with (123)I solutions of different striatum-to-background radioactivity ratios. Data were acquired using 2 SPECT/...

2014
Leif Claassen Theodor Uden Max Ettinger Kiriakos Daniilidis Christina Stukenborg-Colsman Christian Plaass

BACKGROUND Single-photon emission computed tomography and computed tomography (SPECT-CT) has a high impact on diagnosis and treatment decision of different joints. The aim of this study was to evaluate whether there is a different gain of SPECT-CT for different foot regions. MATERIAL AND METHODS We retrospectively identified 86 patients who received a SPECT-CT of the foot and ankle between Ap...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2007
William C Lavely Sibyll Goetze Kent P Friedman Jeffrey P Leal Zhe Zhang Elizabeth Garret-Mayer Alan P Dackiw Ralph P Tufano Martha A Zeiger Harvey A Ziessman

UNLABELLED Various methodologies for (99m)Tc-sestamibi parathyroid scintigraphy are in clinical use. There are few direct comparisons between the different methods and even less evidence supporting the superiority of one over another. Some reports suggest that SPECT is superior to planar imaging. The addition of CT to SPECT may further improve parathyroid adenoma localization. The purpose of ou...

Journal: :asia oceania journal of nuclear medicine and biology 0
yuka yamamoto department of radiology, faculty of medicine, kagawa university, kagawa, japan yoshihiro nishiyama department of radiology, faculty of medicine, kagawa university, kagawa, japan

osteoma is a benign bone-forming tumor that usually arises in the craniofacial bones and rarely in the long bones. clavicular involvement is extremely rare. we report a 51-year-old woman with osteoma of the left clavicle. radiograph of the left shoulder showed a well-defined lobulated blastic mass in the proximal and mid-portion of the left clavicle. bone scintigraphy was performed 4 hours afte...

2009
Laszlo Papp Maaz Zuhayra Reinhard Koch

An extension of the normalized mutual information similarity measurement was proposed to register cardiac PET/CT and SPECT images representing coronary artery disease in the heart. 23 PET/CT images obtained by a hybrid camera, and their corresponding SPECT were processed. The SPECT was registered to the PET/CT image pairs by a triple NMI based auto-registration. For validation and comparison an...

2013
Martin W. Huellner Alexander Bürkert Klaus Strobel María del Sol Pérez Lago Lennart Werner Urs Hug Urs von Wartburg Burkhardt Seifert Patrick Veit-Haibach

PURPOSE Chronic hand and wrist pain is a common clinical issue for orthopaedic surgeons and rheumatologists. The purpose of this study was 1. To analyze the interobserver agreement of SPECT/CT, MRI, CT, bone scan and plain radiographs in patients with non-specific pain of the hand and wrist, and 2. to assess the diagnostic accuracy of these imaging methods in this selected patient population. ...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2010
Hojjat Ahmadzadehfar Amir Sabet Kim Biermann Marianne Muckle Holger Brockmann Christiane Kuhl Kai Wilhelm Hans-Jürgen Biersack Samer Ezziddin

UNLABELLED Selective internal radiation therapy (SIRT), a catheter-based liver-directed modality for treating primary and metastatic liver cancer, requires appropriate planning to maximize its therapeutic response and minimize its side effects. (99m)Tc-macroaggregated albumin (MAA) scanning should precede the therapy to detect any extrahepatic shunting to the lung or gastrointestinal tract. Our...

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