Journals / Turkish Journal of Gastroenterology / 1999 / Cilt: 10 - Sayı: 3

The role of dynamic MRI in the characterization of liver hemangiomas

Karaciğer hemanjiomlarının karakterizasyonunda dinamik MRG'nin rolü

Pages
211–215
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, no significant differences were found between SE T2-W images and dynamic multi-level MRI techniques in the characterization of hemangiomas.

📌 3 Key Takeaways

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Objective & Hypothesis:The purpose of this study was to compare the value of T2-W images with dynamic multi-level MR images in the diagnosis of liver hemangiomas.
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Key Findings & Data:The signal intensity on T2-W images and contrast enhancement patterns on dynamic images of all lesions were evaluated.
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Conclusion & Impact:In conclusion, no significant differences were found between SE T2-W images and dynamic multi-level MRI techniques in the characterization of hemangiomas.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Hemanjiyom · Karaciğer · Manyetik rezonans görüntüleme

Abstract

The purpose of this study was to compare the value of T2-W images with dynamic multi-level MR images in the diagnosis of liver hemangiomas. Thirty-six hemangiomas in sixteen patients were prospectively examined. The signal intensity on T2-W images and contrast enhancement patterns on dynamic images of all lesions were evaluated. All lesions showed significant hyperintensity on T2-W images. Three lesions demonstrated peripheral linear contrast enhancement, while 33 lesions showed peripheral nodular type enhancement. When the periferic nodular contrast enhancement pattern, the most common enhancement pattern, was accepted as the diagnostic criteria, the accuracy, sensitivity and specificity of this pattern were found to be 97%, 92% and 100% respectively. The accuracy, sensitivity and specificity of significant hyperintensity on T2-W images were 98%,100% and 97% respectively. In conclusion, no significant differences were found between SE T2-W images and dynamic multi-level MRI techniques in the characterization of hemangiomas.

Özet

Bu çalışmanın amacı karaciğer hemanjiomlarının tanısında T2 ağırlıklı görüntüler ile dinamik çok düzeyli manyetik rezonans görüntüleme tetkikinin etkinliğini karşılaştırmaktır. 16 hastadaki 36 hemanjiom prospektif olarak incelenmiştir. Tüm lezyonların T2 ağırlıklı sekanstaki sinyal intensiteleri ve kontrast tutma paternleri kaydedilmiştir. Tüm lezyonlar T2 ağırlıklı sekansta parlak hiperintens olarak izlendi. Üç lezyon periferik halkasal boyanma gösterirken, 33 lezyonda periferik nodüler kontrast tutulumu izlendi. En sık görülen patern olan periferik nodüler kontrast tutulumu tanı kriteri olarak alındığında doğruluk oranı %97, duyarlılığı %92, seçiciliği %100 bulundu. T2 ağırlıklı sekanstaki parlak hiperintensitenin doğruluk oranı, duyarlılığı ve seçiciliği %100'dü. Sonuç olarak, hemanjiomların karakterizasyonunda SE T2 ağırlıklı sekans ile çok düzeyli dinamik manyetik rezonans görüntüleme tetkiki arasında istatistiksel fark bulunmamıştır.

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Cite This Article

OBUZ, F., DİCLE, O., İĞCİ, E. (1999). The role of dynamic MRI in the characterization of liver hemangiomas. Turkish Journal of Gastroenterology, Cilt: 10 - Sayı: 3, 211–215. https://ajindex.com/articles/410549

References (15)

  1. Ziessman HA, Silverman PM, Patterson J et al. Improved detection of small cavernous hemangiomas of the liver with high-resolution three-headed SPECT. J Nucl Med 1991; 32: 2086-90
  2. Siegel A, Mazurek R. Early dynamic SPECT acqusition for the imaging of hepatic hemangiomas utilizing Tc-99m labeled red blood cells. Clin Nucl Med 1997; 22: 745-8
  3. Birnbaum BA, Weinreb JC, Megibow AJ, et al. Definitive diagnosis of hepatic hemangiomas: MR imaging versus Tc-99m-labeled red blood cell SPECT. Radiology 1990; 176: 95-101
  4. Brown RKJ, Gomes A, King W, et al. Hepatic hemangiomas:evaluation by magnetic resonance imaging and Tc-99m labelled red cell and single-photon emission CT. AJR 1987; 148: 125-9
  5. Stark DD, Felder RC, Wittenberg J, et al. Magnetic resonance imaging of cavernous hemangioma of the liver: tissue-specific characterization. AJR 1985; 145: 213-20
  6. Stark DD. MR imaging of focal liver masses. Radiology 1988; 168: 323-7
  7. Li KC, Glazer GM, Quint LE, et al. Distinction of hepatic cavernous hemangioma from hepatic metastases with MR imaging. Radiology 1988; 169: 409-15
  8. Lombardo DM, Baker MR, Spitzer CE, et al. Hepatic hemangiomas versus metastases: MR differentiation at 1.5 T. AJR 1990; 155: 55-9
  9. Ohtomo K, Itai Y, Yoshikawa K, et al. Hepatocellular carcinoma and cavernous hemangioma: differentiation with MR imaging. Radiology 1988; 168: 621-3
  10. McFarland EG, Mayo-Smith WW, Saini S, et al. Hepatic hemangiomas and malignant tumors: impoved differentiation with T2-W conventional spin-echo MR imaging. Radiology 1994; 193: 43-7
  11. Semelka RC, Brown ED, Ascher SM, et al. Hepatic hemangiomas: a multi-institutional study of appearance on T2-W and serial gadolinium-enhanced gradient-echo MR images. Radiology 1994; 192: 401-6
  12. Yamashita Y, Hatanaka Y, Yamamoto H, et al. Differential diagnosis of focal liver lesions: role of spin-echo and contrast-enhanced dynamic MR imaging. Radiology 1994; 193: 59-65
  13. Berger JF, Laissy JP, Limot O, et al. Differentiation between multiple liver hemangiomas and liver metastases of gastrinomas: value of enhanced MRI. J Compud Assist Tomogr 1996; 20: 349-55
  14. Whitney WS, Herfkens RJ, Jeffrey RB, et al. Dynamic breath-hold multiplanar spoiled gradient-recalled MR imaging with gadolinium enhancement for differentiating hepatic hemangiomas from malignancies at 1.5 T. Radiology 1993; 189: 863-70
  15. Larson RE, Semelka RC, Bagley AS, et al. Hypervascular malignant liver lesions: comparison of various M