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Liu S, Liu Z, Wu G, Ye H, Wu Z, Yang Z, Jiang S. Assessment of sepsis-associated encephalopathy by quantitative magnetic resonance spectroscopy in a rat model of cecal ligation and puncture. Heliyon 2024; 10:e26836. [PMID: 38434271 PMCID: PMC10906417 DOI: 10.1016/j.heliyon.2024.e26836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 02/06/2024] [Accepted: 02/20/2024] [Indexed: 03/05/2024] Open
Abstract
Proton magnetic resonance spectroscopy (1H-MRS) is the only non-invasive technique to quantify neurometabolic compounds in the living brain. We used 1H-MRS to evaluate the brain metabolites in a rat model of Sepsis-associated encephalopathy (SAE) established by cecal ligation and puncture (CLP). 36 male Sprague-Dawley rats were randomly divided into sham and CLP groups. Each group was further divided into three subgroups: subgroup O, subgroup M, and subgroup N. Neurological function assessments were performed on the animals in the subgroup O and subgroup N at 24 h, 48 h, and 72 h. The animals in the subgroup M were examined by magnetic resonance imaging (MRI) at 12 h after CLP. Compared with the sham group, the ratio of N-acetylaspartate (NAA) to creatine (Cr) in the hippocampus was significantly lower in the CLP group. The respective ratios of lactate (Lac), myo-inositol (mIns), glutamate and glutamine (Glx), lipid (Lip), and choline (Cho) to Cr in the CLP group were clearly higher than those in the sham group. Cytochrome c, intimately related to oxidative stress, was elevated in the CLP group. Neurofilament light (NfL) chain and glial fibrillary acidic protein (GFAP) scores in the CLP group were significantly higher than those in the sham group, while zonula occludens-1 (ZO-1) was downregulated. Compared with the sham group, the CLP group displayed higher values of oxygen extraction fraction (OEF), central venous-arterial partial pressure of carbon dioxide (P (cv-a) CO2), and central venous lactate (VLac). In contrast, jugular venous oxygen saturation (SjvO2) declined. In the present study, 1H-MRS could be used to quantitatively assess brain injury in terms of microcirculation disorder, oxidative stress, blood-brain barrier disruption, and glial cell activation through changes in metabolites within brain tissue.
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Affiliation(s)
- Siqi Liu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Zhifeng Liu
- The Fourth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 511300, China
| | - Gongfa Wu
- The Fourth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 511300, China
| | - Haoyi Ye
- The Fourth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 511300, China
| | - Zhihua Wu
- The Fourth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 511300, China
| | - Zhengfei Yang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Shanping Jiang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
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2
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Tiwari S, Gyawali I. Magnetic Resonance Spectroscopy of Intra-axial Gliomas With Histopathological Correlation in a Tertiary Care Center of Eastern Nepal. Cureus 2024; 16:e54287. [PMID: 38496065 PMCID: PMC10944577 DOI: 10.7759/cureus.54287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 03/19/2024] Open
Abstract
Background and objective Magnetic resonance spectroscopy (MRS) is a magnetic resonance imaging technique used to identify in vivo metabolites non-invasively within the tissue of interest. It plays an important role in diagnosing brain lesions, particularly tumors and infections. There are certain metabolites whose levels are increased or decreased in brain tumors, the ratios of which can also be used to grade the tumors as high- or low-grade. This study aimed to assess the spectrum of different metabolites in intraaxial gliomas using magnetic resonance spectroscopy and to assess the usefulness of their ratios for grading gliomas into high-grade and low-grade. Methods This descriptive cross-sectional study was performed in the radiology department of Nobel Medical College and Teaching Hospital, Biratnagar, Nepal over one year (September 2019 to September 2020). Thirty-five patients diagnosed as having intra-axial tumors were enrolled. After taking informed consent the examination findings were recorded in structured proforma. Siemens' 3 Tesla open magnet MAGNETOM Skyra (Siemens Healthineers AG, Munich, Germany) MR scanner was used to evaluate each patient. Data was analyzed using the software Statistical Package for Social Sciences (SPSS), version 26.0 (IBM Corp., Armonk, NY). Results Out of 35 patients scanned, 18 had high-grade glioma and 17 had low-grade glioma. High-grade glioma had a choline/creatine (Cho/Cr) ratio of 2.44 ± 0.78 and a choline/N-acetyl-aspartate (Cho/NAA) ratio of 2.05 ± 0.84. Low-grade glioma had a Cho/Cr ratio of 1.48 ± 0.50 and a Cho/NAA ratio of 1.41 ± 0.19. Fourteen out of eighteen high-grade gliomas had raised lipid/lactate peaks. The sensitivity, specificity, positive and negative predictive values (PPV and NPV), and accuracy for diagnosing high-grade glioma with a Cho/Cr ratio cut-off of 1.5 was 83.3 %, 82.4%, 83.3%,82.4 %, and 82.85% respectively. Conclusion MRS metabolite ratios can be used to diagnose and grade gliomas. Cho/Cr, Cho/NAA, and the presence or absence of lipid/lactate peak can significantly improve the sensitivity, specificity, predictive values, and accuracy of preoperative glioma grading when used in conjunction with conventional MRI.
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Affiliation(s)
- Suraj Tiwari
- Radiology, B.P. Koirala Institute of Health Sciences, Dharan, NPL
| | - Isha Gyawali
- Pathology, B.P. Koirala Institute of Health Sciences, Dharan, NPL
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Śmierciak N, Krzyściak W, Szwajca M, Karcz P, Bryll A, Popiela TJ, Donicz P, Turek A, Aleksandrovych V, Pilecki M. Benefits and Meaning of Lipids Profile in Relation to Oxidative Balance and Brain Morphology in Schizophrenia. Int J Mol Sci 2023; 24:11375. [PMID: 37511134 PMCID: PMC10379229 DOI: 10.3390/ijms241411375] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/30/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Schizophrenia is characterized by complex metabolic dysregulations and their consequences. Until now, numerous theories have explained its pathogenesis, using a spectrum of available technologies. We focused our interest on lipid profile-periphery high-density cholesterol level and lipoproteins in the human brain and compared magnetic resonance imaging (MRI) scans of patients with schizophrenia and the healthy group. Detailed analysis of biochemical parameters was performed using magnetic resonance spectroscopy. Our study aimed to reveal correlations between periphery high-density lipoproteins levels and lipoproteins in the brain, depicted in MRI scans, and parameters of peripheral oxidative stress expressed as paraoxonase. Patients with schizophrenia have decreased levels of high-density lipoproteins, low paraoxonase activity, and slightly raised sodium in the blood. Positive significant correlations between serum high-density cholesterol and anterior cingulate cortex, unique brain area for schizophrenia pathophysiology, MR spectroscopy signals, and diffusion have been revealed. To our knowledge, this is the first study to describe the effect of an anterior cingulate disorder on high-density cholesterol levels on the development of schizophrenia.
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Affiliation(s)
- Natalia Śmierciak
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Jagiellonian University Medical College, 31-501 Krakow, Poland
| | - Wirginia Krzyściak
- Department of Medical Diagnostics, Jagiellonian University Medical College, 30-688 Krakow, Poland
| | - Marta Szwajca
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Jagiellonian University Medical College, 31-501 Krakow, Poland
| | - Paulina Karcz
- Department of Electroradiology, Jagiellonian University Medical College, 31-126 Krakow, Poland
| | - Amira Bryll
- Department of Radiology, Jagiellonian University Medical College, 31-501 Krakow, Poland
| | - Tadeusz J Popiela
- Department of Radiology, Jagiellonian University Medical College, 31-501 Krakow, Poland
| | - Paulina Donicz
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Jagiellonian University Medical College, 31-501 Krakow, Poland
| | - Aleksander Turek
- Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, 31-530 Krakow, Poland
| | - Veronika Aleksandrovych
- Department of Pathophysiology, Jagiellonian University Medical College, 31-121 Krakow, Poland
| | - Maciej Pilecki
- Department of Child and Adolescent Psychiatry, Faculty of Medicine, Jagiellonian University Medical College, 31-501 Krakow, Poland
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4
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Bompaire F, Birzu C, Bihan K, Desestret V, Fargeot G, Farina A, Joubert B, Leclercq D, Nichelli L, Picca A, Tafani C, Weiss N, Psimaras D, Ricard D. Advances in treatments of patients with classical and emergent neurological toxicities of anticancer agents. Rev Neurol (Paris) 2023; 179:405-416. [PMID: 37059646 DOI: 10.1016/j.neurol.2023.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/18/2023] [Accepted: 03/21/2023] [Indexed: 04/16/2023]
Abstract
The neurotoxicity associated to the anticancer treatments has received a growing body of interest in the recent years. The development of innovating therapies over the last 20years has led to the emergence of new toxicities. Their diagnosis and management can be challenging in the clinical practice and further research is warranted to improve the understanding of their pathogenic mechanisms. Conventional treatments as radiation therapy and chemotherapy are associated to well-known and under exploration emerging central nervous system (CNS) and peripheral nervous system (PNS) toxicities. The identification of the risk factors and a better understanding of their pathogeny through a "bench to bedside and back again" approach, are the first steps towards the development of toxicity mitigation strategies. New imaging techniques and biological explorations are invaluable for their diagnosis. Immunotherapies have changed the cancer treatment paradigm from tumor cell centered to immune modulation towards an efficient anticancer immune response. The use of the immune checkpoints inhibitors (ICI) and chimeric antigen receptor (CAR-T cells) lead to an increase in the incidence of immune-mediated toxicities and new challenges in the neurological patient's management. The neurological ICI-related adverse events (n-irAE) are rare but potentially severe and may present with both CNS and PNS involvement. The most frequent and well characterized, from a clinical and biological standpoint, are the PNS phenotypes: myositis and polyradiculoneuropathy, but the knowledge on CNS phenotypes and their treatments is expanding. The n-irAE management requires a good balance between dampening the autoimmune toxicity without impairing the anticancer immunity. The adoptive cell therapies as CAR-T cells, a promising anticancer strategy, trigger cellular activation and massive production of proinflammatory cytokines inducing frequent and sometime severe toxicity known as cytokine release syndrome and immune effector cell-associated neurologic syndrome. Their management requires a close partnership between oncologist-hematologists, neurologists, and intensivists. The oncological patient's management requires a multidisciplinary clinical team (oncologist, neurologist and paramedical) as well as a research team leading towards a better understanding and a better management of the neurological toxicities.
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Affiliation(s)
- Flavie Bompaire
- Service de Neurologie, Hôpital d'Instruction des Armées Percy, Service de Santé des Armées, Clamart, France; UMR 9010 Centre Borelli, Université Paris-Saclay, École Normale Supérieure Paris-Saclay, CNRS, Service de Santé des Armées, Université Paris Cité, Inserm, Saclay, France; OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France
| | - Cristina Birzu
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France; AP-HP, Hôpitaux Universitaires La Pitié-Salpêtrière - Charles-Foix, Service de Neurologie 2-Mazarin, Sorbonne Université, Paris, France
| | - Kevin Bihan
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; AP-HP, Service de Pharmacologie, Centre Régional de Pharmacovigilance, Hôpitaux Universitaires La Pitié-Salpêtrière - Charles-Foix, Inserm, CIC-1901, Sorbonne Universités, Paris, France
| | - Virginie Desestret
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; Service de Neurocognition et Neuro-ophtalmologie, Hospices Civils de Lyon, Hôpital Neurologique Pierre-Wertheimer, Lyon, France; Centre de Référence Maladies Rares pour les Syndromes Neurologiques Paranéoplasiques et les Encéphalites Auto-Immunes, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL-CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France
| | - Guillaume Fargeot
- AP-HP, Service de Neurologie, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Antonio Farina
- Centre de Référence Maladies Rares pour les Syndromes Neurologiques Paranéoplasiques et les Encéphalites Auto-Immunes, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL-CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France; Service de Neurologie, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Pierre-Bénite, France
| | - Bastien Joubert
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; Centre de Référence Maladies Rares pour les Syndromes Neurologiques Paranéoplasiques et les Encéphalites Auto-Immunes, Hospices Civils de Lyon, Hôpital Neurologique, Bron, France; MeLiS, UCBL-CNRS UMR 5284, Inserm U1314, Université Claude-Bernard Lyon 1, Lyon, France; Service de Neurologie, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Pierre-Bénite, France
| | - Delphine Leclercq
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; AP-HP, Service de Neuroradiologie, Hôpitaux Universitaires La Pitié-Salpêtrière - Charles-Foix, Sorbonne Universités, Paris, France
| | - Lucia Nichelli
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; AP-HP, Service de Neuroradiologie, Hôpitaux Universitaires La Pitié-Salpêtrière - Charles-Foix, Sorbonne Universités, Paris, France
| | - Alberto Picca
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France; AP-HP, Hôpitaux Universitaires La Pitié-Salpêtrière - Charles-Foix, Service de Neurologie 2-Mazarin, Sorbonne Université, Paris, France
| | - Camille Tafani
- Service de Neurologie, Hôpital d'Instruction des Armées Percy, Service de Santé des Armées, Clamart, France; OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France
| | - Nicolas Weiss
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; Dipartimento di Neuroscienze, Psicologia, Area del Farmaco e Salute del Bambino. Università di Firenze, Firenze, Italy; AP-HP, Service de Soins Intensifs en Neurologie, Hôpitaux Universitaires La Pitié-Salpêtrière - Charles-Foix, Sorbonne Universités, Paris, France; École du Val-de-Grâce, Service de Santé des Armées, Paris, France
| | - Dimitri Psimaras
- OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; AP-HP, Hôpitaux Universitaires La Pitié-Salpêtrière - Charles-Foix, Service de Neurologie 2-Mazarin, Sorbonne Université, Paris, France
| | - Damien Ricard
- Service de Neurologie, Hôpital d'Instruction des Armées Percy, Service de Santé des Armées, Clamart, France; UMR 9010 Centre Borelli, Université Paris-Saclay, École Normale Supérieure Paris-Saclay, CNRS, Service de Santé des Armées, Université Paris Cité, Inserm, Saclay, France; OncoNeuroTox Group: Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpêtrière - Charles-Foix et Hôpital d'Instruction des Armées Percy, Paris, France; École du Val-de-Grâce, Service de Santé des Armées, Paris, France.
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5
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Younger DS. Spinal cord motor disorders. HANDBOOK OF CLINICAL NEUROLOGY 2023; 196:3-42. [PMID: 37620076 DOI: 10.1016/b978-0-323-98817-9.00007-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Spinal cord diseases are frequently devastating due to the precipitous and often permanently debilitating nature of the deficits. Spastic or flaccid paraparesis accompanied by dermatomal and myotomal signatures complementary to the incurred deficits facilitates localization of the insult within the cord. However, laboratory studies often employing disease-specific serology, neuroradiology, neurophysiology, and cerebrospinal fluid analysis aid in the etiologic diagnosis. While many spinal cord diseases are reversible and treatable, especially when recognized early, more than ever, neuroscientists are being called to investigate endogenous mechanisms of neural plasticity. This chapter is a review of the embryology, neuroanatomy, clinical localization, evaluation, and management of adult and childhood spinal cord motor disorders.
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Affiliation(s)
- David S Younger
- Department of Clinical Medicine and Neuroscience, CUNY School of Medicine, New York, NY, United States; Department of Medicine, Section of Internal Medicine and Neurology, White Plains Hospital, White Plains, NY, United States.
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6
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Abdul Rashid K, Ibrahim K, Wong JHD, Mohd Ramli N. Lipid Alterations in Glioma: A Systematic Review. Metabolites 2022; 12:metabo12121280. [PMID: 36557318 PMCID: PMC9783089 DOI: 10.3390/metabo12121280] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/08/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Gliomas are highly lethal tumours characterised by heterogeneous molecular features, producing various metabolic phenotypes leading to therapeutic resistance. Lipid metabolism reprogramming is predominant and has contributed to the metabolic plasticity in glioma. This systematic review aims to discover lipids alteration and their biological roles in glioma and the identification of potential lipids biomarker. This systematic review was conducted using the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Extensive research articles search for the last 10 years, from 2011 to 2021, were conducted using four electronic databases, including PubMed, Web of Science, CINAHL and ScienceDirect. A total of 158 research articles were included in this study. All studies reported significant lipid alteration between glioma and control groups, impacting glioma cell growth, proliferation, drug resistance, patients' survival and metastasis. Different lipids demonstrated different biological roles, either beneficial or detrimental effects on glioma. Notably, prostaglandin (PGE2), triacylglycerol (TG), phosphatidylcholine (PC), and sphingosine-1-phosphate play significant roles in glioma development. Conversely, the most prominent anti-carcinogenic lipids include docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and vitamin D3 have been reported to have detrimental effects on glioma cells. Furthermore, high lipid signals were detected at 0.9 and 1.3 ppm in high-grade glioma relative to low-grade glioma. This evidence shows that lipid metabolisms were significantly dysregulated in glioma. Concurrent with this knowledge, the discovery of specific lipid classes altered in glioma will accelerate the development of potential lipid biomarkers and enhance future glioma therapeutics.
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Affiliation(s)
- Khairunnisa Abdul Rashid
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Kamariah Ibrahim
- Department of Biomedical Science, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Jeannie Hsiu Ding Wong
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Norlisah Mohd Ramli
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Correspondence: ; Tel.: +60-379673238
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7
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Li Y, Lu T, Wei W, Lin Z, Ding L, Li Z, Xue X. Swimming Training Mitigates Neurological Impairment of Intracerebral Haemorrhage in Mice via the Serine-Threonine Kinase/Glycogen Synthase Kinase 3β Signalling Pathway. Neuroscience 2022; 501:72-84. [PMID: 35961525 DOI: 10.1016/j.neuroscience.2022.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 10/15/2022]
Abstract
Swimming training (ST) can mitigate functional disorders in neurological diseases, but the effect and mechanism of ST in improving the neurological function of intracerebral haemorrhage (ICH) have not been reported. Our study aimed to explore the protective effect of early ST on ICH mice and its relationship with the serine-threonine kinase (Akt)/glycogen synthase kinase 3β (GSK3β) pathway. Our findings showed that the ICH model mice had poor behavioural manifestations in the Y maze test and open field test compared to the ST group and sham group. The modified neurological severity score was increased in the ICH mice, and 7 days of ST intervention significantly attenuated the neurological deficits. The ratios of myo-inositol/creatine, lactate/creatine and glutamate/creatine were decreased, and the ratios of N-acetylaspartate/creatine and choline/creatine were increased in the ICH mice with ST intervention. ST intervention decreased the expression of Iba1 and GFAP. Seven days of ST significantly increased the expression of p-Akt/Akt compared to that in the ICH mice. Furthermore, the Akt kinase inhibitor GSK690693 exacerbated neurological impairment, increased the expression of Iba1, GFAP and Bax/Bcl-2, and reversed the anti-apoptotic effects and anti-glia activation of ST, which was associated with the inhibition of p-Akt/Akt and p-GSK3β/GSK3β expression. These results indicated that the protective role of ST in ICH was mediated via the Akt/GSK3β pathway. In conclusion, ST displayed neuroprotection by inhibiting apoptosis and glial activation in ICH mice by activating the Akt/GSK3β signalling pathway.
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Affiliation(s)
- Yongxu Li
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China; College of Rehabilitation Medicine, Fujian University of Chinese Medicine, China
| | - Taotao Lu
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China; College of Rehabilitation Medicine, Fujian University of Chinese Medicine, China
| | - Wei Wei
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China
| | - Zhicheng Lin
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China
| | - Linlin Ding
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China
| | - Zhaohui Li
- Anxi County Hospital of Traditional Chinese Medicine, Quanzhou, Fujian Province, China.
| | - Xiehua Xue
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China; Fujian Key Laboratory of Rehabilitation Technology and Cognition Rehabilitation, China.
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8
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Tyurina AN, Vikhrova NB, Batalov AI, Kalaeva DB, Shults EI, Postnov AA, Pronin IN. [Radiological biomarkers of brain gliomas]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2022; 86:121-126. [PMID: 36534633 DOI: 10.17116/neiro202286061121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The most important objective of modern neuroimaging is comparison of data on genotype and phenotype of brain gliomas. Radiogenomics as a new branch of science is devoted to searching for such relationships based on MRI and PET/CT parameters. The 2021 WHO classification of tumors of the central nervous system poses the most important tasks for physicians in assessment of biological behavior of tumors and their response to combined treatment. The review demonstrates the possibilities and prospects of preoperative MRI and PET/CT with amino acids in assessing the genetic profile of brain gliomas.
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Affiliation(s)
- A N Tyurina
- Burdenko Neurosurgery Center, Moscow, Russia
| | | | - A I Batalov
- Burdenko Neurosurgery Center, Moscow, Russia
| | - D B Kalaeva
- Burdenko Neurosurgery Center, Moscow, Russia
- Moscow Engineering Physics Institute, Moscow, Russia
| | - E I Shults
- Research Practical Clinical Center of Diagnosis and Telemedicine Technologies, Moscow, Russia
| | - A A Postnov
- Burdenko Neurosurgery Center, Moscow, Russia
- Moscow Engineering Physics Institute, Moscow, Russia
- Lebedev Physical Institute, Moscow, Russia
| | - I N Pronin
- Burdenko Neurosurgery Center, Moscow, Russia
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9
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El-Abtah ME, Talati P, Dietrich J, Gerstner ER, Ratai EM. Magnetic resonance spectroscopic imaging for detecting metabolic changes in glioblastoma after anti-angiogenic therapy—a systematic literature review. Neurooncol Adv 2022; 4:vdac103. [PMID: 35892047 PMCID: PMC9307101 DOI: 10.1093/noajnl/vdac103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The impact of anti-angiogenic therapy (AAT) on patients with glioblastoma (GBM) is unclear due to a disconnect between radiographic findings and overall survivorship. MR spectroscopy (MRS) can provide clinically relevant information regarding tumor metabolism in response to AAT. This review explores the use of MRS to track metabolic changes in patients with GBM treated with AAT.
Methods
We conducted a systematic literature review in accordance with PRISMA guidelines to identify primary research articles that reported metabolic changes in GBMs treated with AAT. Collected variables included single or multi-voxel MRS acquisition parameters, metabolic markers, reported metabolic changes in response to AAT, and survivorship data.
Results
Thirty-five articles were retrieved in the initial query. After applying inclusion and exclusion criteria, 11 studies with 262 patients were included for qualitative synthesis with all studies performed using multi-voxel 1H MRS. Two studies utilized 31P MRS. Post-AAT initiation, shorter-term survivors had increased choline (cellular proliferation marker), increased lactate (a hypoxia marker), and decreased levels of the short echo time (TE) marker, myo-inositol (an osmoregulator and gliosis marker). MRS detected metabolic changes as soon as 1-day after AAT, and throughout the course of AAT, to predict survival. There was substantial heterogeneity in the timing of scans, which ranged from 1-day to 6–9 months after AAT initiation.
Conclusions
Multi-voxel MRS at intermediate and short TE can serve as a robust prognosticator of outcomes of patients with GBM who are treated with AAT.
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Affiliation(s)
- Mohamed E El-Abtah
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital , Charlestown, Massachusetts , USA
| | - Pratik Talati
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital , Charlestown, Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital , Boston, Massachusetts , USA
| | - Jorg Dietrich
- Massachusetts General Hospital, Cancer Center , Boston, Massachusetts , USA
- Harvard Medical School , Boston, Massachusetts , USA
| | - Elizabeth R Gerstner
- Massachusetts General Hospital, Cancer Center , Boston, Massachusetts , USA
- Harvard Medical School , Boston, Massachusetts , USA
| | - Eva-Maria Ratai
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital , Charlestown, Massachusetts , USA
- Harvard Medical School , Boston, Massachusetts , USA
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10
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Hampton DG, Goldman-Yassen AE, Sun PZ, Hu R. Metabolic Magnetic Resonance Imaging in Neuroimaging: Magnetic Resonance Spectroscopy, Sodium Magnetic Resonance Imaging and Chemical Exchange Saturation Transfer. Semin Ultrasound CT MR 2021; 42:452-462. [PMID: 34537114 DOI: 10.1053/j.sult.2021.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Magnetic resonance (MR) is a powerful and versatile technique that offers much more beyond conventional anatomic imaging and has the potential of probing in vivo metabolism. Although MR spectroscopy (MRS) predates clinical MR imaging (MRI), its clinical application has been limited by technical and practical challenges. Other MR techniques actively being developed for in vivo metabolic imaging include sodium concentration imaging and chemical exchange saturation transfer. This article will review some of the practical aspects of MRS in neuroimaging, introduce sodium MRI and chemical exchange saturation transfer MRI, and highlight some of their emerging clinical applications.
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Affiliation(s)
- Daniel G Hampton
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA.
| | - Adam E Goldman-Yassen
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA
| | - Phillip Zhe Sun
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA; Yerkes Imaging Center, Yerkes National Primate Research Center, Emory University, Atlanta, GA
| | - Ranliang Hu
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA
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11
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Matsusue E, Inoue C, Tabuchi S, Yoshioka H, Nagao Y, Matsumoto K, Nakamura K, Fujii S. Utility of 3T single-voxel proton MR spectroscopy for differentiating intracranial meningiomas from intracranial enhanced mass lesions. Acta Radiol Open 2021; 10:20584601211009472. [PMID: 34211737 PMCID: PMC8215334 DOI: 10.1177/20584601211009472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/23/2021] [Indexed: 02/03/2023] Open
Abstract
Background Proton magnetic resonance spectroscopy (MRS) provides structural and
metabolic information that is useful for the diagnosis of meningiomas with
atypical radiological appearance. However, the metabolite that should be
prioritized for the diagnosis of meningiomas has not been established. Purpose To evaluate the differences between the metabolic peaks of meningiomas and
other intracranial enhanced mass lesions (non-meningiomas) using MR
spectroscopy in short echo time (TE) spectra and the most useful metabolic
peak for discriminating between the groups. Material and Methods The study involved 9 meningiomas, 22 non-meningiomas, intracranial enhancing
tumors and abscesses, and 15 normal controls. The ranking of the peak at
3.8 ppm, peak at 3.8 ppm/Creatine (Cr), β-γ Glutamine-Glutamate (bgGlx)/Cr,
N-acetyl compounds (NACs)/Cr, choline (Cho)/Cr, lipid and/or lactate
(Lip-Lac) at 1.3 ppm/Cr, and the presence of alanine (Ala) were derived. The
metabolic peaks were compared using the Mann-Whitney U test. ROC analysis
was used to determine the cut-off values for differentiating meningiomas
from non-meningiomas using statistically significant metabolic peaks. Results The ranking of the peak at 3.8 ppm among all the peaks, peak at 3.8 ppm/Cr,
bgGlx/Cr, Lip-Lac/Cr, and the presence of Ala discriminated meningiomas from
non-meningiomas with moderate to high accuracy. The highest accuracy was
96.9% at a threshold value of 3 for the rank of the peak at 3.8 ppm. Conclusion A distinct elevated peak at 3.8 ppm, ranked among the top three highest
peaks, allowed the detection of meningiomas.
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Affiliation(s)
- Eiji Matsusue
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Chie Inoue
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Sadaharu Tabuchi
- Department of Neurosurgery, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Hiroki Yoshioka
- Department of Neurosurgery, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Yuichiro Nagao
- Department of Neurosurgery, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Kensuke Matsumoto
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Kazuhiko Nakamura
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Shinya Fujii
- Division of Radiology, Department of Multidisciplinary Internal Medicine, Tottori University, Tottori, Japan
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12
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Wang Q, Zhang J, Li F, Chen X, Xu B. The utility of magnetic resonance spectroscopy in frame-less stereotactic needle biopsy of glioma. J Clin Neurosci 2021; 88:102-107. [PMID: 33992167 DOI: 10.1016/j.jocn.2021.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 03/08/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Proton magnetic resonance spectroscopy (1H-MRS) can benefit the differentiation of gliomas preoperative grading and facilitate guiding biopsy. This study was to investigate the optimal metabolite or metabolic ratios of MRS for the biopsy target delineating by using the technique of MRS imaging guided frame-less stereotactic biopsy. METHODS During a 4 year period between the Sep 2012 and Oct 2016, 57 patients (25 women, 32 men; mean age, 46.4) with histologic diagnosis of glioma, who underwent the 1H-MRS imaging guided frameless stereotactic biopsy, were retrospectively reviewed. The metabolite or metabolic ratios values of MRS was measured. And the sensitivity, specificity, accuracy as well as the area under the curve (AUC) of those parameters for glioma grading are calculated based on the receiver operating characteristic curve (ROC) analysis. RESULTS 65 stereotactic biopsy samples from 57 patients were histopathologically clarified to HGGs (25) or LGGs (40) for quantitative analysis. The Cho, Cho/NAA and Cho/Cr values of LGGs group were significantly lower than that of HGGs (P = 0.09, 0.001, 0.003), and the NAA value of LGGs group was significantly higher than that of HGGs (P = 0.001). The cutoff value of 3.65 for the Cho/NAA ratio provided the best combination of sensitivity (92.0%), specificity (95.0%), and diagnostic accuracy (93.8%) for identifying glioma grade, which was superior to other parameters. CONCLUSION The results of our study provided evidence that Cho/NAA ratio had the superior diagnostic performance in distinguishing glioma grade, indicating that the spot of highest Cho/NAA ratio was optimal metabolic targets for spectroscopic guided tissue sampling in homogenous glioma.
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Affiliation(s)
- Qun Wang
- Department of Neurosurgery, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - JiaShu Zhang
- Department of Neurosurgery, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853, China.
| | - Fangye Li
- Department of Neurosurgery, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853, China
| | - XiaoLei Chen
- Department of Neurosurgery, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853, China.
| | - BaiNan Xu
- Department of Neurosurgery, Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing 100853, China
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13
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Casaña-Eslava RV, Ortega-Martorell S, Lisboa PJ, Candiota AP, Julià-Sapé M, Martín-Guerrero JD, Jarman IH. Robust Conditional Independence maps of single-voxel Magnetic Resonance Spectra to elucidate associations between brain tumours and metabolites. PLoS One 2020; 15:e0235057. [PMID: 32609725 PMCID: PMC7329095 DOI: 10.1371/journal.pone.0235057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 06/08/2020] [Indexed: 11/19/2022] Open
Abstract
The aim of the paper is two-fold. First, we show that structure finding with the PC algorithm can be inherently unstable and requires further operational constraints in order to consistently obtain models that are faithful to the data. We propose a methodology to stabilise the structure finding process, minimising both false positive and false negative error rates. This is demonstrated with synthetic data. Second, to apply the proposed structure finding methodology to a data set comprising single-voxel Magnetic Resonance Spectra of normal brain and three classes of brain tumours, to elucidate the associations between brain tumour types and a range of observed metabolites that are known to be relevant for their characterisation. The data set is bootstrapped in order to maximise the robustness of feature selection for nominated target variables. Specifically, Conditional Independence maps (CI-maps) built from the data and their derived Bayesian networks have been used. A Directed Acyclic Graph (DAG) is built from CI-maps, being a major challenge the minimization of errors in the graph structure. This work presents empirical evidence on how to reduce false positive errors via the False Discovery Rate, and how to identify appropriate parameter settings to improve the False Negative Reduction. In addition, several node ordering policies are investigated that transform the graph into a DAG. The obtained results show that ordering nodes by strength of mutual information can recover a representative DAG in a reasonable time, although a more accurate graph can be recovered using a random order of samples at the expense of increasing the computation time.
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Affiliation(s)
- Raúl Vicente Casaña-Eslava
- Department of Applied Mathematics, Liverpool John Moores University (LJMU), Liverpool, United Kingdom
- * E-mail:
| | - Sandra Ortega-Martorell
- Department of Applied Mathematics, Liverpool John Moores University (LJMU), Liverpool, United Kingdom
| | - Paulo J. Lisboa
- Department of Applied Mathematics, Liverpool John Moores University (LJMU), Liverpool, United Kingdom
| | - Ana Paula Candiota
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Cerdanyola del Vallès, Spain
| | - Margarida Julià-Sapé
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Cerdanyola del Vallès, Spain
| | | | - Ian H. Jarman
- Department of Applied Mathematics, Liverpool John Moores University (LJMU), Liverpool, United Kingdom
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14
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Nivajärvi R, Olsson V, Hyppönen V, Bowen S, Leinonen HM, Lesch HP, Ardenkjaer-Larsen JH, Gröhn OHJ, Ylä-Herttuala S, Kettunen MI. Detection of lentiviral suicide gene therapy in C6 rat glioma using hyperpolarised [1- 13 C]pyruvate. NMR IN BIOMEDICINE 2020; 33:e4250. [PMID: 31909530 DOI: 10.1002/nbm.4250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/06/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
Hyperpolarised [1-13 C]pyruvate MRI has shown promise in monitoring therapeutic efficacy in a number of cancers including glioma. In this study, we assessed the pyruvate response to the lentiviral suicide gene therapy of herpes simplex virus-1 thymidine kinase with the prodrug ganciclovir (HSV-TK/GCV) in C6 rat glioma and compared it with traditional MR therapy markers. Female Wistar rats were inoculated with 106 C6 glioma cells. Treated animals received intratumoural lentiviral HSV-TK gene transfers on days 7 and 8 followed by 2-week GCV therapy starting on day 10. Animals were repeatedly imaged during therapy using volumetric MRI, diffusion and relaxation mapping, as well as metabolic [1-13 C]pyruvate MRS imaging. Survival (measured as time before animals reached a humane endpoint and were euthanised) was assessed up to day 30 posttherapy. HSV-TK/GCV gene therapy lengthened the median survival time from 12 to 25 days. This was accompanied by an apparent tumour growth arrest, but no changes in diffusion or relaxation parameters in treated animals. The metabolic response was more evident in the case-by-case analysis than in the group-level analysis. Treated animals also showed a 37 ± 15% decrease (P < 0.05, n = 5) in lactate-to-pyruvate ratio between therapy weeks, whereas a 44 ± 18% increase (P < 0.05, n = 6) was observed in control animals. Hyperpolarised [1-13 C]pyruvate MRI can offer complementary metabolic information to traditional MR methods to give a more comprehensive picture of the slowly developing gene therapy response. This may benefit the detection of the successful therapy response in patients.
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Affiliation(s)
- Riikka Nivajärvi
- Kuopio Biomedical Imaging Unit, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Venla Olsson
- Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Viivi Hyppönen
- Kuopio Biomedical Imaging Unit, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Sean Bowen
- Center for Hyperpolarization in Magnetic Resonance, Department of Electrical Engineering, Technical University of Denmark, Lyngby, Denmark
| | - Hanna M Leinonen
- FinVector Oy, Kuopio, Finland
- Kuopio Center for Gene and Cell Therapy, Kuopio, Finland
| | - Hanna P Lesch
- FinVector Oy, Kuopio, Finland
- Kuopio Center for Gene and Cell Therapy, Kuopio, Finland
| | - Jan Henrik Ardenkjaer-Larsen
- Center for Hyperpolarization in Magnetic Resonance, Department of Electrical Engineering, Technical University of Denmark, Lyngby, Denmark
| | - Olli H J Gröhn
- Kuopio Biomedical Imaging Unit, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Seppo Ylä-Herttuala
- Molecular Medicine, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Mikko I Kettunen
- Kuopio Biomedical Imaging Unit, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
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15
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Differentiation between neoplastic and nonneoplastic brain masses using intermediate echo time MR Spectroscopy. JOURNAL OF CONTEMPORARY MEDICINE 2020. [DOI: 10.16899/jcm.607221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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16
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Chae WH, Niesel K, Schulz M, Klemm F, Joyce JA, Prümmer M, Brill B, Bergs J, Rödel F, Pilatus U, Sevenich L. Evaluating Magnetic Resonance Spectroscopy as a Tool for Monitoring Therapeutic Response of Whole Brain Radiotherapy in a Mouse Model for Breast-to-Brain Metastasis. Front Oncol 2019; 9:1324. [PMID: 31828043 PMCID: PMC6890861 DOI: 10.3389/fonc.2019.01324] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 11/13/2019] [Indexed: 01/06/2023] Open
Abstract
Brain metastases are the most common intracranial tumor in adults and are associated with poor patient prognosis and median survival of only a few months. Treatment options for brain metastasis patients remain limited and largely depend on surgical resection, radio- and/or chemotherapy. The development and pre-clinical testing of novel therapeutic strategies require reliable experimental models and diagnostic tools that closely mimic technologies that are used in the clinic and reflect histopathological and biochemical changes that distinguish tumor progression from therapeutic response. In this study, we sought to test the applicability of magnetic resonance (MR) spectroscopy in combination with MR imaging to closely monitor therapeutic efficacy in a breast-to-brain metastasis model. Given the importance of radiotherapy as the standard of care for the majority of brain metastases patients, we chose to monitor the post-irradiation response by magnetic resonance spectroscopy (MRS) in combination with MR imaging (MRI) using a 7 Tesla small animal scanner. Radiation was applied as whole brain radiotherapy (WBRT) using the image-guided Small Animal Radiation Research Platform (SARRP). Here we describe alterations in different metabolites, including creatine and N-acetylaspartate, that are characteristic for brain metastases progression and lactate, which indicates hypoxia, while choline levels remained stable. Radiotherapy resulted in normalization of metabolite levels indicating tumor stasis or regression in response to treatment. Our data indicate that the use of MR spectroscopy in addition to MRI represents a valuable tool to closely monitor not only volumetrical but also metabolic changes during tumor progression and to evaluate therapeutic efficacy of intervention strategies. Adapting the analytical technology in brain metastasis models to those used in clinical settings will increase the translational significance of experimental evaluation and thus contribute to the advancement of pre-clinical assessment of novel therapeutic strategies to improve treatment options for brain metastases patients.
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Affiliation(s)
- Woon Hyung Chae
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - Katja Niesel
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - Michael Schulz
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany.,Faculty of Biological Sciences, Goethe-University, Frankfurt, Germany
| | - Florian Klemm
- Department of Oncology and Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Johanna A Joyce
- Department of Oncology and Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | | | - Boris Brill
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - Judith Bergs
- Department of Radiotherapy and Oncology, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany.,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Franz Rödel
- Department of Radiotherapy and Oncology, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany.,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany.,Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
| | - Ulrich Pilatus
- Institute of Neuroradiology, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany
| | - Lisa Sevenich
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany.,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany.,Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
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17
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Abstract
Delirium is a serious complication of acute illness. Little is known, however, regarding the neurobiology of delirium, largely due to challenges in studying the complex inpatient population. Neuroimaging is one noninvasive method that can be used to study structural and functional brain abnormalities associated with delirium. The purpose of this integrative literature review was to examine the content and quality of current structural neuroimaging evidence in delirium. After meeting inclusion criteria, 11 articles were included in the review. Commonly noted structural abnormalities were impaired white matter integrity, brain atrophy, ischemic lesions, edema, and inflammation. Findings demonstrated widespread alterations in several brain structures. Limitations of the studies in this review included small sample sizes, inappropriate or questionable delirium measurements, and failure to consider confounding variables. This review provides insight into possible structural changes responsible for the signs and symptoms seen in patients with delirium, but more high-quality studies are needed.
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Affiliation(s)
| | - Todd B Monroe
- 1 The Ohio State University College of Nursing, Columbus, OH, USA
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18
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Qi C, Li Y, Fan X, Jiang Y, Wang R, Yang S, Meng L, Jiang T, Li S. A quantitative SVM approach potentially improves the accuracy of magnetic resonance spectroscopy in the preoperative evaluation of the grades of diffuse gliomas. Neuroimage Clin 2019; 23:101835. [PMID: 31035232 PMCID: PMC6487359 DOI: 10.1016/j.nicl.2019.101835] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 04/13/2019] [Accepted: 04/20/2019] [Indexed: 01/06/2023]
Abstract
OBJECTIVES To investigate the association between proton magnetic resonance spectroscopy (1H-MRS) metabolic features and the grade of gliomas, and to establish a machine-learning model to predict the glioma grade. METHODS This study included 112 glioma patients who were divided into the training (n = 74) and validation (n = 38) sets based on the time of hospitalization. Twenty-six metabolic features were extracted from the preoperative 1H-MRS image. The Student's t-test was conducted to screen for differentially expressed features between low- and high-grade gliomas (WHO grades II and III/IV, respectively). Next, the minimum Redundancy Maximum Relevance (mRMR) algorithm was performed to further select features for a support vector machine (SVM) classifier building. Performance of the predictive model was evaluated both in the training and validation sets using ROC curve analysis. RESULTS Among the extracted 1H-MRS metabolic features, thirteen features were differentially expressed. Four features were further selected as grade-predictive imaging signatures using the mRMR algorithm. The predictive performance of the machine-learning model measured by the AUC was 0.825 and 0.820 in the training and validation sets, respectively. This was better than the predictive performances of individual metabolic features, the best of which was 0.812. CONCLUSIONS 1H-MRS metabolic features could help in predicting the grade of gliomas. The machine-learning model achieved a better prediction performance in grading gliomas than individual features, indicating that it could complement the traditionally used metabolic features.
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Affiliation(s)
- Chong Qi
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Yiming Li
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China; Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Xing Fan
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Yin Jiang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Rui Wang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Song Yang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Lanxi Meng
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - Tao Jiang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China; Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China; National Clinical Research Center for Neurological Diseases, Beijing, China; Center of Brain Tumor, Beijing Institute for Brain Disorders, China; Chinese Glioma Genome Atlas Network (CGGA) and Asian Glioma Genome Atlas Network (AGGA), China.
| | - Shaowu Li
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China; National Clinical Research Center for Neurological Diseases, Beijing, China.
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19
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Tsougos I, Kousi E, Georgoulias P, Kapsalaki E, Fountas KN. Neuroimaging methods in Epilepsy of Temporal Origin. Curr Med Imaging 2018; 15:39-51. [DOI: 10.2174/1573405613666170622114920] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 05/04/2017] [Accepted: 05/11/2017] [Indexed: 11/22/2022]
Abstract
Background:
Temporal Lobe Epilepsy (TLE) comprises the most common form of
symptomatic refractory focal epilepsy in adults. Accurate lateralization and localization of the
epileptogenic focus are a significant prerequisite for determining surgical candidacy once the
patient has been deemed medically intractable. Structural MR imaging, clinical,
electrophysiological, and neurophysiological data have an established role in the localization of the
epileptogenic foci. Nevertheless, hippocampal sclerosis cannot be detected on MR images in more
than 30% of patients with TLE, and the presurgical assessment remains controversial.
</P><P>
Discussion: In the last years, advanced MR imaging techniques, such as 1H-MRS, DWI, DTI,
DSCI, and fMRI, may provide valuable additional information regarding the physiological and
metabolic characterization of brain tissue. MR imaging has shifted towards functional and
molecular imaging, thus, promising to improve the accuracy regarding the lateralization and the
localization of the epileptogenic focus. Additionally, nuclear medicine studies, such as SPECT and
PET imaging modalities, have become an asset for the decoding of brain function and activity, and
can be diagnostically helpful as well, since they provide valuable data regarding the altered
metabolic activity of the seizure foci.
Conclusion:
Overall, advanced MRI, SPECT, and PET imaging techniques are increasingly
becoming an essential part of TLE diagnostics, when the epileptogenic area is not identified on
structural MRI or when structural MRI, clinical, and electrophysiological findings are not in
concordance.
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Affiliation(s)
- Ioannis Tsougos
- Department of Medical Physics, School of Medicine, University of Thessaly, Larisa, Greece
| | - Evanthia Kousi
- The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Panagiotis Georgoulias
- Department of Medical Physics, School of Medicine, University of Thessaly, Larisa, Greece
| | - Eftychia Kapsalaki
- Department of Medical Physics, School of Medicine, University of Thessaly, Larisa, Greece
| | - Kostas N. Fountas
- Department of Medical Physics, School of Medicine, University of Thessaly, Larisa, Greece
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20
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Generating Magnetic Resonance Spectroscopy Imaging Data of Brain Tumours from Linear, Non-linear and Deep Learning Models. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/978-3-030-00536-8_14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
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21
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Lee AM, Beasley MJ, Barrett ED, James JR, Gambino JM. Single-voxel and multi-voxel spectroscopy yield comparable results in the normal juvenile canine brain when using 3 Tesla magnetic resonance imaging. Vet Radiol Ultrasound 2018; 59:577-586. [PMID: 29886575 DOI: 10.1111/vru.12634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 02/14/2018] [Accepted: 02/17/2018] [Indexed: 11/29/2022] Open
Abstract
Conventional magnetic resonance imaging (MRI) characteristics of canine brain diseases are often nonspecific. Single- and multi-voxel spectroscopy techniques allow quantification of chemical biomarkers for tissues of interest and may help to improve diagnostic specificity. However, published information is currently lacking for the in vivo performance of these two techniques in dogs. The aim of this prospective, methods comparison study was to compare the performance of single- and multi-voxel spectroscopy in the brains of eight healthy, juvenile dogs using 3 Tesla MRI. Ipsilateral regions of single- and multi-voxel spectroscopy were performed in symmetric regions of interest of each brain in the parietal (n = 3), thalamic (n = 2), and piriform lobes (n = 3). In vivo single-voxel spectroscopy and multi-voxel spectroscopy metabolite ratios from the same size and multi-voxel spectroscopy ratios from different sized regions of interest were compared. No significant difference was seen between single-voxel spectroscopy and multi-voxel spectroscopy metabolite ratios for any lobe when regions of interest were similar in size and shape. Significant lobar single-voxel spectroscopy and multi-voxel spectroscopy differences were seen between the parietal lobe and thalamus (P = 0.047) for the choline to N-acetyl aspartase ratios when large multi-voxel spectroscopy regions of interest were compared to very small multi-voxel spectroscopy regions of interest within the same lobe; and for the N-acetyl aspartase to creatine ratios in all lobes when single-voxel spectroscopy was compared to combined (pooled) multi-voxel spectroscopy datasets. Findings from this preliminary study indicated that single- and multi-voxel spectroscopy techniques using 3T MRI yield comparable results for similar sized regions of interest in the normal canine brain. Findings also supported using the contralateral side as an internal control for dogs with brain lesions.
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Affiliation(s)
- Alison M Lee
- Department of Clinical Sciences, Mississippi State University College of Veterinary Medicine, Mississippi State, MS, 39762
| | - Michaela J Beasley
- Department of Clinical Sciences, Mississippi State University College of Veterinary Medicine, Mississippi State, MS, 39762
| | - Emerald D Barrett
- Department of Clinical Sciences, Mississippi State University College of Veterinary Medicine, Mississippi State, MS, 39762
| | - Judy R James
- Medical Physics Division, Department of Radiology, Mayo Clinic College of Medicine, Phoenix, AZ, 85054
| | - Jennifer M Gambino
- Department of Clinical Sciences, Mississippi State University College of Veterinary Medicine, Mississippi State, MS, 39762
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Li L, Li N, An L, Shen J. A novel approach to probing in vivo metabolite relaxation: Linear quantification of spatially modulated magnetization. Magn Reson Med 2018; 79:2491-2499. [PMID: 28940581 PMCID: PMC5821591 DOI: 10.1002/mrm.26941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 08/16/2017] [Accepted: 08/31/2017] [Indexed: 11/08/2022]
Abstract
PURPOSE Conventional sequences for metabolite transverse relaxation quantification all generally measure signal changes at different echo times (TEs). However, quantification results obtained via these conventional methods can be very different and are highly dependent on the type of sequence being applied. TE-dependent effects such as diffusion, macromolecule baseline, and J-coupling modulation contribute significantly to these differences. Here, we propose a novel technique-multiple flip angle pulse-driven ratio of longitudinal steady states (MARzss)-for preparing magnetization with T2 /T1 weighting. Using premeasured T1 values, T2 values for metabolites can thereby be determined. The measurement procedure does not require varying TE and is TE independent; T2 , diffusion, and J-coupling effects induced by the readout sequence are cancelled. METHOD Longitudinal steady states at different flip angles were prepared with trains of radio frequency pulses interspersed with field gradients. The resulting spatially modulated longitudinal magnetization was acquired with a PRESS readout module. A new linear equation for quantification of MARzss was derived from Bloch equations. RESULTS By implementing this readout-independent method, T2 measurement of brain metabolites at 7T was demonstrated through Bloch simulations, phantom, and in vivo experiments. CONCLUSIONS The proposed MARzss technique can be used to largely avoid multi-TE associated interference, including diffusion, macromolecules, and J modulation. This MARzss technology, which is uniquely insensitive to readout sequence type and TE, is a promising technique for more accurately probing in vivo metabolite relaxation. Magn Reson Med 79:2491-2499, 2018. © 2017 International Society for Magnetic Resonance in Medicine.
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Affiliation(s)
- Linqing Li
- National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
| | - Ningzhi Li
- National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
| | - Li An
- National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
| | - Jun Shen
- National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
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23
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Acciardo S, Mignion L, Joudiou N, Bouzin C, Baurain JF, Gallez B, Jordan BF. Imaging markers of response to combined BRAF and MEK inhibition in BRAF mutated vemurafenib-sensitive and resistant melanomas. Oncotarget 2018; 9:16832-16846. [PMID: 29682188 PMCID: PMC5908289 DOI: 10.18632/oncotarget.24709] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 02/25/2018] [Indexed: 02/07/2023] Open
Abstract
A majority of patients with a V600x melanoma respond quickly to BRAF/MEK inhibition (BRAFi/MEKi) and have an obvious clinical benefit. Nearly all the patients after this initial phase will develop resistance. Therefore, non-invasive early markers of response/non-response are needed in order to identify those patients who, due to intrinsic or acquired resistance, do not respond to treatment and would be eligible for alternative treatments. The aim of this study was to investigate the value of magnetic resonance spectroscopy (1H-MRS) of choline and diffusion-weighted magnetic resonance imaging (DW-MRI) as early markers of response to BRAF inhibition (BRAFi) with vemurafenib alone or in combination with MEK inhibition (MEKi) with trametinib, in BRAFi-sensitive and BRAFi-resistant melanoma xenografts. Tumor response was significantly improved by the combination of BRAFi and MEKi, compared to BRAFi alone, only in sensitive xenografts; thus indicating that vemurafenib-resistant A375R xenografts were cross-resistant to the inhibition of MEK, as confirmed by immunohistochemistry analysis for phosphorylated ERK. In vivo1H-MRS showed that in sensitive melanoma xenografts, a significant blockage of ERK phosphorylation, but not a decrease in cell proliferation, was required to affect total choline (tCho) levels, thus suggesting that tCho could serve as a pharmacodynamic (PD) marker for agents targeting the MAPK cascade. In addition, early effects of the combination therapy on tumor cellularity could be detected via DW-MRI. In particular, skewness and kurtosis of the apparent diffusion coefficient (ADC) distribution may be useful to detect changes in the diffusional heterogeneity that might not affect the global ADC value.
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Affiliation(s)
- Stefania Acciardo
- Université Catholique de Louvain, Louvain Drug Research Institute, Biomedical Magnetic Resonance Group, Brussels, Belgium
| | - Lionel Mignion
- Université Catholique de Louvain, Louvain Drug Research Institute, Biomedical Magnetic Resonance Group, Brussels, Belgium
| | - Nicolas Joudiou
- Université Catholique de Louvain, Louvain Drug Research Institute, NEST Nuclear and Electron Spin Technologies Platform, Brussels, Belgium
| | - Caroline Bouzin
- Université Catholique de Louvain, Institute de Recherche Expérimentale et Clinique, IREC Imaging Platform, Brussels, Belgium
| | - Jean-François Baurain
- Université Catholique de Louvain, Institute de Recherche Expérimentale et Clinique, Molecular Imaging and Radiation Oncology Group, Brussels, Belgium
| | - Bernard Gallez
- Université Catholique de Louvain, Louvain Drug Research Institute, Biomedical Magnetic Resonance Group, Brussels, Belgium
| | - Bénédicte F Jordan
- Université Catholique de Louvain, Louvain Drug Research Institute, Biomedical Magnetic Resonance Group, Brussels, Belgium
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Kaur T, Saini BS, Gupta S. An optimal spectroscopic feature fusion strategy for MR brain tumor classification using Fisher Criteria and Parameter-Free BAT optimization algorithm. Biocybern Biomed Eng 2018. [DOI: 10.1016/j.bbe.2018.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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25
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Lucas JT, Cooper DA, Hwang S, Tinkle C, Li X, Li Y, Orr B, Merchant TE, Broniscer A. Prognostic Relevance of Treatment Failure Patterns in Pediatric High-Grade Glioma: Is There a Role for a Revised Failure Classification System? Int J Radiat Oncol Biol Phys 2017; 99:450-458. [DOI: 10.1016/j.ijrobp.2017.04.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 02/24/2017] [Accepted: 04/26/2017] [Indexed: 10/19/2022]
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26
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Nakamura H, Doi M, Suzuki T, Yoshida Y, Hoshikawa M, Uchida M, Tanaka Y, Takagi M, Nakajima Y. The Significance of Lactate and Lipid Peaks for Predicting Primary Neuroepithelial Tumor Grade with Proton MR Spectroscopy. Magn Reson Med Sci 2017; 17:238-243. [PMID: 28819084 PMCID: PMC6039781 DOI: 10.2463/mrms.mp.2017-0042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Purpose: 1H-MRS is a non-invasive technique used to assess the metabolic activity of brain tumors. The technique is useful for the preoperative prediction of tumor grade, which is important for treatment planning and accurate prognosis. We used 1H-MRS to study the lactate peak, which appears in various conditions, including hyperglycemia, ischemia, and hypoxia and lipid peak, which is associated with necrotic cells. The purpose of this study was to retrospectively examine the frequency and significance of lactate and lipid peaks in relation to brain tumor grade. Materials and Methods: Fifty-five patients diagnosed with neuroepithelial tumors of Grades I (3 cases), II (11 cases), III (15 cases), and IV (26 cases) were enrolled. Biopsies were excluded. Single voxel (TE = 144 ms) point resolved 1H-MRS spectroscopy sequences were retrospectively analyzed. An inverted doublet peak at 1.3 ppm was defined as lactate, a negative and positive peak was defined as combined lactate and lipid, and a clear upward peak was defined as lipid. Results: Lactate peaks were detected in all grades of brain tumors and were least common in Grade II tumors (9.1%). The frequency of combined lactate-lipid peaks was 0% (Grades I and II), 8.3% (Grade III), and 44% (Grade IV). Grade IV tumors were significantly different to the other grades. There were three cases with a lipid peak. All were glioblastoma. Conclusions: The presence of a lac peak may be useful to largely rule out the Grade II tumors, and allow the subsequent differentiation of Grade I tumors from Grade III or IV tumors by conventional imaging. The presence of a lipid peak may be associated with Grade IV tumors.
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Affiliation(s)
- Hisao Nakamura
- Department of Radiology, St. Marianna University of Medicine
| | - Masatomo Doi
- Department of Pathology, St. Marianna University of Medicine
| | - Takuya Suzuki
- Department of Radiology, St. Marianna University of Medicine
| | | | | | - Masashi Uchida
- Department of Neurosurgery, St. Marianna University of Medicine
| | - Yuichiro Tanaka
- Department of Neurosurgery, St. Marianna University of Medicine
| | - Masayuki Takagi
- Department of Pathology, St. Marianna University of Medicine
| | - Yasuo Nakajima
- Department of Radiology, St. Marianna University of Medicine
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27
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Assessment of diabetic neuropathy with emission tomography and magnetic resonance spectroscopy. Nucl Med Commun 2017; 38:275-284. [DOI: 10.1097/mnm.0000000000000653] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Siasios I, Valotassiou V, Kapsalaki E, Tsougos I, Georgoulias P, Fotiadou A, Ioannou M, Koukoulis G, Dimopoulos V, Fountas K. Magnetic Resonance Spectroscopy and Single-Photon Emission Computed Tomography in the Evaluation of Cerebral Tumors: A Case Report. J Clin Med Res 2016; 9:74-78. [PMID: 27924180 PMCID: PMC5127220 DOI: 10.14740/jocmr2775w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2016] [Indexed: 12/16/2022] Open
Abstract
In their daily clinical practice, physicians have to confront diagnostic dilemmas which cannot be resolved by the application of only one imaging technique. In this case report, we present a 66-year-old woman who was admitted to our institution for the surgical resection of a recently diagnosed brain tumor. The patient had a history of epileptic seizures and was hospitalized in the past for anti-phospholipid syndrome related to a non-Hodgkin lymphoma in remission. Magnetic resonance imaging (MRI) examination revealed an enhancing right parasagittal lesion with significant edema suggestive of a high grade glioma. Advanced MRI techniques including proton magnetic resonance spectroscopy (1H-MRS) showed findings compatible of glioma. An additional examination was performed as part of a protocol that we are routinely performing in our institution for all brain tumors including not only the gold standard advanced MRI techniques but also single-photon emission computed tomography (SPECT) with technetium-99m (Tc99m). Brain SPECT indicated the presence of a meningioma which was verified by the histopathology of the resected specimen. In conclusion, a multimodality approach for the pre-surgical assessment of brain tumors has significant advantages not only for the diagnosis but also for the evaluation of intracranial tumors histology.
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Affiliation(s)
- Ioannis Siasios
- Department of Neurosurgery, University Hospital of Larissa, Greece; Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, Buffalo, NY, USA
| | | | - Eftychia Kapsalaki
- Department of Diagnostic Radiology, University Hospital of Larissa, Greece
| | - Ioannis Tsougos
- Department of Medical Physics, University Hospital of Larissa, Greece
| | | | | | - Maria Ioannou
- Department of Pathology, University Hospital of Larissa, Greece
| | | | - Vassilios Dimopoulos
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, Buffalo, NY, USA
| | - Kostas Fountas
- Department of Neurosurgery, University Hospital of Larissa, Greece
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Role of magnetic resonance spectroscopy & diffusion weighted imaging in differentiation of supratentorial brain tumors. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2016. [DOI: 10.1016/j.ejrnm.2016.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Ciezka M, Acosta M, Herranz C, Canals JM, Pumarola M, Candiota AP, Arús C. Development of a transplantable glioma tumour model from genetically engineered mice: MRI/MRS/MRSI characterisation. J Neurooncol 2016; 129:67-76. [PMID: 27324642 DOI: 10.1007/s11060-016-2164-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/01/2016] [Indexed: 11/25/2022]
Abstract
The initial aim of this study was to generate a transplantable glial tumour model of low-intermediate grade by disaggregation of a spontaneous tumour mass from genetically engineered models (GEM). This should result in an increased tumour incidence in comparison to GEM animals. An anaplastic oligoastrocytoma (OA) tumour of World Health Organization (WHO) grade III was obtained from a female GEM mouse with the S100β-v-erbB/inK4a-Arf (+/-) genotype maintained in the C57BL/6 background. The tumour tissue was disaggregated; tumour cells from it were grown in aggregates and stereotactically injected into C57BL/6 mice. Tumour development was followed using Magnetic Resonance Imaging (MRI), while changes in the metabolomics pattern of the masses were evaluated by Magnetic Resonance Spectroscopy/Spectroscopic Imaging (MRS/MRSI). Final tumour grade was evaluated by histopathological analysis. The total number of tumours generated from GEM cells from disaggregated tumour (CDT) was 67 with up to 100 % penetrance, as compared to 16 % in the local GEM model, with an average survival time of 66 ± 55 days, up to 4.3-fold significantly higher than the standard GL261 glioblastoma (GBM) tumour model. Tumours produced by transplantation of cells freshly obtained from disaggregated GEM tumour were diagnosed as WHO grade III anaplastic oligodendroglioma (ODG) and OA, while tumours produced from a previously frozen sample were diagnosed as WHO grade IV GBM. We successfully grew CDT and generated tumours from a grade III GEM glial tumour. Freezing and cell culture protocols produced progression to grade IV GBM, which makes the developed transplantable model qualify as potential secondary GBM model in mice.
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Affiliation(s)
- Magdalena Ciezka
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica de Biociències, Edifici Cs, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Cerdanyola del Vallès, Spain
| | - Milena Acosta
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica de Biociències, Edifici Cs, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Cerdanyola del Vallès, Spain
| | - Cristina Herranz
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Research and Development Unit, Cell Therapy Program, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Josep M Canals
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Research and Development Unit, Cell Therapy Program, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Martí Pumarola
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Cerdanyola del Vallès, Spain
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Edifici V, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
| | - Ana Paula Candiota
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica de Biociències, Edifici Cs, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain.
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Cerdanyola del Vallès, Spain.
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain.
| | - Carles Arús
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica de Biociències, Edifici Cs, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Cerdanyola del Vallès, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
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Hu J, Wu W, Zhu B, Wang H, Liu R, Zhang X, Li M, Yang Y, Yan J, Niu F, Tian C, Wang K, Yu H, Chen W, Wan S, Sun Y, Zhang B. Cerebral Glioma Grading Using Bayesian Network with Features Extracted from Multiple Modalities of Magnetic Resonance Imaging. PLoS One 2016; 11:e0153369. [PMID: 27077923 PMCID: PMC4831834 DOI: 10.1371/journal.pone.0153369] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/29/2016] [Indexed: 11/24/2022] Open
Abstract
Many modalities of magnetic resonance imaging (MRI) have been confirmed to be of great diagnostic value in glioma grading. Contrast enhanced T1-weighted imaging allows the recognition of blood-brain barrier breakdown. Perfusion weighted imaging and MR spectroscopic imaging enable the quantitative measurement of perfusion parameters and metabolic alterations respectively. These modalities can potentially improve the grading process in glioma if combined properly. In this study, Bayesian Network, which is a powerful and flexible method for probabilistic analysis under uncertainty, is used to combine features extracted from contrast enhanced T1-weighted imaging, perfusion weighted imaging and MR spectroscopic imaging. The networks were constructed using K2 algorithm along with manual determination and distribution parameters learned using maximum likelihood estimation. The grading performance was evaluated in a leave-one-out analysis, achieving an overall grading accuracy of 92.86% and an area under the curve of 0.9577 in the receiver operating characteristic analysis given all available features observed in the total 56 patients. Results and discussions show that Bayesian Network is promising in combining features from multiple modalities of MRI for improved grading performance.
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Affiliation(s)
- Jisu Hu
- The Laboratory for Medical Electronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, China
| | - Wenbo Wu
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Bin Zhu
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Huiting Wang
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Renyuan Liu
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Xin Zhang
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Ming Li
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yongbo Yang
- Department of Neurosurgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Jing Yan
- Department of Oncology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Fengnan Niu
- Department of Pathology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chuanshuai Tian
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Kun Wang
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Haiping Yu
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | | | - Suiren Wan
- The Laboratory for Medical Electronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
- * E-mail: (SW); (YS); (BZ)
| | - Yu Sun
- The Laboratory for Medical Electronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, Jiangsu, China
- * E-mail: (SW); (YS); (BZ)
| | - Bing Zhang
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- * E-mail: (SW); (YS); (BZ)
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MR Spectroscopy evaluation of white matter signal abnormalities of different non-neoplastic brain lesions. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2016. [DOI: 10.1016/j.ejrnm.2015.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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33
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Abstract
Accurate glioma sampling is required for diagnosis and establishing eligibility for relevant clinical trials. MR-based perfusion and spectroscopy sequences supplement conventional MR in noninvasively predicting the areas of highest tumor grade for biopsy. We report the case of a patient with gliomatosis cerebri and multifocal patchy enhancement in whom the combination of advanced and conventional imaging attributes successfully guided a diagnostic biopsy.
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Affiliation(s)
| | | | - Rohan Ramakrishna
- Neurological Surgery, Weill Cornell Medical College ; Neurological Surgery, NewYork-Presbyterian/Weill Cornell Medical Center
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34
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Cui MH, Jayalakshmi K, Liu L, Guha C, Branch CA. In vivo (1)H MRS and (31)P MRSI of the response to cyclocreatine in transgenic mouse liver expressing creatine kinase. NMR IN BIOMEDICINE 2015; 28:1634-1644. [PMID: 26451872 DOI: 10.1002/nbm.3391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 08/05/2015] [Accepted: 08/11/2015] [Indexed: 06/05/2023]
Abstract
Hepatocyte transplantation has been explored as a therapeutic alternative to liver transplantation, but a means to monitor the success of the procedure is lacking. Published findings support the use of in vivo (31)P MRSI of creatine kinase (CK)-expressing hepatocytes to monitor proliferation of implanted hepatocytes. Phosphocreatine tissue level depends upon creatine (Cr) input to the CK enzyme reaction, but Cr measurement by (1)H MRS suffers from low signal-to-noise ratio (SNR). We examine the possibility of using the Cr analog cyclocreatine (CCr, a substrate for CK), which is quickly phosphorylated to phosphocyclocreatine (PCCr), as a higher SNR alternative to Cr. (1)H MRS and (31)P MRSI were employed to measure the effect of incremental supplementation of CCr upon PCCr, γ-ATP, pH and Pi /ATP in the liver of transgenic mice expressing the BB isoform of CK (CKBB) in hepatocytes. Water supplementation with 0.1% CCr led to a peak total PCCr level of 17.15 ± 1.07 mmol/kg wet weight by 6 weeks, while adding 1.0% CCr led to a stable PCCr liver level of 18.12 ± 3.91 mmol/kg by the fourth day of feeding. PCCr was positively correlated with CCr, and ATP concentration and pH declined with increasing PCCr. Feeding with 1% CCr in water induced an apparent saturated level of PCCr, suggesting that CCr quantization may not be necessary for quantifying expression of CK in mice. These findings support the possibility of using (31)P MRS to noninvasively monitor hepatocyte transplant success with CK-expressing hepatocytes.
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Affiliation(s)
- Min-Hui Cui
- Gruss Magnetic Resonance Research Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Radiology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Kamaiah Jayalakshmi
- Gruss Magnetic Resonance Research Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Laibin Liu
- Department of Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Chandan Guha
- Department of Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Craig A Branch
- Gruss Magnetic Resonance Research Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Radiology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, NY, USA
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35
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Shetty AN, Gabr RE, Rendon DA, Cassady CI, Mehollin-Ray AR, Lee W. Improving spectral quality in fetal brain magnetic resonance spectroscopy using constructive averaging. Prenat Diagn 2015; 35:1294-300. [PMID: 26348874 DOI: 10.1002/pd.4689] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/28/2015] [Accepted: 09/03/2015] [Indexed: 11/10/2022]
Abstract
PURPOSE A common source of loss in signal-to-noise ratio (SNR) in fetal brain magnetic resonance spectroscopy (MRS) is from fetal movement and temporal magnetic field drift. We investigated the feasibility of using constructive averaging strategies for improving the spectral quality and recovering the SNR loss from these effects. MATERIALS AND METHODS Eight fetuses, between 20 3/7 and 38 2/7 weeks' gestation, were scanned with MRS at 1.5 T. Single-voxel point-resolved spectroscopy of the fetal brain with TE = 144 ms (in one case additional TE = 288 ms) was performed in a dynamic mode, and individual spectra of 128 acquisitions were saved. With constructive averaging strategy individual acquisitions were corrected for phase variations and frequency drift before averaging. Constructively averaged spectra were compared to those using conventional averaging to evaluate differences in spectral quality and SNR. RESULTS The definition of key metabolite peaks was qualitatively improved using constructive averaging, including the doublet structure of lactate in one case. Constructive averaging was associated with SNR increases, ranging from 11% to 40%, and the SNR further improved in one case when outliers from severe motion were rejected before averaging. CONCLUSION Our results demonstrate the feasibility of using constructive averaging for improving SNR in fetal MRS, which is likely to improve the characterization of fetal brain metabolites.
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Affiliation(s)
- Anil N Shetty
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA.,Texas Children's Fetal Center, Houston, TX, USA
| | - Refaat E Gabr
- Department of Diagnostic and Interventional Imaging, The University of Texas Health Science Center, Houston, TX, USA
| | - David A Rendon
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA
| | - Christopher I Cassady
- Texas Children's Fetal Center, Houston, TX, USA.,Department of Radiology, Baylor College of Medicine, Houston, TX, USA.,Department of Pediatric Radiology, Texas Children's Hospital, Houston, TX, USA
| | - Amy R Mehollin-Ray
- Texas Children's Fetal Center, Houston, TX, USA.,Department of Radiology, Baylor College of Medicine, Houston, TX, USA.,Department of Pediatric Radiology, Texas Children's Hospital, Houston, TX, USA
| | - Wesley Lee
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA.,Texas Children's Fetal Center, Houston, TX, USA
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Magnetic resonance spectroscopy and imaging on fresh human brain tumor biopsies at microscopic resolution. Anal Bioanal Chem 2015; 407:6771-80. [PMID: 26123440 DOI: 10.1007/s00216-015-8847-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 06/04/2015] [Accepted: 06/10/2015] [Indexed: 12/16/2022]
Abstract
The metabolic composition and concentration knowledge provided by magnetic resonance spectroscopy (MRS) liquid and high-resolution magic angle spinning spectroscopy (HR-MAS) has a relevant impact in clinical practice during magnetic resonance imaging (MRI) monitoring of human tumors. In addition, the combination of morphological and chemical information by MRI and MRS has been particularly useful for diagnosis and prognosis of tumor evolution. MRI spatial resolution reachable in human beings is limited for safety reasons and the demanding necessary conditions are only applicable on experimental model animals. Nevertheless, MRS and MRI can be performed on human biopsies at high spatial resolution, enough to allow a direct correlation between the chemical information and the histological features observed in such biopsies. Although HR-MAS is nowadays a well-established technique for spectroscopic analysis of tumor biopsies, with this approach just a mean metabolic profile of the whole sample can be obtained and thus the high histological heterogeneity of some important tumors is mostly neglected. The value of metabolic HR-MAS data strongly depends on a wide statistical analysis and usually the microanatomical rationale for the correlation between histology and spectroscopy is lost. We present here a different approach for the combined use of MRI and MRS on fresh human brain tumor biopsies with native contrast. This approach has been designed to achieve high spatial (18 × 18 × 50 μm) and spectral (0.031 μL) resolution in order to obtain as much spatially detailed morphological and metabolical information as possible without any previous treatment that can alter the sample. The preservation of native tissue conditions can provide information that can be translated to in vivo studies and additionally opens the possibility of performing other techniques to obtain complementary information from the same sample.
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Han X, Kang J, Zhang J, Xiu J, Huang Z, Yang C, Sun X, Fu C, Liu Q. Can the signal-to-noise ratio of choline in magnetic resonance spectroscopy reflect the aggressiveness of endometrial cancer? Acad Radiol 2015; 22:453-9. [PMID: 25641318 DOI: 10.1016/j.acra.2014.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 09/11/2014] [Accepted: 12/09/2014] [Indexed: 12/13/2022]
Abstract
RATIONALE AND OBJECTIVES To differentiate endometrial cancer (ECa) from benign lesions in endometrial or in submucosa (BLs-ESm), and investigate whether the signal-to-noise ratio (SNR) of choline-containing compounds (Cho) obtained from three-dimensional (1)H magnetic resonance spectroscopy (MRS) is associated with the aggressiveness of ECa. MATERIALS AND METHODS Thirty-three patients with ECa and 15 patients with BLs-ESm underwent preoperative multivoxel (1)H MRS at 3 T MR. The amplitude of Cho peak of each voxel was recorded, and the corresponding SNR of Cho peak (ChoSNR) was calculated. The maximum ChoSNR (max ChoSNR) for each lesion was identified. The max ChoSNR of ECa and BLs-ESm, as well as type I ECa and type II ECa, was compared. The relationship between max ChoSNR and pathologic characteristics of tumors, including tumor grade, stage, type, and tumor size, was analyzed. RESULTS The mean max ChoSNR (±standard deviation [SD]) was 30.93 ± 16.89 for ECa and 10.40 ± 3.07 for BLs-ESm (P < .001). The mean max ChoSNR for type II ECa (48.54 ± 21.46) was higher than that for type I ECa (26.19 ± 12.02, P = .001). There were no significant differences among different grades (P = .449). The Spearman coefficient between max ChoSNR and stage was 0.423 (P = .014); the difference existed only between Ia and III ECa (P = .048). The Pearson coefficient between ChoSNR and tumor size was 0.515 (P = .002). CONCLUSIONS The max ChoSNR obtained from MRS can differentiate ECa from BLs and type I ECa and type II ECa, but cannot differentiate between each grade ECa and each International Federation of Gynecology and Obstetrics stage ECa. However, max ChoSNR increased with the increase in International Federation of Gynecology and Obstetrics stage and size of ECa.
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Affiliation(s)
- Xue Han
- Department of Radiology, Provincial Hospital Affiliated to Shandong University, 324#, Jingwu Weiqi Road, Jinan, PR China
| | - Jingxia Kang
- Department of Radiology, Linyi People's Hospital, Linyi, PR China
| | - Jie Zhang
- Department of Radiology, Provincial Hospital Affiliated to Shandong University, 324#, Jingwu Weiqi Road, Jinan, PR China
| | - Jianjun Xiu
- Department of Radiology, Provincial Hospital Affiliated to Shandong University, 324#, Jingwu Weiqi Road, Jinan, PR China
| | - Zhaoqin Huang
- Department of Radiology, Provincial Hospital Affiliated to Shandong University, 324#, Jingwu Weiqi Road, Jinan, PR China
| | - Chunrun Yang
- Department of Obstetrics and Gynecology, Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Xichao Sun
- Department of Pathology, Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Caixia Fu
- Siemens MRI Center, Shenzhen, PR China
| | - Qingwei Liu
- Department of Radiology, Provincial Hospital Affiliated to Shandong University, 324#, Jingwu Weiqi Road, Jinan, PR China.
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Sun Z, Jin F, Zhang J, Fu Y, Li W, Guo H, Zhang Y. Three cases of sporadic meningioangiomatosis with different imaging appearances: case report and review of the literature. World J Surg Oncol 2015; 13:89. [PMID: 25886050 PMCID: PMC4358853 DOI: 10.1186/s12957-015-0477-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 01/22/2015] [Indexed: 11/21/2022] Open
Abstract
Background Meningioangiomatosis (MA) is a rare meningiovascular malformation or hamartomatous lesion in the central nervous system. Radiographic findings of MA may show a variety of characteristics according to different histological components. We present three cases of sporadic MA with different imaging appearances in an attempt to identify specific imaging characteristics. Case presentation In case 1, an irregular hyperdense solid mass was localized in the left middle cranial fossa, demonstrating low and equal signal intensity on T1-weighted imaging (T1WI; TR/TE 2,048.9 ms/26.1 ms), high signal intensity with multiple flow void effect on T2-weighted imaging (T2WI; TR/TE 4,000 ms/106.4 ms), and significant and homogeneous enhancement on post-contrast magnetic resonance imaging (MRI). In case 2, the lesion in the right insular lobe showed a cystic-mural nodule pattern. The cystic content demonstrated similar density or signal intensity as cerebrospinal fluid, while the mural nodule demonstrated equal density or signal intensity on computed tomography (CT) and MRI. On post-contrast MRI, the mural nodule showed significant enhancement, but the cystic wall and content showed no enhancement. In case 3, a remarkably enhanced solid nodule was found in the cortex of the left parietal lobe with multiple small cysts surrounding it. This nodule showed low signal intensity on T2WI and diffusion-weighted imaging (DWI; TR/TE 6,000 ms/96.8 ms, b = 1,000 s/mm2). The preoperative diagnoses of the above three cases were meningioma, hemangioblastoma, and ganglioglioma. However, all were pathologically diagnosed as MA. Conclusion The presented cases demonstrate that MA may present with solid and cystic imaging patterns, which may include large cystic-mural nodules and small intra- and extra-cystic patterns. Although MA imaging diagnoses are difficult, several MRI signs may include specific characteristics, such as a flow void effect on T2WI and separating cysts in the cystic MA (as shown in our cases), gyriform hyperintensity on T2-fluid attenuated inversion recovery (FLAIR) sequence, and susceptibility artifacts on T2 gradient echo (GRE) sequences (as found in the literature).
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Affiliation(s)
- Zhihua Sun
- Department of Radiology, Tianjin Medical University General Hospital, No. 154, Anshan Dao Road, Heping District, Tianjin, 300052, People's Republic of China.
| | - Fei Jin
- Department of Radiology, Tianjin Medical University General Hospital, No. 154, Anshan Dao Road, Heping District, Tianjin, 300052, People's Republic of China.
| | - Jing Zhang
- Department of Radiology, Tianjin Medical University General Hospital, No. 154, Anshan Dao Road, Heping District, Tianjin, 300052, People's Republic of China.
| | - Yue Fu
- Department of Radiology, Tianjin Medical University General Hospital, No. 154, Anshan Dao Road, Heping District, Tianjin, 300052, People's Republic of China.
| | - Wei Li
- Department of Radiology, Tianjin Medical University General Hospital, No. 154, Anshan Dao Road, Heping District, Tianjin, 300052, People's Republic of China.
| | - Hong Guo
- Department of Radiology, Tianjin Medical University General Hospital, No. 154, Anshan Dao Road, Heping District, Tianjin, 300052, People's Republic of China.
| | - Yunting Zhang
- Department of Radiology, Tianjin Medical University General Hospital, No. 154, Anshan Dao Road, Heping District, Tianjin, 300052, People's Republic of China.
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Kaddah RO, Khalil ME. Malignant focal brain lesions. Value of MRS tumour biomarkers in preoperative prediction of grades of malignancy. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2014. [DOI: 10.1016/j.ejrnm.2014.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Stadler KL, Ober CP, Feeney DA, Jessen CR. Multivoxel proton magnetic resonance spectroscopy of inflammatory and neoplastic lesions of the canine brain at 3.0 T. Am J Vet Res 2014; 75:982-9. [DOI: 10.2460/ajvr.75.11.982] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Delgado-Goñi T, Julià-Sapé M, Candiota AP, Pumarola M, Arús C. Molecular imaging coupled to pattern recognition distinguishes response to temozolomide in preclinical glioblastoma. NMR IN BIOMEDICINE 2014; 27:1333-1345. [PMID: 25208348 DOI: 10.1002/nbm.3194] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 07/24/2014] [Accepted: 07/27/2014] [Indexed: 06/03/2023]
Abstract
Non-invasive monitoring of response to treatment of glioblastoma (GB) is nowadays carried out using MRI. MRS and MR spectroscopic imaging (MRSI) constitute promising tools for this undertaking. A temozolomide (TMZ) protocol was optimized for GL261 GB. Sixty-three mice were studied by MRI/MRS/MRSI. The spectroscopic information was used for the classification of control brain and untreated and responding GB, and validated against post-mortem immunostainings in selected animals. A classification system was developed, based on the MRSI-sampled metabolome of normal brain parenchyma, untreated and responding GB, with a 93% accuracy. Classification of an independent test set yielded a balanced error rate of 6% or less. Classifications correlated well both with tumor volume changes detected by MRI after two TMZ cycles and with the histopathological data: a significant decrease (p < 0.05) in the proliferation and mitotic rates and a 4.6-fold increase in the apoptotic rate. A surrogate response biomarker based on the linear combination of 12 spectral features has been found in the MRS/MRSI pattern of treated tumors, allowing the non-invasive classification of growing and responding GL261 GB. The methodology described can be applied to preclinical treatment efficacy studies to test new antitumoral drugs, and begets translational potential for early response detection in clinical studies.
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Affiliation(s)
- Teresa Delgado-Goñi
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain; Cancer Research UK and EPSRC Cancer Imaging Centre, Division of Radiotherapy and Imaging, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5PT, UK
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Tan LA, Boco T, Johnson AK, Rivas FF, Ahmed S, Byrd SE, Byrne RW. Magnetic resonance imaging characteristics of typical and atypical/anaplastic meningiomas - Case series and literature review. Br J Neurosurg 2014; 29:77-81. [PMID: 25221967 DOI: 10.3109/02688697.2014.957647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The histologic grades of meningiomas have a significant impact on the risk of recurrence, prognosis, and the need for adjuvant treatment such as radiation therapy. The purpose of this study is to investigate the magnetic resonance imaging (MRI) characteristics of typical and atypical/anaplastic meningiomas. METHODS The medical records of 32 consecutive patients who underwent meningioma resections between April 2004 and November 2006 were retrospectively reviewed. Preoperative MR studies were reviewed by board-certified neuroradiologists. Both univariate and multivariate analyses were used to analyze the MR characteristics of the typical and atypical/anaplastic meningiomas. A review of pertinent literature was also conducted. RESULTS Thirty-two patients were identified during the study period. Histopathologic examination of the surgical specimens revealed 27 (84.4% - Group I) typical meningiomas and 5 (15.6% - Group 2) atypical/anaplastic meningiomas. The chi-square test showed that restricted diffusion was much more likely to be present in Group 2 (p < 0.01), and the choline-to-creatinine (Cho/Cr) ratio was significantly higher in Group 2 (8.8 vs. 5.1, p = 0.01). The multivariate analysis confirmed that the atypical/anaplastic group is much more likely to have restricted diffusion (p = 0.02) and higher Cho/Cr ratios (p = 0.03). CONCLUSION Meningiomas with restricted diffusion and higher Cho/Cr ratio on MR spectroscopy are more likely to be atypical/anaplastic types. Preoperative MRI utilizing these sequences can provide important information which can be valuable to counsel patients regarding prognosis, risk of recurrence and the need for adjuvant radiation in addition to surgical resection.
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Affiliation(s)
- Lee A Tan
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
| | - Tibor Boco
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
| | - Andrew K Johnson
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
| | - Francisco F Rivas
- b Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center , Chicago , IL , USA
| | - Saud Ahmed
- c Rush Medical College , Chicago , IL , USA
| | - Sharon E Byrd
- b Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center , Chicago , IL , USA
| | - Richard W Byrne
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
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El Sherbeny AE, El-Shafey MH, Biomy SL, Shakal AA, Hefeda MM, Seiam AHR. Diagnostic yield of combined magnetic resonance spectroscopy and diffusion weighted imaging in intracranial neoplasms. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2014. [DOI: 10.1016/j.ejrnm.2014.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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44
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Darweesh AMN, Badawy ME, Hamesa M, Saber N. Magnetic resonance spectroscopy and diffusion imaging in the evaluation of neoplastic brain lesions. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2014. [DOI: 10.1016/j.ejrnm.2014.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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45
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Zhang N, Song X, Bartha R, Beyea S, D’Arcy R, Zhang Y, Rockwood K. Advances in high-field magnetic resonance spectroscopy in Alzheimer's disease. Curr Alzheimer Res 2014; 11:367-88. [PMID: 24597505 PMCID: PMC4108086 DOI: 10.2174/1567205011666140302200312] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 02/21/2014] [Accepted: 02/25/2014] [Indexed: 12/20/2022]
Abstract
Alzheimer's disease (AD) affects several important molecules in brain metabolism. The resulting neurochemical changes can be quantified non-invasively in localized brain regions using in vivo single-voxel proton magnetic resonance spectroscopy (SV 1H MRS). Although the often heralded diagnostic potential of MRS in AD largely remains unfulfilled, more recent use of high magnetic fields has led to significantly improved signal-to-noise ratios and spectral resolutions, thereby allowing clinical applications with increased measurement reliability. The present article provides a comprehensive review of SV 1H MRS studies on AD at high magnetic fields (3.0 Tesla and above). This review suggests that patterned regional differences and longitudinal alterations in several neurometabolites are associated with clinically established AD. Changes in multiple metabolites are identifiable even at early stages of AD development. By combining information of neurochemicals in different brain regions revealing either pathological or compensatory changes, high field MRS can be evaluated in AD diagnosis and in the detection of treatment effects. To achieve this, standardization of data acquisition and analytical approaches is needed.
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Affiliation(s)
- Ningnannan Zhang
- National Research Council Canada, Institute for Biodiagnostics – Atlantic, Halifax, Nova Scotia, Canada
- Department
of Radiology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaowei Song
- National Research Council Canada, Institute for Biodiagnostics – Atlantic, Halifax, Nova Scotia, Canada
- Division of Geriatric Medicine,
Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
- Neuroimaging Research Laboratory,
Biomedical Translational Imaging Centre, Halifax, Nova Scotia, Canada
| | - Robert Bartha
- Centre for Functional and Metabolic
Mapping, Robarts Research Institute, University of Western Ontario, London, Ontario, Canada
- Department of
Medical Biophysics, University of Western Ontario, London, Ontario, Canada
| | - Steven Beyea
- National Research Council Canada, Institute for Biodiagnostics – Atlantic, Halifax, Nova Scotia, Canada
- Neuroimaging Research Laboratory,
Biomedical Translational Imaging Centre, Halifax, Nova Scotia, Canada
- Department of Physics, Dalhousie
University, Halifax, Nova Scotia, Canada
| | - Ryan D’Arcy
- National Research Council Canada, Institute for Biodiagnostics – Atlantic, Halifax, Nova Scotia, Canada
- Department of Applied Science, Simon Fraser University, Surrey, British
Columbia, Canada
- Surrey Memorial Hospital, Fraser Health Foundation Innovation, Surrey, British Columbia,
Canada
| | - Yunting Zhang
- Department
of Radiology, General Hospital of Tianjin Medical University, Tianjin, China
| | - Kenneth Rockwood
- Division of Geriatric Medicine,
Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
- Centre for Health Care of the Elderly, Queen Elizabeth II Health Sciences Centre, Halifax, Canada
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Kanberoglu B, Moore NZ, Frakes D, Karam LJ, Debbins JP, Preul MC. Neuronavigation Using Three-Dimensional Proton Magnetic Resonance Spectroscopy Data. Stereotact Funct Neurosurg 2014; 92:306-14. [DOI: 10.1159/000363751] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 05/04/2014] [Indexed: 11/19/2022]
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Talacchi A, Santini B, Casagrande F, Alessandrini F, Zoccatelli G, Squintani GM. Awake surgery between art and science. Part I: clinical and operative settings. FUNCTIONAL NEUROLOGY 2013; 28:205-21. [PMID: 24139657 DOI: 10.11138/fneur/2013.28.3.205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Awake surgery requires coordinated teamwork and communication between the surgeon and the anesthesiologist, as he monitors the patient, the neuroradiologist as he interprets the images for intraoperative confirmation, and the neuropsychologist and neurophysiologist as they evaluate in real-time the patient's responses to commands and questions. To improve comparison across published studies on clinical assessment and operative settings in awake surgery, we reviewed the literature, focusing on methodological differences and aims. In complex, interdisciplinary medical care, such differences can affect the outcome and the cost-benefit ratio of the treatment. Standardization of intraoperative mapping and related controversies will be discussed in Part II.
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Discriminant Convex Non-negative Matrix Factorization for the classification of human brain tumours. Pattern Recognit Lett 2013. [DOI: 10.1016/j.patrec.2013.05.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kızılgöz V, Aydın H, Tatar İG, Hekimoğlu B, Ardıç S, Fırat H, Dönmez C. Proton magnetic resonance spectroscopy of periventricular white matter and hippocampus in obstructive sleep apnea patients. Pol J Radiol 2013; 78:7-14. [PMID: 24505219 PMCID: PMC3908511 DOI: 10.12659/pjr.889923] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Accepted: 10/23/2013] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The purpose of this study was to diagnose the hypoxic impairment by Magnetic resonance spectroscopy (MRS), an advanced MR imaging technique, which could not be visualised by routine imaging methods in patients with obstructive sleep apnea (OSA). MATERIAL/METHODS 20 OSA patients and 5 controls were included in this prospective research. MRS was performed on these 25 subjects to examine cerebral hypoxemia in specific regions (periventricular white matter and both hippocampi). Polysomnography was assumed as the gold standard. Statistical analysis was assessed by Mann-Whitney U test and Receiver operating characteristics (ROC) curve for NAA/Cho, NAA/Cr and Cho/Cr ratios. RESULTS In the periventricular white matter, NAA/Cho ratio in OSA patients was significantly lower than in the control group (p<0.05). There were no statistical differences between the OSA and the control group for NAA/Cho, NAA/Cr and Cho/Cr ratios for both hippocampal regions. Additionally, Cho/Cr ratio in the periventricular white matter region of OSA group was higher than in the control group (p<0.05). CONCLUSIONS Hypoxic impairment induced by repeated episodes of apnea leads to significant neuronal damage in OSA patients. MRS provides valuable information in the assessment of hypoxic ischemic impairment by revealing important metabolite ratios for the specific areas of the brain.
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Affiliation(s)
- Volkan Kızılgöz
- Department of Radiology, Afyonkarahisar State Hospital, Afyonkarahisar, Turkey
| | - Hasan Aydın
- Department of Radiology, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey
| | - İdil Güneş Tatar
- Department of Radiology, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey
| | - Baki Hekimoğlu
- Department of Radiology, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey
| | - Sadık Ardıç
- Department of Chest Diseases, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey
| | - Hikmet Fırat
- Department of Chest Diseases, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey
| | - Cem Dönmez
- Department of Neurology, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Ankara, Turkey
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Dennler M, Carrera I, Beckmann K, Ritz J, Rütten M, Kircher PR. Imaging diagnosis--Conventional and functional magnetic resonance imaging of a brain abscess in a goat. Vet Radiol Ultrasound 2013; 55:68-73. [PMID: 23663051 DOI: 10.1111/vru.12050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 03/27/2013] [Indexed: 11/30/2022] Open
Abstract
A 2-month-old female goat was presented for depressed mental status and multifocal central neurologic signs 3 weeks after hot-iron disbudding. Conventional magnetic resonance imaging (MRI) findings included a large intra axial mass in the left frontal lobe that was T2 hyperintense and T1 hypointense centrally with a contrast-enhancing peripheral capsule and perilesional T2 hyperintensity. A restrictive pattern was present in diffusion-weighted imaging. Magnetic resonance spectroscopy demonstrated an increased amount of succinate, acetate, amino acids, lipids; minimal amounts of lactate; and decreased amounts of N-acetyl aspartate and choline. A cerebral abscess due to Trueperella pyogenes was confirmed from necropsy and tissue culture.
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Affiliation(s)
- Matthias Dennler
- Division of Diagnostic Imaging, Vetsuisse Faculty University of Zurich, Winterthurerstrasse, 260 8057 Zurich, Switzerland
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