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Book ; Conference proceedings: Quantitation in biomedical imaging with PET and MRI

Iida, Hidehiro

proceedings of the International Workshop on Quantitation in Biomedical Imaging with PET and MRI held in Osaka, Japan, between 26 and 27 January 2004

(International congress series ; 1265 : Radiology)

2004

Event/congress	International Workshop on Quantitation in Biomedical Imaging with PET and MRI (2004, Osaka)
Author's details	ed.: Hidehiro Iida
Series title	International congress series ; 1265 : Radiology
Collection
Keywords	Positronen-Emissions-Tomografie ; Funktionsdiagnostik ; Kernspintomografie
Subject	Funktionsprüfung ; Funktionstest ; Kernspintomographie ; NMR-Tomographie ; Magnetische Kernresonanztomographie ; MR-Tomographie ; Kernspinresonanztomographie ; MRI ; Magnetic resonance imaging ; IRM ; Magnetresonanztomographie ; Magnetresonanztomografie ; MRT ; NMR-Tomografie ; Nukleare Kernspintomographie ; MR-Bildgebung ; Positronen-Emissions-Tomographie ; PET
Language	English
Size	X, 286 S. : Ill., graph. Darst.
Edition	1. ed.
Publisher	Elsevier
Publishing place	Amsterdam u.a.
Publishing country	Netherlands
Document type	Book ; Conference proceedings
HBZ-ID	HT014103279
ISBN	0-444-51567-4 ; 978-0-444-51567-4
Database	Catalogue ZB MED Medicine, Health

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Article ; Online: [Accuracy of Non-invasive Arterial Input Functions and Error in Quantitative Images in the Cerebellar Reference Method].

Hayashi, Emi / Iida, Hidehiro / Fukuda, Tetsuya / Iida, Akihiko

Kaku igaku. The Japanese journal of nuclear medicine

2021 Volume 58, Issue 1, Page(s) 19–32

Abstract: Purpose: We developed and validated the accuracy of a method to calculate the arterial input function (AIF) from PET images only, without the need for the arterial blood sampling, in the absolute quantitation of functional parametric values in : ... ...

Abstract	Purpose: We developed and validated the accuracy of a method to calculate the arterial input function (AIF) from PET images only, without the need for the arterial blood sampling, in the absolute quantitation of functional parametric values in Methods: We extended the method reported by Iguchi et al. (2013) to derive the arterial input function, thus absolute quantitative functional parametric images of cerebral perfusion and oxygen metabolism by a reference tissue approach. We compared shapes of the AIF and reproducibility of the absolute functional values. Existing test data that were carried out with the continuous arterial blood sampling were used for this study. Results: The estimated AIF shapes agreed well with those estimated from the continuous arterial blood sampling. The error range of the absolute quantitative values was approximately ±20%, with a fairly well reproducibility in the relative values being less than 3%. Conclusion: The AIFs by this method were reproducible. Although the absolute quantitative values varied depending on the assumed functional values in the reference region in individual cases, the relative images showed fairly good agreement with the results from the standard technique that employed the arterial blood sampling. The present technique may provide significant contribution to clinical examination.
MeSH term(s)	Algorithms ; Arteries/diagnostic imaging ; Reproducibility of Results
Language	Japanese
Publishing date	2021-04-25
Publishing country	Japan
Document type	Journal Article
ZDB-ID	603723-9
ISSN	2189-9932 ; 0022-7854
ISSN (online)	2189-9932
ISSN	0022-7854
DOI	10.18893/kakuigaku.oa.2101
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Article: Long-Term Resveratrol Intake for Cognitive and Cerebral Blood Flow Impairment in Carotid Artery Stenosis/Occlusion.

Hattori, Yorito / Kakino, Yoshinori / Hattori, Yuji / Iwashita, Mari / Uchiyama, Hitoshi / Noda, Kotaro / Yoshimoto, Takeshi / Iida, Hidehiro / Ihara, Masafumi

Journal of stroke

2024 Volume 26, Issue 1, Page(s) 64–74

Abstract: Background and purpose: Carotid artery stenosis or occlusion (CASO) is a causative disease of vascular cognitive impairment (VCI) attributed to cerebral hypoperfusion, even without the development of symptomatic ischemic stroke. Preclinically, ... ...

Abstract	Background and purpose: Carotid artery stenosis or occlusion (CASO) is a causative disease of vascular cognitive impairment (VCI) attributed to cerebral hypoperfusion, even without the development of symptomatic ischemic stroke. Preclinically, resveratrol has been demonstrated to play an important role in improving cognitive function in rodent CASO models. This study investigated the association between long-term resveratrol intake and improvements in cognitive and cerebral hemodynamic impairments in patients with CASO. Methods: A retrospective cohort study was conducted on patients with asymptomatic carotid artery stenosis of ≥50% or occlusion who underwent 15O-gas positron emission tomography (15O-gas PET) and neuropsychological tests such as Montreal Cognitive Assessment (MoCA) and Alzheimer's Disease Assessment Scale-Cognitive Subscale 13 (ADAS-Cog) twice between July 2020 and March 2022 allowing >125-day interval. Patients were administered 30 mg/day resveratrol after the first 15O-gas PET and neuropsychological tests were compared with those who were not. Results: A total of 79 patients were enrolled in this study; 36 received resveratrol and 43 did not. Over a mean follow-up of 221.2 and 244.8 days, long-term resveratrol treatment significantly improved visuospatial/executive function (P=0.020) in MoCA, and memory domain (P=0.007) and total score (P=0.019) in ADAS-Cog. Cerebral blood flow demonstrated improvement in the right frontal lobe (P=0.027), left lenticular nucleus (P=0.009), right thalamus (P=0.035), and left thalamus (P=0.010) on 15O-gas PET. No adverse events were reported. Conclusion: Long-term daily intake of oral resveratrol may prevent or treat VCI by improving the cerebral blood flow in asymptomatic patients with CASO.
Language	English
Publishing date	2024-01-30
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2814366-8
ISSN	2287-6405 ; 2287-6391
ISSN (online)	2287-6405
ISSN	2287-6391
DOI	10.5853/jos.2023.02733
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Article ; Online: A non-invasive reference-based method for imaging the cerebral metabolic rate of oxygen by PET/MR: theory and error analysis.

Narciso, Lucas / Ssali, Tracy / Iida, Hidehiro / St Lawrence, Keith

Physics in medicine and biology

2021 Volume 66, Issue 6, Page(s) 65009

Abstract: Positron emission tomography (PET) remains the gold standard for quantitative imaging of the cerebral metabolic rate of oxygen ( ... ...

Abstract	Positron emission tomography (PET) remains the gold standard for quantitative imaging of the cerebral metabolic rate of oxygen (CMRO
MeSH term(s)	Adult ; Algorithms ; Brain/diagnostic imaging ; Brain/metabolism ; Cerebrovascular Circulation ; Humans ; Magnetic Resonance Imaging/methods ; Magnetic Resonance Imaging/standards ; Multimodal Imaging/methods ; Multimodal Imaging/standards ; Oxygen Consumption ; Positron-Emission Tomography/methods ; Positron-Emission Tomography/standards ; Reference Standards
Language	English
Publishing date	2021-03-04
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	208857-5
ISSN	1361-6560 ; 0031-9155
ISSN (online)	1361-6560
ISSN	0031-9155
DOI	10.1088/1361-6560/abe737
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Article ; Online: Evaluation of renal glucose uptake with [

Rebelos, Eleni / Mari, Andrea / Oikonen, Vesa / Iida, Hidehiro / Nuutila, Pirjo / Ferrannini, Ele

Metabolism: clinical and experimental

2022 Volume 141, Page(s) 155382

Abstract: Background/purpose: Studying renal glucose metabolism non-invasively in humans is an unmet need. Positron emission tomography (PET) is the current gold standard for measuring regional tissue glucose uptake rates, but the most widely used glucose analog ( ...

Abstract	Background/purpose: Studying renal glucose metabolism non-invasively in humans is an unmet need. Positron emission tomography (PET) is the current gold standard for measuring regional tissue glucose uptake rates, but the most widely used glucose analog ([ Methods: We measured individual [ Results: We found that the corrected glucose uptake is consistently higher in the medulla than cortex and that both cortical and medullary glucose uptake are higher in lean than obese participants under both fasting and insulinized conditions. Moreover, cortical but not medullary glucose uptake is increased from the fasting to the insulinized condition. Conclusion: The data show for the first time that [
MeSH term(s)	Humans ; Fluorodeoxyglucose F18 ; Tomography, X-Ray Computed ; Positron-Emission Tomography/methods ; Glucose/metabolism ; Obesity ; Radiopharmaceuticals
Chemical Substances	Fluorodeoxyglucose F18 (0Z5B2CJX4D) ; Glucose (IY9XDZ35W2) ; Radiopharmaceuticals
Language	English
Publishing date	2022-12-21
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	80230-x
ISSN	1532-8600 ; 0026-0495
ISSN (online)	1532-8600
ISSN	0026-0495
DOI	10.1016/j.metabol.2022.155382
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Article ; Online: Small animal PET with spontaneous inhalation of

Shimochi, Saeka / Ihalainen, Jukka / Parikka, Vilhelmiina / Kudomi, Nobuyuki / Tolvanen, Tuula / Hietanen, Ari / Kokkomäki, Esa / Johansson, Stefan / Tsuji, Masahiro / Kanaya, Shigehiko / Yatkin, Emrah / Grönroos, Tove J / Iida, Hidehiro

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

2023 , Page(s) 271678X231220691

Abstract: Perinatal hypoxic-ischaemic encephalopathy (HIE) is the leading cause of irreversible brain damage resulting in serious neurological dysfunction among neonates. We evaluated the feasibility of positron emission tomography (PET) methodology ... ...

Abstract	Perinatal hypoxic-ischaemic encephalopathy (HIE) is the leading cause of irreversible brain damage resulting in serious neurological dysfunction among neonates. We evaluated the feasibility of positron emission tomography (PET) methodology with
Language	English
Publishing date	2023-12-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	604628-9
ISSN	1559-7016 ; 0271-678X
ISSN (online)	1559-7016
ISSN	0271-678X
DOI	10.1177/0271678X231220691
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Article ; Online: Correction to: Brown adipose tissue fat‑fraction is associated with skeletal muscle adiposity.

Ogawa, Madoka / Koskensalo, Kalle / Laurila, Sanna / Holstila, Milja / Lahesmaa, Minna / Virtanen, Kirsi A / Iida, Hidehiro / Akima, Hiroshi / Nuutila, Pirjo

European journal of applied physiology

2021 Volume 122, Issue 1, Page(s) 91–92

Language	English
Publishing date	2021-11-02
Publishing country	Germany
Document type	Published Erratum
ZDB-ID	124793-1
ISSN	1439-6327 ; 1432-1025 ; 0301-5548 ; 1439-6319
ISSN (online)	1439-6327 ; 1432-1025
ISSN	0301-5548 ; 1439-6319
DOI	10.1007/s00421-021-04830-1
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Article ; Online: Middle Cerebellar Peduncle in Early Stage of Multiple System Atrophy: A THK5351 PET Study.

Horimoto, Yoshihiko / Hayashi, Emi / Okamura, Nobuyuki / Inagaki, Aki / Yasui, Keizo / Uchida, Yuto / Ito, Yoshihiro / Iida, Akihiko / Sato, Chikako / Anan, Chise / Suzuki, Ayuko / Tajima, Toshihisa / Hibino, Hiroaki / Kabasawa, Hidehiro / Matsukawa, Noriyuki

Movement disorders : official journal of the Movement Disorder Society

2022 Volume 37, Issue 9, Page(s) 1957–1959

MeSH term(s)	Aminopyridines ; Humans ; Middle Cerebellar Peduncle ; Multiple System Atrophy/diagnostic imaging ; Positron-Emission Tomography ; Quinolines
Chemical Substances	Aminopyridines ; Quinolines ; THK5351
Language	English
Publishing date	2022-07-15
Publishing country	United States
Document type	Letter ; Research Support, Non-U.S. Gov't
ZDB-ID	607633-6
ISSN	1531-8257 ; 0885-3185
ISSN (online)	1531-8257
ISSN	0885-3185
DOI	10.1002/mds.29143
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Article ; Online: NanoSPECT imaging reveals the uptake of 123I-labelled oxidized low-density lipoprotein in the brown adipose tissue of mice via CD36.

Hosomi, Kento / Kawashima, Hidekazu / Nakano, Atsushi / Kakino, Akemi / Okamatsu-Ogura, Yuko / Yamashita, Yuki / Sasaoka, Mai / Masuda, Daisaku / Yamashita, Shizuya / Chen, Chu-Huang / Yuzuriha, Shunsuke / Hosoda, Hiroshi / Iida, Hidehiro / Sawamura, Tatsuya

Cardiovascular research

2023 Volume 119, Issue 4, Page(s) 1008–1020

Abstract: Aims: The liver is the major organ shown to remove oxidized low-density lipoprotein (oxLDL) from the circulation. Given increased evidence that thermogenic adipose tissue has anti-effects, we used 123I-labelled oxLDL as a tracer to reveal oxLDL ... ...

Abstract	Aims: The liver is the major organ shown to remove oxidized low-density lipoprotein (oxLDL) from the circulation. Given increased evidence that thermogenic adipose tissue has anti-effects, we used 123I-labelled oxLDL as a tracer to reveal oxLDL accumulation in the brown adipose tissue (BAT) of mice. We also explored the mechanisms of oxLDL accumulation in BAT. Methods and results: We used high-resolution nanoSPECT/CT to investigate the tissue distribution of 123I-oxLDL and 123I-LDL (control) following intravenous injection into conscious mice. 123I-oxLDL distribution was discovered in BAT at an intensity equivalent to that in the liver, whereas 123I-LDL was detected mostly in the liver. Consistent with the function of BAT related to sympathetic nerve activity, administering anaesthesia in mice almost completely eliminated the accumulation of 123I-oxLDL in BAT, and this effect was reversed by administering β3-agonist. Furthermore, exposing mice to cold stress at 4°C enhanced 123I-oxLDL accumulation in BAT. Because in 123I-oxLDL, the protein of oxLDL was labelled, we performed additional experiments with DiI-oxLDL in which the lipid phase of oxLDL was fluorescently labelled and observed similar results, suggesting that the whole oxLDL particle was taken up by BAT. To identify the receptor responsible for oxLDL uptake in BAT, we analysed the expression of known oxLDL receptors (e.g. SR-A, CD36, and LOX-1) in cultured brown adipocyte cell line and primary brown adipocytes and found that CD36 was the major receptor expressed. Treatment of cells with CD36 siRNA or CD36 neutralizing antibody significantly inhibited DiI-oxLDL uptake. Finally, CD36 deletion in mice abolished the accumulation of 123I-oxLDL and DiI-oxLDL in BAT, indicating that CD36 is the major receptor for oxLDL in BAT. Conclusion: We show novel evidence for the CD36-mediated accumulation of oxLDL in BAT, suggesting that BAT may exert its anti-atherogenic effects by removing atherogenic LDL from the circulation.
MeSH term(s)	Animals ; Mice ; Adipose Tissue, Brown/metabolism ; Lipoproteins, LDL/metabolism ; CD36 Antigens/metabolism
Chemical Substances	oxidized low density lipoprotein ; Iodine-123 (8YWR746RPQ) ; Lipoproteins, LDL ; CD36 Antigens
Language	English
Publishing date	2023-05-04
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	80340-6
ISSN	1755-3245 ; 0008-6363
ISSN (online)	1755-3245
ISSN	0008-6363
DOI	10.1093/cvr/cvac167
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Article ; Online: Renal Cortical Glucose Uptake Is Decreased in Insulin Resistance and Correlates Inversely With Serum Free-fatty Acids.

Rebelos, Eleni / Mari, Andrea / Honka, Miikka-Juhani / Pekkarinen, Laura / Latva-Rasku, Aino / Laurila, Sanna / Rajander, Johan / Salminen, Paulina / Iida, Hidehiro / Ferrannini, Ele / Nuutila, Pirjo

The Journal of clinical endocrinology and metabolism

2023 Volume 109, Issue 4, Page(s) 1033–1040

Abstract: Context: Studies on human renal metabolism are scanty. Nowadays, functional imaging allows the characterization of renal metabolism in a noninvasive manner. We have recently demonstrated that fluorodeoxyglucose F18 (18F FDG) positron emission tomography ...

Abstract	Context: Studies on human renal metabolism are scanty. Nowadays, functional imaging allows the characterization of renal metabolism in a noninvasive manner. We have recently demonstrated that fluorodeoxyglucose F18 (18F FDG) positron emission tomography can be used to analyze renal glucose uptake (GU) rates, and that the renal cortex is an insulin-sensitive tissue. Objective: To confirm that renal GU is decreased in people with obesity and to test whether circulating metabolites are related to renal GU. Design, setting and participants: Eighteen people with obesity and 18 nonobese controls were studied with [18F]FDG positron emission tomography during insulin clamp. Renal scans were obtained ∼60 minutes after [18F]FDG injection. Renal GU was measured using fractional uptake rate and after correcting for residual intratubular [18F]FDG. Circulating metabolites were measured using high-throughput proton nuclear magnetic resonance metabolomics. Results: Cortical GU was higher in healthy nonobese controls compared with people with obesity (4.7 [3.4-5.6] vs 3.1 [2.2-4.3], P = .004, respectively), and it associated positively with the degree of insulin sensitivity (M value) (r = 0.42, P = .01). Moreover, cortical GU was inversely associated with circulating β-OH-butyrate (r = -0.58, P = .009), acetoacetate (r = -0.48, P = .008), citrate (r = -0.44, P = .01), and free fatty acids (r = -0.68, P < .0001), even when accounting for the M value. On the contrary, medullary GU was not associated with any clinical parameters. Conclusion: These data confirm differences in renal cortical GU between people with obesity and healthy nonobese controls. Moreover, the negative correlations between renal cortex GU and free fatty acids, ketone bodies, and citrate are suggestive of substrate competition in the renal cortex.
MeSH term(s)	Humans ; Insulin Resistance ; Fatty Acids, Nonesterified ; Fluorodeoxyglucose F18 ; Glucose/metabolism ; Insulin ; Positron-Emission Tomography ; Obesity ; Citrates ; Radiopharmaceuticals
Chemical Substances	Fatty Acids, Nonesterified ; Fluorodeoxyglucose F18 (0Z5B2CJX4D) ; Glucose (IY9XDZ35W2) ; Insulin ; Citrates ; Radiopharmaceuticals
Language	English
Publishing date	2023-11-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	3029-6
ISSN	1945-7197 ; 0021-972X
ISSN (online)	1945-7197
ISSN	0021-972X
DOI	10.1210/clinem/dgad663
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