目的 探討3.0 T 磁共振氫波譜成像(1H-MRS)在定量評(píng)價(jià)肝臟脂肪含量中的價(jià)值。
方法 前瞻性納入22例可獲得肝臟標(biāo)本的患者(活體肝移植供體候選者、部分需作肝段/肝葉切除的肝病患者等)作為研究對(duì)象,采用點(diǎn)分辨選擇性波譜序列(point resolved selective spectroscopy,PRESS)對(duì)研究對(duì)象的肝臟行1HMRS檢查,采用SAGE軟件包測(cè)定水峰峰值(PW)、脂峰峰值(PL)、水峰峰下面積(AW)及脂峰峰下面積(AL),計(jì)算肝細(xì)胞相對(duì)脂肪含量1(relative lipid content one,RLC1)及肝細(xì)胞相對(duì)脂肪含量2(relative lipid content two,RLC2)。于MR掃描后當(dāng)日至1周內(nèi)通過(guò)手術(shù)獲取肝臟標(biāo)本,并對(duì)標(biāo)本進(jìn)行組織學(xué)檢查,對(duì)肝臟脂肪含量進(jìn)行分級(jí),并將影像學(xué)數(shù)據(jù)與病理結(jié)果對(duì)照研究。
結(jié)果 22例患者中,7例無(wú)脂肪肝,11例輕度脂肪肝,4例中重度脂肪肝; 不同病理級(jí)別間比較,PL、AL、RLC1及RLC2的差異均有統(tǒng)計(jì)學(xué)意義(P lt;0.05),隨著病理分級(jí)升高,對(duì)應(yīng)的各指標(biāo)的值也相應(yīng)升高; PL、AL、RLC1及RLC2與脂變細(xì)胞百分含量(proportion of fatty degenerative cells,PFDC)之間存在線性正相關(guān)關(guān)系(P lt;0.05),以RLC1的相關(guān)系數(shù)最高(0.771 3)。
結(jié)論 1H-MRS能夠較精確地反應(yīng)脂肪肝的嚴(yán)重程度,有望替代有創(chuàng)性的肝穿刺活檢。
引用本文: 趙黎明,宋彬,陳光文,袁放,黃子星,陽(yáng)寧?kù)o. 3.0 T 1 H-MRS定量評(píng)價(jià)脂肪肝的價(jià)值探討. 中國(guó)普外基礎(chǔ)與臨床雜志, 2010, 17(1): 92-96. doi: 復(fù)制
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- 1. 范建高, 曾民德. 脂肪肝的研究進(jìn)展 [J]. 胃腸病學(xué)和肝病學(xué)雜志, 1999; 8(2): 149156.
- 2. Marrero JA, Fontana RJ, Su GL, et al. NAFLD may be a common underlying liver disease in patients with hepatocellular carcinoma in the United States [J]. Hepatology, 2002; 36(6): 13491354.
- 3. Bugianesi E, Leone N, Vanni E, et al. Expanding the natural history of nonalcoholic steatohepatitis: from cryptogenic cirrhosis to hepatocellular carcinoma [J]. Gastroenterology, 2002; 123(1): 134140.
- 4. 中華肝臟病學(xué)會(huì)脂肪肝和乙醇性肝病學(xué)組. 非酒精性肝病診斷標(biāo)準(zhǔn) [J]. 中華肝臟病雜志, 2003; 11(2): 71.
- 5. 中華肝臟病學(xué)會(huì)脂肪肝和乙醇性肝病學(xué)組. 酒精性脂肪性肝病診斷標(biāo)準(zhǔn) [J]. 中華肝臟病雜志, 2003; 11(2): 72.
- 6. 張華捷, 莊輝, 劉學(xué)恩. 脂肪肝的流行病學(xué)研究進(jìn)展 [J]. 中華流行病學(xué)雜志, 2004; 25(7): 630631.
- 7. 孫艷, 吳陽(yáng), 劉兵, 等. 酒精性肝病的研究進(jìn)展 [J]. 吉林大學(xué)學(xué)報(bào)(醫(yī)學(xué)版), 2006; 32(4): 733736.
- 8. 莊輝. 酒精性肝病的流行病學(xué) [J]. 中華肝臟病雜志, 2003; 11(11): 689.
- 9. 厲有名, 陳衛(wèi)星, 虞朝輝, 等. 浙江省酒精性肝病流行病學(xué)調(diào)查概況 [J]. 中華肝臟病雜志, 2003; 11(11): 647649.
- 10. 鄭瑞丹, 陸倫根, 孟家榕, 等. 非酒精性脂肪性肝病臨床和病理學(xué)研究 [J]. 中華肝臟病雜志, 2006; 14(6): 449452.
- 11. Te Sligte K, Bourass I, Sels JP, et al. Non alcoholic steatohepatitis:review of a growing medical problem [J]. Eur J Intern Med, 2004; 15(1): 1021.
- 12. Gholam PM, Kotler DP, Flancbaum LJ. Liver pathology in morbidly obese patients undergoing RouxenY gastric bypass surgery [J]. Obes Surg, 2002; 12(1): 4951.
- 13. Rinella ME, McCarthy R, Thakrar K, et al. Dualecho, chemical shift gradientecho magnetic resonance imaging to quantify hepatic steatosis: implications for living liver donation [J]. Liver Transpl, 2003; 9(8): 851856.
- 14. Machann J, Thamer C, Schnoedt B, et al. Hepatic lipid accumulation in healthy subjects: a comparative study using spectral fatselective MRI and volumelocalized 1HMR spectroscopy [J]. Magn Reson Med, 2006; 55(4): 913917.
- 15. Limanond P, Raman SS, Lassman C, et al. Macrovesicular hepatic steatosis in living related liver donors: correlation between CT and histologic findings [J]. Radiology, 2004; 230(1): 276280.
- 16. Thomas EL, Hamilton G, Patel N, et al. Hepatic triglyceride content and its relation to body adiposity: a magnetic resonance imaging and proton magnetic resonance spectroscopy study [J]. Gut, 2005; 54(1): 122127.
- 17. 范明霞, 田建明, 陸建平, 等. 活體1H磁共振波譜分析在大鼠脂肪肝中應(yīng)用價(jià)值的初步研究 [J]. 中國(guó)醫(yī)學(xué)影像技術(shù), 2004; 20(10): 15031505.
- 18. 蘇中振, 單鴻, 何炳鈞, 等. STEAM和 PRESS序列在脂肪肝定量診斷中應(yīng)用價(jià)值的對(duì)比研究 [J]. 中國(guó)介入影像與治療學(xué), 2008; 5(2): 9598.
- 19. Vuppalanchi R, Cummings OW, Saxena R, et al. Relationship among histoligic, radiologic, and biochemical assessments of hepatic steatosis: a study of human liver sample [J]. J Clin Gastroenterol, 2007; 41(2): 206210.
- 20. 梁長(zhǎng)虹, 劉于寶, 張中林, 等. 脂肪肝MR氫質(zhì)子波譜成像定量分析的初步研究 [J]. 中華放射學(xué)雜志, 2007; 41(1): 4346.