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1. (WO2000050914) PORTABLE SYSTEM FOR MONITORING THE POLARIZATION LEVEL OF A HYPERPOLARIZED GAS DURING TRANSPORT
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2000/050914 International Application No.: PCT/US1999/013557
Publication Date: 31.08.2000 International Filing Date: 16.06.1999
Chapter 2 Demand Filed: 27.07.2000
IPC:
G01R 33/28 (2006.01) ,G01R 33/46 (2006.01)
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
28
Details of apparatus provided for in groups G01R33/44-G01R33/6496
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
44
using nuclear magnetic resonance (NMR)
46
NMR spectroscopy
Applicants:
HASSON, Kenton, C. [US/US]; US (UsOnly)
WHEELER, Bradley, A. [US/US]; US (UsOnly)
MEDI-PHYSICS, INC. [US/US]; 101 Carnegie Center Princeton, NJ 08540, US (AE, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZA, ZW)
Inventors:
HASSON, Kenton, C.; US
WHEELER, Bradley, A.; US
Agent:
RICHARDSON, Julie, H. ; Myers, Bigel, Sibley, & Sajovec, P.A. P.O. Box 37428 Raleigh, NC 27627, US
Priority Data:
60/121,22123.02.1999US
Title (EN) PORTABLE SYSTEM FOR MONITORING THE POLARIZATION LEVEL OF A HYPERPOLARIZED GAS DURING TRANSPORT
(FR) SYSTEME PORTABLE DE CONTROLE DU NIVEAU DE POLARISATION D'UN GAZ HYPERPOLARISE EN COURS DE TRANSPORT
Abstract:
(EN) A system, method, and computer program products and associated apparatus, to monitor and determine the polarization level of a quantity of hyperpolarized gas during transport. A portable device is configured to transmit an excitation pulse and analyze a response signal in transit to provide a polarization level corresponding to the hyperpolarized gas. Preferably, the monitoring system can provide magnetic field fluctuation feedback to the transport unit and adjust operating current to a solenoid. The system also can compensate for NMR frequency shifts that may appear in the measured response signal to provide a more accurate polarization level or 'real' T1 for the hyperpolarized gas.
(FR) La présente invention propose un système, un procédé et des produits de programme d'ordinateur et des appareils associés pour le contrôle et la détermination du niveau de polarisation d'une quantité de gaz hyperpolarisé en cours de transport. Un dispositif portable est prévu pour émettre une impulsion d'excitation et analyser un signal de réponse en transit pour fournir un niveau de polarisation correspondant au gaz hyperpolarisé. De préférence, le système de contrôle peut fournir une réaction de fluctuation de champ magnétique à l'unité de transport et régler un courant de fonctionnement à une électrovanne. Le système peut également compenser des décalages de fréquence de résonance magnétique nucléaire qui pourraient se produire dans le signal de réponse mesuré afin de fournir un niveau de polarisation plus précis ou « réel » (T1) concernant le gaz hyperpolarisé.
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Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SL, SZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)