JPS6476842A - Apparatus for obtaining signal containing spin/spin relaxing time data - Google Patents

Apparatus for obtaining signal containing spin/spin relaxing time data

Info

Publication number
JPS6476842A
JPS6476842A JP62234359A JP23435987A JPS6476842A JP S6476842 A JPS6476842 A JP S6476842A JP 62234359 A JP62234359 A JP 62234359A JP 23435987 A JP23435987 A JP 23435987A JP S6476842 A JPS6476842 A JP S6476842A
Authority
JP
Japan
Prior art keywords
magnetic field
spin
echo signal
axis
period
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62234359A
Other languages
Japanese (ja)
Other versions
JPH0479256B2 (en
Inventor
Masaji Moriwaki
Shigefumi Kakimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP62234359A priority Critical patent/JPS6476842A/en
Publication of JPS6476842A publication Critical patent/JPS6476842A/en
Publication of JPH0479256B2 publication Critical patent/JPH0479256B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the image of the first echo signal of a sufficiently short echo time and the image of the second echo signal of a long echo time having no artifact, by obtaining the first echo signal only by the change-over of a 90 deg.-pulse and an inclined magnetic field without using a plurality of 180 deg.-pulses and obtaining the second echo signal using the 180 deg.-pulse. CONSTITUTION:The direction of the magnetic field generated by a magnet 1 for generating a static magnetic field is set to a Z-axis and an object to be examined 2, for example, a person is arranged in the static magnetic field by the magnet 1. A 90 deg.-pulse is applied using a coil 7 in such a state that a Y-axis direction inclined magnetic field Gy is applied for the purpose of slice selection at a period t1. As a result, the nuclear spin within the selected plane obtained by cutting the object 2 to be examined in a direction vertical to a Y-axis at the specific point on the Y-axis is excited. Next, an X-axis direction inclined magnetic field Gx is applied for a definite time at a period t2 and the nuclear spin is dephased. The direction of the X-axis direction inclined magnetic field Gx is changed over at a period t2 to form a reading magnetic field. The nuclear spin is rephased by this magnetic field Gx. The first echo signal P1 is obtained at this period t3. As mentioned above, a required image is obtained only by the successive change-over of an inclined magnetic field.
JP62234359A 1987-09-18 1987-09-18 Apparatus for obtaining signal containing spin/spin relaxing time data Granted JPS6476842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62234359A JPS6476842A (en) 1987-09-18 1987-09-18 Apparatus for obtaining signal containing spin/spin relaxing time data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62234359A JPS6476842A (en) 1987-09-18 1987-09-18 Apparatus for obtaining signal containing spin/spin relaxing time data

Publications (2)

Publication Number Publication Date
JPS6476842A true JPS6476842A (en) 1989-03-22
JPH0479256B2 JPH0479256B2 (en) 1992-12-15

Family

ID=16969768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62234359A Granted JPS6476842A (en) 1987-09-18 1987-09-18 Apparatus for obtaining signal containing spin/spin relaxing time data

Country Status (1)

Country Link
JP (1) JPS6476842A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8446148B2 (en) 2008-08-29 2013-05-21 Siemens Medical Solutions Usa, Inc. Long T1 artifact suppression techniques for magnetic resonance imaging

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076654A (en) * 1983-07-19 1985-05-01 ザ・リージェンツ・オブ・ザ・ユニバーシテイー・オブ・カリフォルニア High-speed nmr picture forming method using multidimensionalreconstitution technique and device thereof
JPS60146140A (en) * 1984-01-10 1985-08-01 Yokogawa Hokushin Electric Corp Method and apparatus of inspection using nuclear magnetic resonance
JPS60150739A (en) * 1983-11-25 1985-08-08 ゼネラル・エレクトリツク・カンパニイ Generation of nmr image
JPS60166853A (en) * 1984-10-30 1985-08-30 Yokogawa Hokushin Electric Corp Nmr image apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076654A (en) * 1983-07-19 1985-05-01 ザ・リージェンツ・オブ・ザ・ユニバーシテイー・オブ・カリフォルニア High-speed nmr picture forming method using multidimensionalreconstitution technique and device thereof
JPS60150739A (en) * 1983-11-25 1985-08-08 ゼネラル・エレクトリツク・カンパニイ Generation of nmr image
JPS60146140A (en) * 1984-01-10 1985-08-01 Yokogawa Hokushin Electric Corp Method and apparatus of inspection using nuclear magnetic resonance
JPS60166853A (en) * 1984-10-30 1985-08-30 Yokogawa Hokushin Electric Corp Nmr image apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8446148B2 (en) 2008-08-29 2013-05-21 Siemens Medical Solutions Usa, Inc. Long T1 artifact suppression techniques for magnetic resonance imaging

Also Published As

Publication number Publication date
JPH0479256B2 (en) 1992-12-15

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