Zobrazeno 1 - 10
of 7 394
pro vyhledávání: '"spect/ct"'
Autor:
Damian Tiberiu, Noel Spielhofer, Jakob Heimer, Alexander W. Sauter, Cristina Popescu, Daniel Hausmann, Jason L. Manser, Karim Eid, Rahel A. Kubik-Huch, Irene A. Burger
Publikováno v:
EJNMMI Research, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Background The introduction of quantitative SPECT/CT allows more objective assessments of tracer accumulation in SPECT. However standardized uptake values (SUV) still do not play a big role for orthopedic or oncologic questions. With a more
Externí odkaz:
https://doaj.org/article/bb30234d5d274f169f070246e2a4def1
Autor:
Hongyuan Zheng, Xiangxiang Li, Shen Wang, Shasha Hou, Chunling Shi, Xue Li, Qiang Jia, Wei Zheng
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-14 (2024)
Abstract Purpose This study aims to evaluate the accuracy of four kidney depth measurement methods—nuclear medicine tomography, nuclear medicine lateral scanning, ultrasound, and Tonnesen’s formula-based estimation—using CT measurements as the
Externí odkaz:
https://doaj.org/article/9f595ba483fb4b1aa727a88ea0d060ab
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-15 (2024)
Abstract Background The limited spatial resolution in SPECT images leads to partial volume effect (PVE), degrading the subsequent dosimetric accuracy. We aim to quantitatively evaluate PVE and partial volume corrections (PVC), i.e., recovery coeffici
Externí odkaz:
https://doaj.org/article/6b7b1c53435e4f36839c6f43f39ec758
Autor:
Suzune Tsukamoto, MD, Kazuna Kawabata, MD, PhD, Shunsuke Ito, MD, Saya Ando, MD, Kaori Kuriyama, MD, Shin Morooka, MD, Mototsugu Muramaki, MD, PhD, Mitsunori Kanagaki, MD, PhD, Makoto Hosono, MD, PhD
Publikováno v:
Radiology Case Reports, Vol 19, Iss 11, Pp 5128-5132 (2024)
Ganglioneuroma is a well-differentiated tumor originating from neural crest cells of the sympathetic nervous system. Although benign, a few cases have been reported that ganglioneuroma can metastasize to other sites. We report a case of adrenal gangl
Externí odkaz:
https://doaj.org/article/fcf9d49d308f4bcb85c69ed8e1c0da25
Autor:
Yu Liu, Mengting Li, Hong Chen, Wei Liu, Mengmeng Hu, Fan Hu, Ling Ma, Shengqing Hu, Min Zhao, Wei Cao, Xiaotian Xia
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract To explore the performance of 99mTc-diethylene triaminepentaacetic acid (DTPA) SPECT/CT texture analysis in evaluating the activity of thyroid-associated ophthalmopathy (TAO) . This retrospective study examined 115 TAO patients from a single
Externí odkaz:
https://doaj.org/article/9ea12a514bdf442f85e5035d32224224
Autor:
Theodorus J.P. Jansen, Sevilay Tokgöz, Mijke Buitinga, Sanne A.M. van Lith, Lieke Joosten, Cathelijne Frielink, Esther M. M. Smeets, Martijn W.J. Stommel, Marion B. van der Kolk, Bastiaan E. de Galan, Maarten Brom, Marti Boss, Martin Gotthardt
Publikováno v:
EJNMMI Research, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Background Estimation of beta cell mass is currently restricted to evaluating pancreatic tissue samples, which provides limited information. A non-invasive imaging technique that reliably quantifies beta cell mass enables monitoring of chang
Externí odkaz:
https://doaj.org/article/32f406a66a7a4f579892ea9495c91ece
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-15 (2024)
Abstract Background Accurate attenuation correction (AC) is vital in nuclear medicine, particularly for quantitative single-photon emission computed tomography/computed tomography (SPECT/CT) imaging. This study aimed to establish a CT-free quantifica
Externí odkaz:
https://doaj.org/article/52fa3f17d3e74f9c8e22a340a88c318a
Publikováno v:
BMC Medical Imaging, Vol 24, Iss 1, Pp 1-9 (2024)
Abstract Background Most patients with osteoporosis experience vertebral compression fracture (VCF), which significantly reduces their quality of life. These patients are at a high risk of secondary VCF regardless of treatment. Thus, accurate diagnos
Externí odkaz:
https://doaj.org/article/279e8798a5154e54ac365fa012e271b0
Autor:
Xiaojin Wang, Guichao Liu, Zhanyu Li, Jiyun Shi, Mingzhu Liang, Guining Fu, Liangzhan Lv, Shaolong Ju, Yin Wang, Wenhua Xu, Fan Wang, Qingdong Cao, Hong Shan
Publikováno v:
Thoracic Cancer, Vol 15, Iss 27, Pp 1958-1967 (2024)
Abstract Background Lymph node (LN) metastasis is a significant prognostic factor for esophageal squamous cell carcinoma (ESCC), and there are no satisfactory methods for accurately predicting metastatic LNs. The present study aimed to assess the eff
Externí odkaz:
https://doaj.org/article/209d29caba8c4017b363b295f77aabc9
Autor:
Julian Leube, Wies Claeys, Johan Gustafsson, Maikol Salas-Ramirez, Michael Lassmann, Michel Koole, Johannes Tran-Gia
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-20 (2024)
Abstract Background Although the importance of quantitative SPECT has increased tremendously due to newly developed therapeutic radiopharmaceuticals, there are still no accreditation programs to harmonize SPECT imaging. Work is currently underway to
Externí odkaz:
https://doaj.org/article/40409978bf78464483fe6377b9b9ad6e