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Fedeli L, Belli G, Ciccarone A, Coniglio A, Esposito M, Giannelli M, Sghedoni R, Tarducci R, Altabella L, Belligotti E, Benelli M, Bernardi L, Betti M, Caivano R, Carni M, Chiappiniello A, Cimolai S, Cretti F, Fulcheri C, Gasperi C, Giacometti M, Levrero F, Lizio D, Maieron M, Marzi S, Mascaro L, Mazzocchi S, Meliado G, Morzenti S, Niespolo A, Nocetti L, Noferini L, Oberhofer N, Orsingher L, Quattrocchi M, Ricci A, Savini A, Taddeucci A, Testa C, Tortoli P, Luchinat C, Tenori L, Gobbi G, Gori C, Busoni S, Mazzoni L. Multicenter comparison of MR scanners for quantitative diffusion weighted imaging: apparent diffusion coefficient dependence on acquisition plan and spatial position – preliminary results. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00475-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Belli G, Coniglio A, Bettarini S, Tortoli P, Fedeli L, Giannelli M, Mazzoni L, Nocetti L, Sghedoni R, Tarducci R, Belligotti E, Canzi C, Chiappiniello A, Cimolai S, Giovannini G, Lizio D, Marzi S, Mascaro L, Mazzocchi S, Meliadò G, Morzenti S, Niespolo A, Noferini L, Oberhofer N, Origgi D, Paruccini N, Quattrocchi M, Savini A, Solla I, Taddeucci A, Busoni S. Multicentre comparison of MR scanners (15T, 3T) for MR T1-T2 relaxometry. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00490-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Coniglio A, Fedeli L, Belli G, Ciccarone A, Esposito M, Giannelli M, Gobbi G, Gori C, Mazzoni L, Nocetti L, Sghedoni R, Tarducci R, Altabella L, Belligotti E, Benelli M, Betti M, Caivano R, Carnì M, Chiappiniello A, Cimolai S, Cretti F, Fulcheri C, Gasperi C, Giacometti M, Levrero F, Lizio D, Luchinat C, Maieron M, Marzi S, Mascaro L, Mazzocchi S, Meliadò G, Morzenti S, Noferini L, Oberhofer N, Quattrocchi M, Ricci A, Taddeucci A, Tenori L, Torresin A, Busoni S. 20. Diffusion MRI and ADC accuracy at the isocenter: An AIFM multisite comparison study. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Chiappiniello A, Tarducci R, Muscio C, Frisoni G, Bruzzone M, Bozzali M, Perani D, Tiraboschi P, Nigri A, Ambrosi C, Caulo M, Chipi E, Chiti S, Fainardi E, Ferraro S, Festari C, Gasparotti R, Ginestroni A, Giulietti G, Mascaro L, Navarra R, Nicolosi V, Parnetti L, Rosazza C, Serra L, Tagliavini F, Jovicich J. 22. Multicentric test-retest reproducibility of human hippocampal volumes with FreeSurfer 6.0: A comparison between standard and longitudinal hippocampal subfields segmentation streams applied to 3D T1, 3D FLAIR and high-resolution 2D T2 neuroimaging. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Fedeli L, Belli G, Ciccarone A, Coniglio A, Esposito M, Giannelli M, Gobbi G, Gori C, Mazzoni L, Nocetti L, Sghedoni R, Tarducci R, Altabella L, Belligotti E, Benelli M, Betti M, Caivano R, Carnì M, Chiappiniello A, Cimolai S, Cretti F, Fulcheri C, Gasperi C, Giacometti M, Levrero F, Lizio D, Luchinat C, Maieron M, Marzi S, Mascaro L, Mazzocchi S, Meliadò G, Morzenti S, Noferini L, Oberhofer N, Quattrocchi M, Ricci A, Taddeucci A, Tenori L, Torresin A, Busoni S. 21 Phase encoding direction and position effects on ADC in diffusion MRI: An AFIM multisite comparison study. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Marcantonini M, Pascolini F, Bernardini A, Brughini A, Cavalli A, Tarducci R. 96. Evaluation of the equivalent dose to the crystalline lens by dose equivalent Hp(3). Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Iacco M, Zucchetti C, Dipilato A, Lupattelli M, Podlesko A, Fulcheri C, Marcantonini M, Reggioli V, Aristei C, Tarducci R. 179. Whole brain radiotherapy with hippocampal sparing and Simultaneous Integrated Boost for patients with one to four metastases with Helical Tomotherapy. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Iacco M, Zucchetti C, Lupattelli M, Aristei C, Tarducci R. 182. Study of the accuracy of non-invasive fixation frames in brain treatments with Helical Tomotherapy. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Chiesa S, Bartoli FB, Longo S, Lupattelli M, Gatta R, Palumbo I, Balducci M, Tarducci R, Cusumano D, Masciocchi C, Lenkowicz J, Russo R, Floridi P, Dinapoli N, Valentini V, Aristei C. Delta Radiomics Features Analysis for the Prediction of Patients Outcomes in Glioblastoma Multiforme: The Generating Hypothesis Phase of GLI.F.A. Project. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lupattelli M, Chiesa S, Beghella Bartoli F, Palumbo I, Gatta R, Tarducci R, Dinapoli N, Balducci M, Aristei C, Valentini V. P04.90 Observational prospective multi-centric study of delta radiomics Features Analysis for the prediction of patients outcomes in GLIoblastoma multifome: GLI.F.A. Project. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Lupattelli
- Sezione di Radioterapia Oncologica, Dipartimento di Chirurgia e Scienze Biomedicali, Università di Perugia, Ospedale S. Maria della Misericordia, Perugia, Italy
| | - S Chiesa
- Fondazione Policlinico A. Gemelli IRCSS - Università Cattolica del Sacro Cuore, Dipartimento Scienze Radiologiche, Radioterapiche ed Ematologiche, Istituto di Radiologia, Rome, Italy
| | - F Beghella Bartoli
- Fondazione Policlinico A. Gemelli IRCSS - Università Cattolica del Sacro Cuore, Dipartimento Scienze Radiologiche, Radioterapiche ed Ematologiche, Istituto di Radiologia, Rome, Italy
| | - I Palumbo
- Sezione di Radioterapia Oncologica, Dipartimento di Chirurgia e Scienze Biomedicali, Università di Perugia, Ospedale S. Maria della Misericordia, Perugia, Italy
| | - R Gatta
- Fondazione Policlinico A. Gemelli IRCSS - Università Cattolica del Sacro Cuore, Dipartimento Scienze Radiologiche, Radioterapiche ed Ematologiche, Istituto di Radiologia, Rome, Italy
| | - R Tarducci
- Sezione di Radioterapia Oncologica, Dipartimento di Chirurgia e Scienze Biomedicali, Università di Perugia, Ospedale S. Maria della Misericordia, Perugia, Italy
| | - N Dinapoli
- Fondazione Policlinico A. Gemelli IRCCS, Dipartimento Scienze Radiologiche, Radioterapiche ed Ematologiche, Istituto di Radiologia, Roma, Italia, Rome, Italy
| | - M Balducci
- Fondazione Policlinico A. Gemelli IRCSS - Università Cattolica del Sacro Cuore, Dipartimento Scienze Radiologiche, Radioterapiche ed Ematologiche, Istituto di Radiologia, Rome, Italy
| | - C Aristei
- Sezione di Radioterapia Oncologica, Dipartimento di Chirurgia e Scienze Biomedicali, Università di Perugia, Ospedale S. Maria della Misericordia, Perugia, Italy
| | - V Valentini
- Fondazione Policlinico A. Gemelli IRCSS - Università Cattolica del Sacro Cuore, Dipartimento Scienze Radiologiche, Radioterapiche ed Ematologiche, Istituto di Radiologia, Rome, Italy
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Lupattelli M, Maranzano E, Bellavita R, Tarducci R, Latini R, Castagnoli P, Bufalari A, Corgna E, Pinaglia D, Rossetti R, Ribacchi R, Latini P. Adjuvant Radiochemotherapy in High-Risk Rectal Cancer Results of a Prospective Non-Randomized Study. Tumori 2018; 87:239-47. [PMID: 11693802 DOI: 10.1177/030089160108700406] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims and Background In 1990 the National Institutes of Health Consensus Conference recommended adjuvant combined therapy for patients with radically resected rectal cancer at high risk for relapse (ie, stage II-III). The purpose of our prospective non-randomized study was to verify the feasibility and effectiveness of postoperative radiochemotherapy in terms of improvement in disease-free and overall survival in this patient subgroup. Study design From January 1990 to October 1998, 191 consecutive patients with radically resected stage II-III rectal cancer were treated. A total of 159 patients with a 24-month follow-up were assessable for toxicity and survival. Anterior resection was performed in 129 (81%) and abdomino-perineal resection in 30 (19%) patients. Fifty-four (34%) stage II and 105 (66%) stage III patients entered the study. Within 45-60 days of surgery, all patients received 5-fluorouracil chemotherapy at the dose of 500 mg/m2 as an iv bolus on days 1-5, every 4 weeks, for 6 cycles. Chemotherapy cycles III and IV were administered at the same daily dose on radiotherapy days 1-3 and 29-31. Radiotherapy consisted of 45 Gy/25 fractions plus a boost dose of 5.4 Gy. Results After a median follow-up of 57 months (range, 25-123), overall recurrent disease was reported in 58 (36%) patients: local, systemic, and both local and systemic relapses in 12 (8%), 37 (23%) and 9 (6%) cases, respectively. According to local extension, recurrence rates were 15% and 48% in stage II and III, respectively. Five-year overall and disease-free survival were 71% and 66%, respectively. Overall survival was 87% in stage II and 62% in stage III patients, and disease-free survival was 84% and 56% in stage II and III disease, respectively. According to univariate and multivariate analyses, significant prognostic factors for better tumor control were: stage (II vs III, P <0.001), the number of involved nodes (≤3 vs >3, P <0.0001), and no extracapsular node invasion (P <0.0001). The recommended dose of the combined radiochemotherapy regimen was generally well tolerated. The incidence of any ≥ grade 3 acute toxicity (according to the WHO scale) was 13% diarrhea, 11% proctitis, 5% perineal dermatitis and 4% myelosuppression. Four (3%) patients had radiotherapy-related severe late toxicity which required surgery. Conclusions The study provided recurrence rates and survival similar to other adjuvant radiochemotherapy regimens published in the literature. However, in view of the low 5-year survival rate recorded in stage III patients, a different approach should be investigated.
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Affiliation(s)
- M Lupattelli
- Radiation Oncology Center, Policlinico Hospital of Perugia, Italy
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Iacco M, Saldi S, Zucchetti C, Dipilato A, Lancellotta V, Aristei C, Tarducci R. EP-1961: Classical Kaposi’s sarcoma treatment with helical tomotherapy: impact of polyurethane foam cushion. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32270-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ribaldi F, Marizzoni M, Jovicich J, Ferrari C, Bosch B, Bartrés‐Faz D, Müller BW, Wiltfang J, Fiedler U, Roccatagliata L, Picco A, Nobili F, Blin O, Bombois S, Lopes R, Bordet R, Sein J, Ranjeva J, Didic M, Gros‐Dagnac H, Payoux P, Zoccatelli G, Alessandrini F, Beltramello A, Bargallo N, Ferretti A, Caulo M, Aiello M, Cavaliere C, Soricelli A, Parnetti L, Tarducci R, Floridi P, Tsolaki M, Constantinides M, Drevelegas A, Rossini PM, Marra C, Schonknecht P, Hensch T, Hoffmann K, Kuijer J, Visser PJ, Barkhof F, Frisoni GB. [P3–062]: ACROSS‐SESSION REPRODUCIBILITY OF AUTOMATIC WHITE MATTER HYPERINTENSITIES SEGMENTATION: A EUROPEAN MULTI‐SITE 3T STUDY. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.06.1272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Moira Marizzoni
- IRCCS Istituto Centro San Giovanni di Dio FatebenefratelliBresciaItaly
| | | | | | - Beatriz Bosch
- Alzheimer's Disease and Other Cognitive Disorders Unit, Neurology DepartmentIDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
| | | | | | | | - Ute Fiedler
- Institutes and Clinics of the University Duisburg‐EssenEssenGermany
| | - Luca Roccatagliata
- Department of NeuroscienceOphthalmology and Genetics University of GenoaGenoaItaly
| | - Agnese Picco
- Neurology Unit, IRCCS AOU San MartinoUniversity of GenoaGenoaItaly
| | | | | | | | - Renaud Lopes
- INSERM U1171 / Neuroradiology DepartmentUniversity HospitalLilleFrance
| | - Regis Bordet
- Service de Pharmacologie‐Hôpital Huriez‐CHRULilleFrance
| | - Julien Sein
- CRMBM‐CEMEREM, UMR 7339Aix Marseille UniversityMarseilleFrance
| | - Jean‐Philippe Ranjeva
- CIC‐UPCET, CHU La Timone, AP‐HM, UMR CNRS‐Universite de la MediterraneeMarseilleFrance
| | - Mira Didic
- Service de Neurologie et NeuropsychologieMarseilleFrance
| | - Helene Gros‐Dagnac
- INSERM. Imagerie Cérébrale Et Handicaps Neurologiquies, UMR825ToulouseFrance
| | | | | | | | | | - Núria Bargallo
- Imaging Diagnostic Center Radiology DepartmentHospital Clínic i Provincial de BarcelonaBarcelonaSpain
| | - Antonio Ferretti
- Department of Neuroscience, Imaging and Clinical SciencesUniversity G. d'AnnunzioChietiItaly
| | | | | | | | | | | | | | - Piero Floridi
- Perugia General HospitalNeuroradiology UnitPerugiaItaly
| | - Magda Tsolaki
- Aristotle University of ThessalonikiThessalonikiGreece
| | | | | | | | | | - Peter Schonknecht
- Department of Psychiatry and PsychotherapyUniversity Hospital Leipzig, GermanyLeipzigGermany
| | | | | | - Joost Kuijer
- VU University Medical CenterAmsterdamNetherlands
| | - Pieter Jelle Visser
- Department of NeurologyAlzheimer Centre, VU Medical CentreAmsterdamNetherlands
- Maastricht UniversityMaastrichtNetherlands
| | - Frederik Barkhof
- Radiology & Nuclear MedicineVU University Medical CenterAmsterdamNetherlands
| | - Giovanni B. Frisoni
- Memory Clinic and LANVIE ‐ Laboratory of Neuroimaging of AgingUniversity Hospitals and University of GenevaGenevaSwitzerland
- Laboratory of Alzheimer's Neuroimaging and Epidemiology ‐ LANEIRCCS Institute ‐ The Saint John of God Clinical Research CentreBresciaItaly
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Iacco M, Zucchetti C, Lupattelli M, Aristei C, Fulcheri C, Tarducci R. EP-1578: Frameless intracranial radiosurgery with Helical Tomotherapy: preliminary results. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32013-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Iacco M, Zucchetti C, Lupattelli M, Dipilato A, Aristei C, Tarducci R. EP-1636: Evaluation of the accuracy in frame-less image-guided radiotherapy and radiosurgery. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32071-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
Two processing methods of fMRI data are proposed: vector orthogonalization and Fisher transformation of correlation coefficients (cc) distribution. The former is based on orthogonalization of vectors V (time course of signal intensity) and R (noise) to make V independent from R. The latter is based on Fisher transformation of cc distribution. From this distribution, by usual statistical tests, it is possible to detect the values of the cc that are significantly different from the mean in order to select activated pixels.
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Didona A, Zucchetti C, Dipilato A, Iacco M, Panizza M, Frattegiani A, Bini V, Aristei C, Tarducci R. EP-1693: Constant dose rate VMAT and step-and-shoot IMRT in head and neck cancer: a comparative plan analysis. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32944-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Saetta D, D’Arpino A, Rongoni A, Sabatini P, Beneventi S, Susta F, Iacco M, Baffa N, Tarducci R. PP-029 Study of radionuclide impurities in 18f-metil-choline: Setup of the measurement geometry for high purity germanium gamma ray spectrometer. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Marcantonini M, Lancellotta V, Montesi G, Falcinelli L, Aristei C, Tarducci R. Protocol implementation of total marrow irradiation (TMI) plus total lymphoid irradiation (TLI) using helical tomotherapy (HT). Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Didona A, Zucchetti C, Aristei C, Tarducci R. Volumetric modulated arc therapy for delivery of head and neck radiotherapy: Comparison between constant and variable dose rate. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Iacco M, Zucchetti C, Marcantonini M, Dipilato A, Lancellotta V, Aristei C, Tarducci R. Dosimetric comparison between four irradiation techniques for breast cancer. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Dipilato A, Zucchetti C, Iacco M, Tarducci R. Evaluation of superficial dose in tomotherapy: A phantom study. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Didona A, Zucchetti C, Dipilato A, Fulcheri C, Tarducci R. Evaluation of delivery accuracy of head and neck radiotherapy with constant dose rate VMAT. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Chiappiniello A, Fulcheri C, Tarducci R. The role of Pinnacle3 scripting in streamlining IMRT and 3D-CRT treatment planning. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Sghedoni R, Coniglio A, Belli G, Busoni S, Ciccarone A, Esposito M, Giannelli M, Mazzoni L, Nocetti L, Tarducci R, Altabella I, Anoja R, Berardi P, Bertolini N, Biagini C, Carnì M, Cesana P, Cimolai S, Clemente S, Fabbri E, Fedeli L, Filice S, Levrero F, Meliadò G, Mordini N, Morzenti S, Moscato A, Oberhofer N, Paruccini N, Ricci A, Romeo N, Scelfo D, Toncelli A, Torresin A, Tosetti M, Zucca I, Gori C. AIFM multicenter intercomparison of MR scanners for proton spectroscopy – preliminary results. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Iacco M, Rongoni A, Beneventi S, Saetta D, Susta F, Sabatini P, Marconi M, Tarducci R. Assessment of radionuclide impurities in 18F-Metil-Choline (18F-FMeCh). Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Mangialasche F, Westman E, Kivipelto M, Muehlboeck JS, Cecchetti R, Baglioni M, Tarducci R, Gobbi G, Floridi P, Soininen H, Kłoszewska I, Tsolaki M, Vellas B, Spenger C, Lovestone S, Wahlund LO, Simmons A, Mecocci P. Classification and prediction of clinical diagnosis of Alzheimer's disease based on MRI and plasma measures of α-/γ-tocotrienols and γ-tocopherol. J Intern Med 2013; 273:602-21. [PMID: 23343471 DOI: 10.1111/joim.12037] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND The aim of this study was to evaluate the accuracy of combined structural magnetic resonance imaging (MRI) measures and plasma levels of vitamin E forms, including all eight natural vitamin E congeners (four tocopherols and four tocotrienols) and markers of vitamin E oxidative/nitrosative damage, in differentiating individuals with Alzheimer's disease (AD) and mild cognitive impairment (MCI) from cognitively intact control (CTL) subjects. METHODS Overall, 81 patients with AD, 86 with MCI and 86 CTL individuals were enrolled from the longitudinal multicentre AddNeuroMed study. MRI and plasma vitamin E data were acquired at baseline. MRI scans were analysed using Freesurfer, an automated segmentation scheme which generates regional volume and cortical thickness measures. Orthogonal partial least squares to latent structures (OPLS), a multivariate data analysis technique, was used to analyse MRI and vitamin E measures in relation to AD and MCI diagnosis. RESULTS The joint evaluation of MRI and plasma vitamin E measures enhanced the accuracy of differentiating individuals with AD and MCI from CTL subjects: 98.2% (sensitivity 98.8%, specificity 97.7%) for AD versus CTL, and 90.7% (sensitivity 91.8%, specificity 89.5%) for MCI versus CTL. This combination of measures also identified 85% of individuals with MCI who converted to clinical AD at follow-up after 1 year. CONCLUSIONS Plasma levels of tocopherols and tocotrienols together with automated MRI measures can help to differentiate AD and MCI patients from CTL subjects, and to prospectively predict MCI conversion into AD. Our results suggest the potential role of nutritional biomarkers detected in plasma-tocopherols and tocotrienols-as indirect indicators of AD pathology, and the utility of a multimodality approach.
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Affiliation(s)
- F Mangialasche
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.
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Aristei C, Palumbo I, Cucciarelli F, Cavalli A, Tarducci R, Raymondi C, Perrucci E, Cavaliere A, Latini P, Rulli A. Partial breast irradiation with interstitial high-dose-rate brachytherapy in early breast cancer: Results of a phase II prospective study. Eur J Surg Oncol 2009; 35:144-50. [DOI: 10.1016/j.ejso.2008.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2008] [Revised: 05/22/2008] [Accepted: 06/02/2008] [Indexed: 10/21/2022] Open
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Sarchielli P, Presciutti O, Alberti A, Tarducci R, Gobbi G, Galletti F, Costa C, Eusebi P, Calabresi P. A 1H magnetic resonance spectroscopy study in patients with obstructive sleep apnea. Eur J Neurol 2008; 15:1058-64. [PMID: 18717729 DOI: 10.1111/j.1468-1331.2008.02244.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND PURPOSE Repeated episodes of hypoxia, hypercapnia and transient blood pressure elevation in obstructive sleep apnea syndrome (OSAS) may damage neutral structures and induce cerebral metabolic impairment. This study aimed to determine the impact of OSAS on cerebral metabolites measured by (1)H magnetic resonance spectroscopy ((1)H -MRS). METHODS Twenty OSAS patients underwent standard overnight polysomnography and (1)H-MRS separately. Proton volumes of interest (VOIs) were placed in frontal and midtemporal regions bilaterally. RESULTS Significantly lower values of the N-acetylaspartate (NAA)/creatine (Cr) ratio were found in frontal regions (P < 0.004) compared with 20 age-matched control subjects. A significant increase in the myo-inositol (Ins)/Cr ratio was evident bilaterally in temporal and frontal regions (P < 0.00002 and P < 0.04). Choline (Cho)/Cr ratio values were also significantly greater in temporal regions (P < 0.00001). A significant negative correlation (r = -0.51, P < 0.03) was found between the apnea-hypopnea index (AHI) and NAA/Cr ratio in the frontal regions of OSAS patients. CONCLUSIONS Reduction in the NAA/Cr ratio in frontal regions of OSAS patients could be related to neural loss. Increase in the Cho/Cr ratio in temporal regions and Ins/Cr ratio in both frontal and temporal regions could be interpreted as evidence of membrane breakdown and reactive gliosis, respectively, consequent to repeated episodes of hypoxia in OSAS.
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Affiliation(s)
- P Sarchielli
- Neurologic Clinic, University of Perugia, Perugia, Italy
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Ribaldi F, Jovicich J, Ferrari C, Bosch B, Bartrés-Faz D, Müller BW, Wiltfang J, Fiedler U, Montalti M, Roccatagliata L, Picco A, Nobili F, Blin O, Bombois S, Lopes R, Bordet R, Sein J, Ranjeva JP, Didic M, Gros-Dagnac H, Payoux P, Alessandrini F, Beltramello A, Bargallo N, Ferretti A, Caulo M, Aiello M, Cavaliere C, Soricelli A, Parnetti L, Tarducci R, Floridi P, Tsolaki M, Constantinides M, Drevelegas A, Rossini P, Marra C, Schonknecht P, Hensch T, Hoffmann KT, Kuijer J, Visser PJ, Barkhof F, Frisoni GB, Marizzoni M. IC‐P‐126: VOLUMETRIC ACCURACY OF A FULLY AUTOMATIC TOOL FOR WHITE MATTER HYPERINTENSITIES (WMHS) SEGMENTATION. Alzheimers Dement 2006. [DOI: 10.1016/j.jalz.2018.06.2192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Federica Ribaldi
- University of BresciaBresciaItaly
- Istituto di Ricovero e Cura a Carattere ScientificoCentro San Giovanni di Dio FatebenefratelliBresciaItaly
| | | | - Clarissa Ferrari
- Istituto di Ricovero e Cura a Carattere ScientificoCentro San Giovanni di Dio FatebenefratelliBresciaItaly
| | - Beatriz Bosch
- Alzheimer's Disease and Other Cognitive Disorders Unit, Hospital ClínicInstitut d'Investigacions Biomediques August Pi i SunyerBarcelonaSpain
| | - David Bartrés-Faz
- Department of Psychiatry and Clinical PsychobiologyUniversitat de Barcelona, August Pi i Sunyer Biomedical Research InstituteBarcelonaSpain
| | | | - Jens Wiltfang
- Department of Psychiatry and PsychotherapyUniversity Medical CenterGoettingenGermany
| | - Ute Fiedler
- Institutes and Clinics of the University Duisburg-EssenEssenGermany
| | - Martina Montalti
- Istituto di Ricovero e Cura a Carattere ScientificoCentro San Giovanni di Dio FatebenefratelliBresciaItaly
| | - Luca Roccatagliata
- Department of NeuroscienceOphthalmology and Genetics University of GenoaGenoaItaly
| | - Agnese Picco
- Neurology Unit, Istituto di Ricovero e Cura a Carattere Scientifico, Azienda Ospedaliera Universitaria, San MartinoUniversity of GenoaGenoaItaly
| | | | - Olivier Blin
- Aix-Marseille University-Centre National de la Recherche ScientifiqueMarseilleFrance
| | | | - Renaud Lopes
- INSERM, Neuroradiology DepartmentUniversity HospitalLilleFrance
| | - Régis Bordet
- Service de Pharmacologie-Hôpital Huriez- Centre Hospitalier Régional UniversitaireLilleFrance
| | - Julien Sein
- Centre de Résonance Magnétique Biologique et Médicale‐Centre d'Exploration Métabolique par Résonance MagnétiqueAix Marseille UniversityMarseilleFrance
| | - Jean-Philippe Ranjeva
- Centre Investigation Clinique ‐ Unité de Pharmacologie Clinique et d'Évaluations Thérapeutiques, Centre Hospitalier Universitaire, La Timone, Assistance Publique ‐ Hopitaux de MarseilleCentre National de la Recherche Scientifique ‐Universite de la MediterraneeMarseilleFrance
| | - Mira Didic
- Service de Neurologie et NeuropsychologieMarseilleFrance
| | | | - Pierre Payoux
- INSERM, Imagerie Cérébrale et Handicaps NeurologiquesToulouseFrance
| | | | | | - Núria Bargallo
- Imaging Diagnostic Center Radiology DepartmentHospital Clínic i Provincial de BarcelonaBarcelonaSpain
| | - Antonio Ferretti
- Department of Neuroscience, Imaging and Clinical SciencesUniversity G. d'AnnunzioChietiItaly
| | | | - Marco Aiello
- Istituto di Ricovero e Cura a Carattere Scientifico, SDN Istituto di Ricerca Diagnostica e Nucleare SpANaplesItaly
| | - Carlo Cavaliere
- Istituto di Ricovero e Cura a Carattere Scientifico, SDN Istituto di Ricerca Diagnostica e Nucleare SpANaplesItaly
| | - Andrea Soricelli
- IR SDN per la Ricerca e l'Alta Formazione in Diagnostica NucleareNaplesItaly
| | | | | | - Piero Floridi
- Perugia General HospitalNeuroradiology UnitPerugiaItaly
| | - Magda Tsolaki
- First Department of NeurologyAHEPA University Hospital, MakedoniaThessalonikiGreece
| | | | | | - Paolo Rossini
- Department of Gerontology, Neurosciences and OrthopedicsCatholic UniversityRomeItaly
| | | | - Peter Schonknecht
- LIFE, Leipzig Research Center for Civilization DiseasesLeipzigGermany
| | | | | | - Joost Kuijer
- VU University Medical CenterAmsterdamNetherlands
| | - Pieter Jelle Visser
- Alzheimer Center and Department of Neurology, Amsterdam NeuroscienceVU University Medical CenterAmsterdamNetherlands
| | - Frederik Barkhof
- Institutes of Neurology and Healthcare EngineeringUniversity CollegeLondonUnited Kingdom
| | - Giovanni B. Frisoni
- Istituto di Ricovero e Cura a Carattere ScientificoCentro San Giovanni di Dio FatebenefratelliBresciaItaly
- Memory Clinic and Laboratory of Neuroimaging of AgingGenevaSwitzerland
| | - Moira Marizzoni
- Istituto di Ricovero e Cura a Carattere ScientificoCentro San Giovanni di Dio FatebenefratelliBresciaItaly
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Aristei C, Guerrieri P, Anselmo P, Armellini R, Tarducci R, Rulli A, Latini P, Menghini A. Sister chromatid exchange and micronuclei frequency in early-stage breast cancer patients: preliminary results of a prospective observational study. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)91039-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Sarchielli P, Presciutti O, Tarducci R, Gobbi G, Alberti A, Pelliccioli GP, Chiarini P, Gallai V. Localized (1)H magnetic resonance spectroscopy in mainly cortical gray matter of patients with multiple sclerosis. J Neurol 2002; 249:902-10. [PMID: 12140676 DOI: 10.1007/s00415-002-0758-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The brain water fraction (R), the brain water transverse relaxation time (T2), the atrophy index (alpha) and the absolute concentration of the principal brain metabolites (NAA, Cho and Cr) were measured by localized proton magnetic resonance spectroscopy in the occipito-parietal cortex (mainly gray matter) of 15 relapsing-remitting (R-R) multiple sclerosis (MS) patients, 15 secondary progressive (SP) MS patients and 8 healthy subjects. Significantly lower values of N-acetylaspartate (NAA), creatine (Cr) and the NAA/Cr ratio in the occipito-parietal cortex were detected in SP MS patients than in R-R MS and control subjects (p < 0.01). Moreover, MS patients showed shorter T2 water relaxation times and reduced brain water fraction compared with controls. Higher atrophy indices were also detected in the mainly occipito-parietal gray matter of MS patients, particularly in those with the progressive form. These findings suggest that the pathological process in MS is not limited to either white matter lesions or normal-appearing white matter but extends into the cortical gray matter (occipito-parietal), particularly in the progressive form of the disease. This can involve changes in neural metabolism or neural shrinkage and neuron loss. The significant increase in atrophy indices could be the expression of the relatively higher cerebrospinal fluid signal from the occipito-parietal cortex, even in the absence of obvious cortical atrophy.
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Affiliation(s)
- P Sarchielli
- Neurologic Clinic, Neuroscience Department, Policlinico Monteluce, Via E. Dal Pozzo, 06126 Perugia, Italy.
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Catani M, Cherubini A, Howard R, Tarducci R, Pelliccioli GP, Piccirilli M, Gobbi G, Senin U, Mecocci P. (1)H-MR spectroscopy differentiates mild cognitive impairment from normal brain aging. Neuroreport 2001; 12:2315-7. [PMID: 11496102 DOI: 10.1097/00001756-200108080-00007] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This study aimed to characterize the white matter biochemical profile of healthy elderly subjects, mild cognitive impairment (MCI) subjects, and early Alzheimer's disease (AD) patients. We used proton magnetic resonance spectroscopy ((1)H-MRS) to measure myo-inositol, creatine, N-acetylaspartate (NAA) and choline levels from a volume of interest located in the paratrigonal white matter bilaterally. A significantly higher myo-inositol/creatine ratio was found in MCI subjects and AD patients than in controls. The NAA/creatine ratio was reduced in AD patients in the left hemisphere compared to control subjects. The choline/creatine ratio was not significantly different among the three groups. These data suggest that MCI is different from normal brain aging, having a white matter biochemical pattern similar to AD.
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Affiliation(s)
- M Catani
- 1Institute of Gerontology and Geriatrics , University of Perugia, Italy
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Catani M, Cherubini A, Tarducci R, Polidori MC, Piccirilli M, Gobbi G, Pelliccioli GP, Senin U, Mecocci P. The brain of the elderly between normality and pathology: techniques and technologies for the evaluation. Arch Gerontol Geriatr Suppl 2001; 7:77-80. [PMID: 11431048 DOI: 10.1016/s0167-4943(01)00123-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M Catani
- Institute of Gerontology and Geriatrics, University of Perugia, Italy
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Sarchielli P, Pelliccioli GP, Tarducci R, Chiarini P, Presciutti O, Gobbi G, Gallai V. Magnetic resonance imaging and 1H-magnetic resonance spectroscopy in amyotrophic lateral sclerosis. Neuroradiology 2001; 43:189-97. [PMID: 11305749 DOI: 10.1007/s002340000472] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We aimed to increase confidence in the combined use of MRI and proton MR spectroscopy (1H-MRS) in diagnosis of amyotrophic lateral sclerosis (ALS). We investigated 12 patients with ALS, seven definite and five probable, taking into account clinical measures of motor neuron function. On T2-weighted images we found high signal in the corticospinal tract in six and low signal in the primary motor cortex in seven of the 12 patients. Atrophy of the precentral gyrus was apparent in all the patients apart from one with probable ALS. Absolute quantification of cerebral metabolites using 1H-MRS demonstrated a significantly lower mean concentration of N-acetylaspartate (NAA) in the precentral gyrus of patients with probable and definite ALS (8.5 +/- 0.62) than in control subjects (10.4 +/- 0.71; P < 0.001). NAA concentration in primary motor cortex correlated with Norris scale scores (r = 0.30; P < 0.0001) but not with the ALS Functional Rating Scale score or disease duration. Significantly lower levels of NAA were detected in patients with low signal in the motor cortex than in those without (P < 0.01). Mean choline (Cho) and creatine (Cr) values did not differ between patients with ALS and controls.
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Affiliation(s)
- P Sarchielli
- Neurological Clinic, Policlinico Monte Luce, Perugia, Italy.
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Sarchielli P, Presciutti O, Pelliccioli GP, Tarducci R, Gobbi G, Chiarini P, Alberti A, Vicinanza F, Gallai V. Absolute quantification of brain metabolites by proton magnetic resonance spectroscopy in normal-appearing white matter of multiple sclerosis patients. Brain 1999; 122 ( Pt 3):513-21. [PMID: 10094259 DOI: 10.1093/brain/122.3.513] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The aim of this research was to obtain an absolute quantification of the N-acetyl-aspartate, choline, creatine and phosphocreatine levels in normal-appearing white matter by means of 1H magnetic resonance spectroscopy in a group of multiple sclerosis patients (27 with the relapsing-remitting form and 13 with the secondary progressive form). These values were compared with those of a group of 12 age-matched healthy control subjects. A significant decrease in the N-acetyl-aspartate concentration was found in normal-appearing white matter of frontal and parietal brain areas in multiple sclerosis patients compared with the same areas in control subjects. This reduction was more evident in progressive patients. The decrease in the N-acetyl-aspartate concentration in normal-appearing white matter significantly correlated with the Expanded Disability Status and the lesional load. No significant change was found in the concentration of creatine or choline. This finding concurs with previous evidence of heterogeneity in the multiple sclerosis pathological process which is not confined to the lesions and involves not only myelin, but also axons, even in white matter which appears normal on MRI.
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Affiliation(s)
- P Sarchielli
- Neurologic Clinic, University of Perugia, Italy.
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Sarchielli P, Presciutti O, Tarducci R, Gobbi G, Alberti A, Pelliccioli GP, Orlacchio A, Gallai V. 1H-MRS in patients with multiple sclerosis undergoing treatment with interferon beta-1a: results of a preliminary study. J Neurol Neurosurg Psychiatry 1998; 64:204-12. [PMID: 9489531 PMCID: PMC2169932 DOI: 10.1136/jnnp.64.2.204] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND In vivo magnetic resonance spectroscopy (MRS) has been widely used to assess biochemical changes which occur in demyelinating lesions in white matter of patients with multiple sclerosis. It has been suggested that metabolic variations evidenced by MRS are sensitive indicators of the effects of immunomodulatory treatments in this disease. Given the recent finding of an increase in the disease activity in patients with multiple sclerosis treated with interferon (IFN) beta-1a in the first period of treatment,1H MRS was used to investigate further the modification in brain metabolic indices, particularly in the first phase of IFN beta treatment. METHODS A 1H MRS study was performed on five patients with relapsing-remitting multiple sclerosis who were being treated with intramuscular IFN beta-1a (6 million units/week) for six months and on five untreated patients. The mean age, duration of the disease, and expanded disability status scores (EDSS) of the two groups were similar. Patients were evaluated at the beginning of the study and in the first, third, and sixth months of treatment. RESULTS In the multiple sclerosis white matter lesions, N-acetylaspartate (NAA), choline (Cho), inositol (Ins), and creatine (Cr) peaks did not vary significantly over the entire period of the study in the untreated group. In the treated group there was a significant increase in the Cho peak area at the first month compared with the pretreatment period, and this increase continued in the third and sixth months (p<0.001). A slight but not significant rise in the Cho peak was also found in normal appearing white matter in the patient group undergoing treatment with IFN beta-1a. The increase in Cho and the lack of significant changes in Cr and NAA peaks induced a significant rise in Cho/Cr and Cho/NAA ratios over the entire period of treatment compared with those at the beginning of the study (p<0.02 and p<0.005 respectively). In the treated group there was a slight but significant increase in the Ins peak in the first month (p<0.05) but in the third and sixth months of treatment the Ins values returned to the pretreatment range. CONCLUSIONS IFN beta-1a has an impact on metabolite concentrations in multiple sclerosis lesions measured by proton MRS. The increase in Cho, Cho/NAA, and Cho/Cr ratios in multiple sclerosis lesions reinforces the view that they are an index of active or recent demyelination and could support the clinical, neuroradiological and immunological evidence showing an increase in disease activity during the first period of treatment with IFN beta-1a. On the other hand, the increase in the Cho peak could be indicative of a rise in membrane turnover in multiple sclerosis lesions or a remodelling of plaques which is not necessarily due to a de novo immune mediated demyelination.
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Affiliation(s)
- P Sarchielli
- Neurologic Clinic, University of Perugia, Italy.
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Parnetti L, Tarducci R, Palumbo B, Pippi M, Mastriforti R, Gobbi G, Pelliccioli O. In vivo neurochemical characteristics of normal and pathological aging of the brain: Role of magnetic resonance spectroscopy. Arch Gerontol Geriatr 1998. [DOI: 10.1016/s0167-4943(98)80057-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Parnetti L, Tarducci R, Presciutti O, Lowenthal DT, Pippi M, Palumbo B, Gobbi G, Pelliccioli GP, Senin U. Proton magnetic resonance spectroscopy can differentiate Alzheimer's disease from normal aging. Mech Ageing Dev 1997; 97:9-14. [PMID: 9223122 DOI: 10.1016/s0047-6374(97)01877-0] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In order to evaluate the pattern of proton magnetic resonance spectroscopy (1H-MRS) in the gray and white matter of patients with Alzheimer's disease (AD) and healthy controls, a cross-sectional study was carried out on 13 consecutive AD patients and 7 healthy older subjects who were referred to the Day-Hospital for diagnostic assessment. All examinations were performed on a 1.5 Tesla whole-body scanner. Volumes of interest were selected in both the gray (temporal region) and the white (frontal region) matter. N-acetyl group, total creatine, total choline and myo-inositol were quantified referring the metabolite peak area to the unsuppressed water peak area acquired under the same conditions, and the ratio was expressed in arbitrary units. A significant decrease in N-acetyl-aspartate (NAA) in both gray and white matter and an increase in myo-inositol (mI) in gray matter of AD patients were observed. The gray matter NAA/mI ratio clearly separated the two groups. White matter mI was significantly associated with severity and duration of dementia. No association with age was documented. It can be concluded that in vivo 1H-MRS can contribute to the knowledge of pathophysiology of AD, giving neurochemical details of both gray and white matter. In particular, the gray matter NAA/ml ratio seems to be able to differentiate normal cerebral aging from Alzheimer's disease.
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Affiliation(s)
- L Parnetti
- Medical School, Perugia University, Italy.
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Parnetti L, Lowenthal DT, Presciutti O, Pelliccioli GP, Palumbo R, Gobbi G, Chiarini P, Palumbo B, Tarducci R, Senin U. 1H-MRS, MRI-based hippocampal volumetry, and 99mTc-HMPAO-SPECT in normal aging, age-associated memory impairment, and probable Alzheimer's disease. J Am Geriatr Soc 1996; 44:133-8. [PMID: 8576501 DOI: 10.1111/j.1532-5415.1996.tb02428.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE To better understand how to differentiate the "in vivo" normal aging brain from pathological conditions, namely dementia of the Alzheimer type (DAT), by means of magnetic resonance imaging (MRI), single photon emission computerized tomography (SPECT), and proton magnetic resonance spectroscopy (1H-MRS), to show neuroanatomical, perfusional and neurochemical details, respectively. DESIGN 1H-MRS, MRI-based hippocampal volumetry and 99mTc-HMPAO SPECT were performed in healthy older subjects as well as patients suffering from age-associated memory impairment (AAMI) and dementia of Alzheimer type (DAT). SUBJECTS AND SETTING Eighteen subjects were selected from those referred to an outpatient clinic for diagnostic evaluation of cognitive impairment entered the study. Six patients fulfilled NINCDS-ADRDA diagnostic criteria for DAT, six subjects were affected by AAMI, and six cognitively healthy subjects, selected from among relatives of the patients, were defined as controls. METHODS The 1H-MRS and MRI studies were performed on a 1.5 Tesla NMR-imaging system equipped with a spectroscopy research package. SPECT scans were performed on a Gamma 11 computer system. FINDINGS 1H-MRS showed significantly lower N-acetylasparatate concentration in DAT and AAMI compared with controls. Conversely, mean inositol concentration was significantly higher in DAT than in controls, whereas AAMI subjects registered intermediate values. MRI measurements showed significantly reduced volumes of hippocampal formations in DAT and AAMI groups compared with controls. Finally, 99mTc-HMPAO SPECT showed a significant frontal, temporo-parietal, and occipital hypoperfusion in DAT patients only. CONCLUSIONS These findings support the hypothesis of a continuum among the three conditions studied, or at least between AAMI and DAT, where AAMI seems to be an early, monosymptomatic stage of Alzheimer disease. Accepting this view, it would be questionable to maintain the term "age-associated memory impairment" as a discrete entity.
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Affiliation(s)
- L Parnetti
- Sezione di Gerontologia e Geriatria, Università di Perugia, Italy
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