ADRENAL-TISSUE CHARACTERIZATION WITH 0.5-T MR-IMAGING - VALUE OF T2-ASTERISK-WEIGHTED IMAGES

被引：10

作者：

ICHIKAWA, T

FUJIMOTO, H

MURAKAMI, K

TAUCHI, M

MOCHIZUKI, S

OHTOMO, K

UCHIYAMA, G

机构：

[1] Department of Radiology, Yamanashi Medical College, Nakakoma-Gun, Yamanashi, 409-38

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1993年 / 3卷 / 05期

关键词：

ADRENAL GLAND; MR; NEOPLASMS;

D O I：

10.1002/jmri.1880030509

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：

The authors investigated the value of magnetic resonance (MR) imaging at 0.5 T for distinguishing adrenal adenomas from adrenal metastases. The series included 23 adrenal adenomas (18 nonhyperfunctioning, five hyperfunctioning) and 23 adrenal metastases from various organs. Adrenal tumor-liver signal intensity ratios on T1-, T2-, and T2*-weighted images were calculated for adrenal tissue characterization. Adrenal adenomas were more precisely distinguished from adrenal metastases on T2*-weighted images (21 of 23, 91%) than on T2-weighted images (15 of 23, 65%). T1-weighted images were not useful for this distinction. In conclusion, T2*-weighted images were better than routine T2-weighted images for distinguishing adrenal adenomas from adrenal metastases. It can be postulated that the total signal intensity of adrenal adenomas, which contain some fat components, decreased on T2*-weighted images because of an out-of-phase effect.

引用

页码：742 / 745

页数：4

共 19 条

[1]

Copeland PM, The incidentally discovered adrenal mass, Ann Intern Med, 98, pp. 940-945, (1983)

[2]

Oliver TW, Bernardino ME, Miller JL, Et al., Isolated adrenal masses in nonsmall‐cell bronchogenic carcinoma, Radiology, 153, pp. 217-218, (1984)

[3]

Katz RL, Patel S, Mackay B, Fine needle aspiration cytology of the adrenal gland, Acta Cytol, 28, pp. 269-282, (1984)

[4]

Moon KL, Hricak H, Crooks LE, Et al., Nuclear magnetic resonance imaging of the adrenal gland: a preliminary report, Radiology, 147, pp. 155-160, (1983)

[5]

Glazer GM, Woolsey EJ, Borrello J, Et al., Adrenal tissue characterization using MR imaging, Radiology, 158, pp. 73-79, (1986)

[6]

Egglin TK, Hahn PF, Stark DD, MRI of the adrenal glands, Semin Roentgenol, 23, pp. 280-287, (1988)

[7]

Baker ME, Spritzer C, Blinder R, Herfkens RJ, Leight GS, Dunnick NR, Benign adrenal lesions mimicking malignancy in MR imaging: report of two cases, Radiology, 163, pp. 669-671, (1987)

[8]

Remer EM, Weinfeld RM, Glazer GM, Et al., Hyperfunctioning and nonhyperfunctioning benign adrenal cortical lesions: characterization and comparison with MR imaging, Radiology, 171, pp. 681-685, (1989)

[9]

Yashiro N, Suzuki M, Iio M, Is differential diagnosis of adrenal tumors possible with T2 weighted images?—concerning the lumor diameter dependency of T2 signal intensity of adrenal rumors, Jpn J Clin Radiol, 34, pp. 1465-1468, (1989)

[10]

Itoh H, Takahashi N, Kitade M, MRI of adrenal masses: study on signal intensity ratio and T2 value, Jpn J Magn Med, 10, pp. 99-105, (1990)

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