DESIGN AND OPTIMIZATION OF A BREAST COIL FOR MAGNETIC-RESONANCE-IMAGING

被引：13

作者：

SUN, L ^{[1
]}

OLSEN, JO ^{[1
]}

ROBITAILLE, PML ^{[1
]}

机构：

[1] OHIO STATE UNIV,DEPT RADIOL,MRI RES PROGRAM,1630 UPHAM DR,COLUMBUS,OH 43210

来源：

MAGNETIC RESONANCE IMAGING | 1993年 / 11卷 / 01期

关键词：

BREAST; RF COILS; FIELD OPTIMIZATION; SURFACE COILS;

D O I：

10.1016/0730-725X(93)90414-9

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：

Mathematical methods were implemented to optimize the configuration of specially designed breast coils leading to substantial improvements in magnetic field homogeneity. Multiple-turn shaped coils were constructed according to mathematically determined parameters derived from B1 field optimization calculations. Significant improvements in coil homogeneity were obtained without overcompromising quality factors and signal-to-noise ratios (S/N). Coil performance was verified using both phantom and breast images, revealing improved coil performance particularly in the region adjacent to the chest wall. These new coils are easily constructed and can be designed to accommodate various breast sizes. They can be utilized in the transmit/receive or receive only mode and can be doubly tuned for multinuclear spectroscopic studies. Moreover, nothing precludes their use to image both breasts simultaneously. The results demonstrate the ease of our approach and suggests that these methods can be feasibly applied to other surface coil designs.

引用

页码：73 / 80

页数：8

共 22 条

[1] Hall, Screening mammography, Am. J. Roentgenol., 147, pp. 195-197, (1986)
[2] Turner, Alcorn, Adler, Nuclear magnetic resonance in the diagnosis of breast cancer, Radiol. Clin. North Am., 26, pp. 673-687, (1988)
[3] Turner, Alcorn, Shorey, Stelling, Mategrano, Merten, Silver, Economou, Straus, Witt, Norusis, Carcinoma of the breast: Detection with MR imaging versus xeromammography, Radiology, 168, pp. 49-58, (1988)
[4] Strax, Control of breast cancer through mass screening, J. Am. Med. Assoc., 235, pp. 1600-1603, (1976)
[5] Sickles, Computer tomography scanning, transillumination, and magnetic resonance imaging of the breast, Recent Results Cancer Res., 105, pp. 31-36, (1987)
[6] Heywang, Fenzl, Hahn, Krischke, Edmaier, Eiermann, Bassermann, MR imaging of the breast: Comparison with mammography and ultrasound, J. Comput. Assist. Tomogr., 10, pp. 615-620, (1986)
[7] Heywang, Wolf, Pruss, Hilbertz, Eiermann, Permanetter, MR imaging of the breast with Gd-DTPA: Use and limitations, Radiology, 171, pp. 95-103, (1989)
[8] Kaiser, Zeitler, MR imaging of the breast: fat imaging sequences with and without Gd-DTPA, Radiology, 170, pp. 681-686, (1989)
[9] El Yousef, Duchesneau, Alfidi, Haaga, Bryan, LiPuma, Magnetic resonance imaging of the breast, Radiology, 150, pp. 761-766, (1984)
[10] El Yousef, Duchesneau, Magnetic resonance imaging of the human breast: A phase I trial, Radiol. Clin. North Am., 22, pp. 859-868, (1984)

← 1 2 3 →