Article
Neurosciences
Fiona Heeman, Maqsood Yaqub, Janine Hendriks, Ilona Bader, Frederik Barkhof, Juan Domingo Gispert, Bart N. M. van Berckel, Isadora Lopes Alves, Adriaan A. Lammertsma
Summary: Optimal pharmacokinetic models for quantifying amyloid beta (A beta) burden using [F-18]flutemetamol and [F-18]florbetaben scans have been identified. RPM and SRTM2 performed the best visually and provided the highest AUC values; most methods showed high correlation with the reference method, with MRTM2 showing the lowest correlation.
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Eun Ji Han, Yeoun Eun Sung, Mi-Hyang Jung, Joo Hyun O, Jong-Chan Youn
Summary: This report presents the use of F-18-flutemetamol PET/CT imaging findings in a case of an 88-year-old man with cognitive impairment and transthyretin amyloid cardiomyopathy. The early phase PET/CT images showed a significant increase in myocardial uptake, while the delayed phase PET/CT images did not show any myocardial uptake. Dual-time-point amyloid PET/CT imaging may be beneficial in diagnosing and distinguishing subtypes of amyloid cardiomyopathy in patients with suspected cardiac amyloidosis.
CLINICAL NUCLEAR MEDICINE
(2022)
Article
Medicine, General & Internal
Do-Hoon Kim, Junik Son, Chae Moon Hong, Ho-Sung Ryu, Shin Young Jeong, Sang-Woo Lee, Jaetae Lee
Summary: In this study, we developed a novel quantification method using PET/CT and shape feature to discriminate between Alzheimer's disease and mild cognitive impairment or other precursors dementia. We calculated the cerebral amyloid smoothing score and brain atrophy index using PET images, and gray and white matter from trained CT data. Our results showed that shape feature had similar accuracy to standard uptake values in ROC analysis, and correlated well with neuropsychological tests. This suggests that shape feature is useful in the diagnosis of Alzheimer's disease.
Article
Neurosciences
Yanxiao Li, Yee Ling Ng, Manish D. Paranjpe, Qi Ge, Fengyun Gu, Panlong Li, Shaozhen Yan, Jie Lu, Xiuying Wang, Yun Zhou
Summary: This study aimed to improve the statistical power in detecting changes in brain glucose metabolism, amyloid, and tau deposition in Alzheimer's disease studies by using a reference tissue-based quantification approach. The results showed that the tracer-specific reference tissue improved the detection of PET SUVR changes, which is beneficial for early diagnosis, disease progression monitoring, and therapeutic response in Alzheimer's disease.
HUMAN BRAIN MAPPING
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Ji-Young Kim, Dongkyu Oh, Kiyoung Sung, Hongyoon Choi, Jin Chul Paeng, Gi Jeong Cheon, Keon Wook Kang, Dong Young Lee, Dong Soo Lee
Summary: This study analyzed the impact of deep learning-based one-step amyloid burden estimation system on inter-reader agreement and confidence of reading in clinical routine amyloid PET reading. The results showed that the deep learning system improved inter-reader agreement and increased confidence in visual interpretation.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2021)
Article
Neurosciences
Amory Jardel, Lucie Hopes, Catherine Malaplate, Veronique Roch, Chloe Manca, Therese Rivasseau Jonveaux, Antoine Verger
Summary: This study found that in patients suspected of having Alzheimer's disease with isolated cerebrospinal fluid increases in P-Tau proteins, a positive baseline amyloid PET was associated with more than twice the proportion of dementia conversions within the following three years.
JOURNAL OF ALZHEIMERS DISEASE
(2021)
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Jin Qi, Elizabeth Kurian, Orhan K. oez
Summary: Hibernomas are rare benign tumors originating from fetal brown adipose tissue. They can occur in various parts of the body, with thigh, shoulder, back, and neck being the most common locations, and are rarely found in the abdominal cavity, retroperitoneum, breast, bones, scrotum, and perirectum. We present a case of a 58-year-old woman with a mediastinal mass, who was incidentally found to have an FDG-avid fat-containing lesion in the omentum abutting the stomach.
CLINICAL NUCLEAR MEDICINE
(2023)
Article
Oncology
Sina Dalby, Sofie Skallerup, Christina Baun, Lene Gaarsmand Christensen, Mathias Rathe, Mikael Palner, Steffen Husby, Jesper Bonnet Moeller
Summary: This study used 2-[F-18]FDG-PET/CT scans to quantitatively evaluate the development and resolution of doxorubicin-induced gastrointestinal mucositis in mice. The results showed that abdominal SUVBW significantly increased in the doxorubicin-treated group, along with weight loss, decreased villus lengths, and increased levels of tumor necrosis factor and interleukin-1 beta.
FRONTIERS IN ONCOLOGY
(2022)
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Jonas Werner, Hannes Grunig, Hannah Loher, Stefan Fischli, Klaus Strobel, Corinna Wicke
Summary: We report a case of a 68-year-old woman with a tibial tumor and fatigue, which was diagnosed as a brown tumor secondary to severe primary hyperparathyroidism. F-18-fluorocholine PET/CT was used to localize the parathyroid adenoma and brown tumors, which were confirmed by unilateral neck exploration. After parathyroidectomy, the patient's symptoms improved with normalization of serum calcium and parathyroid hormone levels.
CLINICAL NUCLEAR MEDICINE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Friederike Voelter, Leonie Beyer, Florian Eckenweber, Maximilian Scheifele, Ngoc Bui, Marianne Patt, Henryk Barthel, Sabrina Katzdobler, Carla Palleis, Nicolai Franzmeier, Johannes Levin, Robert Perneczky, Boris-Stephan Rauchmann, Osama Sabri, Jimin Hong, Paul Cumming, Axel Rominger, Kuangyu Shi, Peter Bartenstein, Matthias Brendel
Summary: The purpose of this study was to compare [F-18]flutemetamol-amyloid-PET and [F-18]PI-2620 tau-PET as dual-purpose tracers for the detection of neurodegenerative disease. The results showed that the perfusion-weighted images of both tracers had high correlations across the brain, especially in the frontal and parietal lobes, which were the regions with pronounced perfusion deficit in the patient group. Therefore, both tracers may serve for two diagnostic channels by assessing amyloid/tau status and neuronal activity.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2023)
Article
Endocrinology & Metabolism
Fiona Heeman, Maqsood Yaqub, Isadora Lopes Alves, Kerstin Heurling, Santiago Bullich, Juan D. Gispert, Ronald Boellaard, Adriaan A. Lammertsma
Summary: This study evaluated the effects of global and regional cerebral blood flow changes on amyloid quantification using PET imaging. RLogan method was found to be the preferable choice for accurate quantification of amyloid load in [F-18]flutemetamol and [F-18]florbetaben studies.
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Joseph Therriault, Andrea L. Benedet, Tharick A. Pascoal, Melissa Savard, Nicholas J. Ashton, Mira Chamoun, Cecile Tissot, Firoza Lussier, Min Su Kang, Gleb Bezgin, Tina Wang, Jaime Fernandes-Arias, Gassan Massarweh, Paolo Vitali, Henrik Zetterberg, Kaj Blennow, Paramita Saha-Chaudhuri, Jean-Paul Soucy, Serge Gauthier, Pedro Rosa-Neto
Summary: This study assessed multiple methods for determining an optimal cutoff for F-18-AZD4694 PET positivity, with good convergence among different approaches. The findings suggest that a threshold of 1.55 SUVR may have reliable discriminative accuracy for amyloid-beta positivity on PET imaging.
JOURNAL OF NUCLEAR MEDICINE
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Sung Ryul Shim, Seong-Jang Kim
Summary: This study evaluated the diagnostic accuracies of F-18-FDG PET or PET/CT for Merkel cell carcinoma (MCC) through a systematic review and meta-analysis. The results showed that F-18-FDG PET/CT had excellent performance in diagnosing MCC and could be useful for exclusion and confirmation of the disease. Further large multicenter studies are needed to validate its diagnostic accuracy.
CLINICAL NUCLEAR MEDICINE
(2022)
Article
Multidisciplinary Sciences
Soo Jin Kwon, Seunggyun Ha, Sang-Won Yoo, Na-Young Shin, Joo O. Hyun, Ie Ryung Yoo, Joong-Seok Kim
Summary: This study aimed to validate early-phase F-18 Florbetaben positron emission tomography (eFBB PET) as a brain perfusion test and determine the optimal reference region. Results showed a high correlation between eFBB PET and ECD SPECT using cerebellum-based normalization methods, suggesting the reliability of eFBB PET as a perfusion test.
SCIENTIFIC REPORTS
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Daniela-Elena Oprea-Lager, Eric Gontier, Lina Garcia-Canamaque, Mathieu Gauthe, Pierre Olivier, Mercedes Mitjavila, Pilar Tamayo, Philippe Robin, Ana Maria Garcia Vicente, Anne-Charlotte Bouyeure, Alban Bailliez, Antonio Rodriguez-Fernandez, Sinan Ben Mahmoud, Juan Antonio Vallejo-Casas, Philippe Maksud, Charles Merlin, Paul Blanc-Durand, Clement Drouet, Hubert Tissot, Irina Vierasu, Thierry Vander Borght, Evelyne Boos, Florence Chossat, Marina Hodolic, Caroline Rousseau
Summary: The purpose of this study was to compare the per-patient detection rates of [F-18]DCFPyL and [F-18]fluoromethylcholine PET/CT in patients with first prostate cancer biochemical recurrence. The results showed that [F-18]DCFPyL had a significantly higher detection rate compared to [F-18]fluoromethylcholine.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2023)