FAST 3-DIMENSIONAL TIME-OF-FLIGHT MR-ANGIOGRAPHY OF THE INTRACRANIAL VASCULATURE

被引：24

作者：

TALAGALA, SL

JUNGREIS, CA

KANAL, E

MEYERS, SP

FOO, TKF

RUBIN, RA

APPLEGATE, GR

机构：

[1] Pittsburgh NMR Institute, Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, 15213

[2] Ge Medical Systems, Milwaukee, Wisconsin

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1995年 / 5卷 / 03期

关键词：

ANEURYSM; CEREBRAL; CEREBRAL BLOOD VESSELS; FLOW DYNAMICS; MR; CONTRAST ENHANCEMENT; GADOLINIUM; RAPID IMAGING; TIME-OF-FLIGHT STUDIES; VASCULAR STUDIES;

D O I：

10.1002/jmri.1880050316

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Magnetic resonance angiography is most commonly performed with the three-dimensional (3D) time-of-flight (TOF) technique. As currently practiced, this requires long image acquisition times (5-10 minutes). The authors show that the acquisition time of 3D TOF images can be reduced to less than 1 minute by using a very short TR (<10 msec). Under normal flow conditions, the major vessels of the circle of Willis were consistently well demonstrated on these fast 3D TOF images. Signal saturation was observed in studies of patients with abnormal blood flow. In those cases, it was demonstrated that serial acquisition of fast 3D TOF data during and after contrast agent administration could be used to overcome the saturation effects. Time-resolved fast 3D TOF imaging during and after contrast agent administration can also provide qualitative assessment of flow and may depict other features that cannot be observed in TOF studies with long imaging times.

引用

页码：317 / 323

页数：7

共 31 条

[1] Ruggieri PM, Laub GA, Masaryk TJ, Modic MT, Intracranial circulation: pulse‐sequence considerations In three‐dimensional (volume) MR anglography, Radiology, 171, pp. 785-791, (1989)
[2] Keller PJ, Drayer BP, Fram EK, Williams KD, Dumoulin CL, Souza SP, MR angiography with two‐dimensional acquisition and three‐dimensional display, Radiology, 173, pp. 527-532, (1989)
[3] Dumoulln CL, Souza SP, Walker MF, Wagle W, Three dimensional phase contrast angiography, Magnetic Resonance in Medicine, 9, pp. 139-149, (1989)
[4] Dumoulin CL, Hart HR, Magnetic resonance angiography, Radiology, 161, pp. 717-720, (1986)
[5] Schmalbrock P, Yuan C, Chakeres DW, Kohli J, Pelc NJ, Volume MR angiography: methods to achieve very short echo times, Radiology, 175, pp. 861-865, (1990)
[6] Parker DL, Yuan C, Blatter DD, MR angiography by multiple thin slab 3D acquisition, Magn Reson Med, 17, pp. 434-451, (1991)
[7] Edelman RR, Ann SS, Chien D, Et al., Improved tlme‐of‐flight MR angiography of the brain with magnetization transfer contrast, Radiology, 184, pp. 395-399, (1992)
[8] Pike GB, Hu BS, Glover GH, Enzmann DR, Magnetization transfer tlme‐of‐flight magnetic resonance angiography, Magn Reson Med, 25, pp. 372-379, (1992)
[9] Laub G, Lewin JS, Tkach JA, Fat‐suppressed time‐of‐flight MR angiography (abstr), Book of abstracts: Society of Magnetic Resonance in Medicine 1990, (1990)
[10] Purdy D, Cadena G, Laub G, The design of variable Up angle slab selection (TONE) pulses for improved 3–D MR angiography (abstr), Book of abstracts: Society of Magnetic Resonance in Medicine 1992, (1992)

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