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Titolo:
Heavily T2-weighted MR imaging of white matter tracts in the hypothalamus:Normal and pathologic demonstrations
Autore:
Saeki, N; Sunami, K; Kubota, M; Murai, F; Takanashi, J; Iuchi, T; Yamamura, A;
Indirizzi:
Chiba Univ, Sch Med, Dept Neurol Surg, Chuo Ku, Chiba 2608670, Japan ChibaUniv Chiba Japan 2608670 eurol Surg, Chuo Ku, Chiba 2608670, Japan Chiba Univ, Sch Med, Dept Pediat, Chiba, Japan Chiba Univ Chiba JapanChiba Univ, Sch Med, Dept Pediat, Chiba, Japan Kawatetsu Chiba Hosp, Chiba, Japan Kawatetsu Chiba Hosp Chiba JapanKawatetsu Chiba Hosp, Chiba, Japan Ctr Canc, Chiba, Japan Ctr Canc Chiba JapanCtr Canc, Chiba, Japan
Titolo Testata:
AMERICAN JOURNAL OF NEURORADIOLOGY
fascicolo: 8, volume: 22, anno: 2001,
pagine: 1468 - 1475
SICI:
0195-6108(200109)22:8<1468:HTMIOW>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
TEMPORAL-LOBE; FORNIX; ASYMMETRY; AMNESIA; SCANS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Saeki, N Chiba Univ, Sch Med, Dept Neurol Surg, Chuo Ku, Inohana 1-8-1, Chiba 2608670, Japan Chiba Univ Inohana 1-8-1 Chiba Japan 2608670 hiba 2608670, Japan
Citazione:
N. Saeki et al., "Heavily T2-weighted MR imaging of white matter tracts in the hypothalamus:Normal and pathologic demonstrations", AM J NEUROR, 22(8), 2001, pp. 1468-1475

Abstract

BACKGROUND AND PURPOSE: The MR appearance of white matter tracts in the hypothalamus and the role of the hypothalamus as a memory mechanism have not been sufficiently described in clinical settings. Heavily T2-weighted black-and-white reversed (T2R) images were assessed to reveal their visualization and clinical significance. METHODS: One hundred healthy subjects and three patients with hypothalamiclesions underwent fast spin-echo MR imaging to reveal the postcommissural fornix (PF) and mammillothalamic tract (MT). RESULTS: The PF was identifiable in axial and/or coronal sections in all healthy subjects. No remarkable asymmetry of its size or course was evident. Both anteroposterior and vertical dimensions ranged from 10.5 to 14 mm. The MT was visible in one or two axial sections above the mammillary body in 64% of healthy subjects and in a coronal section in 36%. Two patients with glioblastoma multiforme and lacunar infarct at the hypothalamus presented with anterograde amnesia; T2R imaging revealed involvement of both the PF and NIT. The third patient had a suprasellar craniopharyngioma with PF injurysparing the NIT resulting from surgical manipulation and was free of memory deficit. Anterograde amnesia was evident only when both the PF and NIT were injured. CONCLUSION. T2R images have made a high rate of detection of the PF and MTpossible and could provide a more detailed correlation of hypothalamic neuroanatomy and memory mechanism in clinical settings.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:35:03