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Reproducibility assessment of uptake on dedicated breast PET for noise discrimination
Springer Science and Business Media LLC - Tập 37 - Trang 121-130 - 2022
Shunsuke Yuge, Kanae K. Miyake, Takayoshi Ishimori, Masako Kataoka, Yoshiaki Matsumoto, Koji Fujimoto, Tomoharu Sugie, Masakazu Toi, Yuji Nakamoto
Dedicated breast PET (dbPET) systems have improved the detection of small breast cancers but have increased false-positive diagnoses due to an increased chance of noise detection. This study examined whether reproducibility assessment using paired images helped to improve noise discrimination and diagnostic performance in dbPET. This study included 21 patients with newly diagnosed breast cancer wh...... hiện toàn bộ
Role of traditional CHO PET parameters in distinguishing IDH, TERT and MGMT alterations in primary diffuse gliomas
Springer Science and Business Media LLC - Tập 35 - Trang 493-503 - 2021
Ziren Kong, Yucheng Zhang, Delin Liu, Penghao Liu, Yixin Shi, Yaning Wang, Dachun Zhao, Xin Cheng, Yu Wang, Wenbin Ma
Isocitrate dehydrogenase (IDH) mutation, telomerase reverse transcriptase (TERT) promoter mutation and O6-methylguanine-DNA methyltransferase (MGMT) promoter methylation status are diagnostic, prognostic, predictive and therapeutic biomarkers for primary diffuse gliomas, and this study aimed to explore the relationship between choline (CHO) positron emission tomography (PET) parameters and these m...... hiện toàn bộ
Cerebral perfusion pattern of idiopathic normal pressure hydrocephalus studied by SPECT and statistical brain mapping
Springer Science and Business Media LLC - Tập 21 - Trang 39-45 - 2007
Hiroki Sasaki, Kazunari Ishii, Atsushi K. Kono, Naokazu Miyamoto, Tetsuya Fukuda, Kenichi Shimada, Shingo Ohkawa, Tetsuro Kawaguchi, Etsuro Mori
Objectives: To investigate the specific pattern of cerebral blood flow (CBF) in subjects with idiopathic normal pressure hydrocephalus (iNPH) using voxel-based analysis.Methods: N-isopropyl-p-[123I]iodoamphetamine (IMP) single photon emission computed tomography (SPECT) images were performed in 30 iNPH patients, who met probable iNPH criteria, 30 Al...... hiện toàn bộ
Potential for qualitative diagnosis of tumors and tumorous lesions in the liver with Tc-99m-GSA SPECT —Correlation with pathological evaluation and MRI findings—
Springer Science and Business Media LLC - Tập 12 - Trang 275-280 - 1998
Kazuhiro Saito, Kiyoshi Koizumi, Kimihiko Abe, Yasuyuki Goto, Tomoyuki Seki
To evaluate the effect of technetium-99m-labeled DTPA-galactosyl human serum albumin (Tc-99m-GSA) SPECT imaging for qualitative diagnosis of hepatic lesions. The subjects were 29 patients with pathologically confirmed hepatic lesions (21 malignant and 8 benign lesions). SPECT data were obtained at about 30 minutes after injecting 185 MBq (5 mCi) of Tc-99m-GSA. The GSA SPECT findings were compared ...... hiện toàn bộ
Assessment of hepatic excretory function in chronic liver disease by hepatobiliary scintigraphy
Springer Science and Business Media LLC - Tập 3 - Trang 139-142 - 1989
Hisao Itoh, Norio Takahashi, Reiko Shimono, Takafumi Sugawara, Masashi Kawamura, Takaharu Tsuda, Masaaki Kataoka, Atsushi Iio, Ken Hamamoto, Kanji Ohshima, Koichi Akamatsu
Hepatobiliary scintigraphy was performed in 23 normal subjects and 47 patients with chronic liver disease (chronic hepatitis; n=27, liver cirrhosis; n=20) to evaluate its availability as a test of liver function. After intravenous administration of Tc-99m N-pyriodxyl-5-methyl-tryptophan, the data were acquired for 60 min and the time-activity curves of ROIs (the heart and liver) were generated. In...... hiện toàn bộ
Fluorine- 18-fluorodeoxyglucose positron emission tomography for assessment of patients with unresectable recurrent or metastatic lung cancers after CT-guided radiofrequency ablation: Preliminary results
Springer Science and Business Media LLC - Tập 20 - Trang 115-121 - 2006
Tomohisa Okuma, Terue Okamura, Toshiyuki Matsuoka, Akira Yamamoto, Yoshimasa Oyama, Masami Toyoshima, Koichi Koyama, Kiyotoshi Inoue, Kenji Nakamura, Yuichi Inoue
We compared the diagnostic value of fluorine-18-fiuorodeoxyglucose positron emission tomography (FDG-PET) with that of computed tomography (CT) following radiofrequency ablation (RFA) of inoperable recurrent or metastatic cancers in the lung. Twelve patients (9 males and 3 females; 5 had recurrent lung cancer and the other 7 had metastatic nodules from a variety of primary cancers) were treated by...... hiện toàn bộ
Attenuation correction for phantom tests: an alternative to maximum-likelihood attenuation correction factor-based correction for clinical studies in time-of-flight PET
Springer Science and Business Media LLC - Tập 36 - Trang 998-1006 - 2022
Tetsuro Mizuta, Yoshiyuki Yamakawa, Suzuka Minagawa, Tetsuya Kobayashi, Atsushi Ohtani, Shiho Takenouchi, Kohei Hanaoka, Shota Watanabe, Daisuke Morimoto-Ishikawa, Takahiro Yamada, Hayato Kaida, Kazunari Ishii
This study evaluates the phantom attenuation correction (PAC) method as an alternative to maximum-likelihood attenuation correction factor (ML-ACF) correction in time-of-flight (TOF) brain positron emission tomography (PET) studies. In the PAC algorithm, a template emission image $${\lambda }_{Ref}$$ ...... hiện toàn bộ
Performance measurement of PSF modeling reconstruction (True X) on Siemens Biograph TruePoint TrueV PET/CT
Springer Science and Business Media LLC - Tập 28 - Trang 340-348 - 2014
Young Sub Lee, Jin Su Kim, Kyeong Min Kim, Joo Hyun Kang, Sang Moo Lim, Hee-Joung Kim
The Siemens Biograph TruePoint TrueV (B-TPTV) positron emission tomography (PET) scanner performs 3D PET reconstruction using a system matrix with point spread function (PSF) modeling (called the True X reconstruction). PET resolution was dramatically improved with the True X method. In this study, we assessed the spatial resolution and image quality on a B-TPTV PET scanner. In addition, we assess...... hiện toàn bộ
Quantitative evaluation of salivary gland scintigraphy in Sjögren’s syndrome: comparison of diagnostic efficacy and relationship with pathological features of the salivary glands
Springer Science and Business Media LLC - Tập 34 Số 4 - Trang 289-298 - 2020
Huang, Jingxiong, Wu, Jing, Zhao, Liang, Liu, Wen, Wei, Jihong, Hu, Zhenguo, Hao, Bing, Wu, Hua, Sun, Long, Chen, Haojun
The value of salivary gland scintigraphy (SGS) in the evaluation of Sjögren’s syndrome (SS) remains controversial. The aim of this study was to evaluate the diagnostic efficacy of quantitative SGS in patients with xerostomia and to assess the correlation between scintigraphic parameters and pathological features of salivary glands. Medical records of 165 patients with xerostomia who underwent [99m...... hiện toàn bộ
Combined study of99mTc-HMPAO SPECT and computerized electroencephalographic topography (CET) in patients with medically refractory complex partial epilepsy
Springer Science and Business Media LLC - Tập 10 - Trang 113-118 - 1996
Margarida Rodrigues, M. Moniz Botelho, Ana T. Fonseca, John P. Peter, Teresa Pimentel, M. Rosário Vieira
For successful surgery for drug-resistant partial epilepsy the site of the seizure focus needs to be known exactly. The purpose of this study was to compare the evaluation of the regional cerebral blood flow (rCBF) (localization and degree of disturbances) by99mTc-hexamethylpropylene-amineoxime (HMPAO) single photon emission computed tomography (SPECT) with computerized electroencephalographic top...... hiện toàn bộ
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