디지털콘텐츠학회 논문지 (Journal of Digital Contents Society)

  • 제11권3호
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  • Pages.283-290
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  • 2010
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  • 1598-2009(pISSN)
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  • 2287-738X(eISSN)
한국디지털콘텐츠학회 (Digital Contents Society)
권호 표지

전립선 MRI에서 사용하는 1.5T 경직장 코일과 3.0T 위상 배열 코일의 성능 비교 평가

Comparative assessment of a 1.5T endorectal coil and a 3.0T phased-array coil available for prostate MRI

  • 투고 : 2010.04.13
  • 심사 : 2010.09.27
  • 발행 : 2010.09.30
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초록

1.5T에서 경직장 코일과 3.0T의 위상 배열 코일을 이용하여 신호대 잡음비를 비교하여 3.0T의 위상 배열 코일의 유용성을 제시한다. 전립선암으로 진단받은 환자 40명을 대상으로 1.5T MR scanner에서는 경직장 표면 코일과 3.0T MR scanner에서는 위상 배열 코일을 이용하여 T2 강조 영상, T1 강조영상, 확산 강조 영상을 각각 획득 후 전립선의 Central Zone(CZ)과 Peripheral Zone(PZ)에서 Right Peripheral Zone(PZ)과 Left Peripheral Zone(PZ) 세 부위에서 신호 강도(signal intensity)측정을 하였다. 정량적 분석방법으로 관심영역의 신호대 잡음비(signal to noise ratio)를 구하고 평균화 하여 1.5T MR scanner로 획득한 그룹과 3.0T MR scanner로 획득한 그룹에서의 신호대 잡음비를 비교하였다. 3.0T MR scanner에서 위상 배열 코일을 사용한 경우 1.5T MR scanner에서 경직장 코일을 사용한 경우보다 신호대 잡음비가 증가됨을 알 수 있었다.

The effectiveness of 3.0T phase array coil images was tested by comparing signal-to-noise ratios for the same coil images relative to 1.5T endorectal coil images. Signal intensities were measured in the three regions of prostate, central and peripheral (right and left) after 40 patients with prostate cancer were imaged during the period between Jan. 2008 and Oct. 2009 with T2 W, T1 W, and DW images obtained respectively using endorectal coil on a 1.5T MR scanner and phase array coil on a 3.0T MR scanner. For quantitative analysis, comparisons of average SNRs for the same ROIs were made between groups scanned with a 1.5T and a 3.0T MR scanner. The signal-to-noise ratios were shown to increase more sharply when using a phase array coil at a 3.0T MR scanner compared to using an endorectal coil at a 1.5T MR scanner.

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참고문헌

  1. Silverberg E, Boring CC, "Squires TS: Cancer statistics, Cancer," J Clin, Vol. 40, No. 1, pp. 9-26, 1990. https://doi.org/10.3322/canjclin.40.1.9
  2. Tae Joo Jeon, "18F-FDG-PET/CT in Prostate Cancer, Nucl Med Mol Imaging," Vol. 42, No. 0, pp. 116-120, 1992.
  3. Epstein JI, Walsh PC, Carmichael M, et al," Pathologic and clinical findings to predict tumor extent of nonpalpable(stage T1c) prostate cancer," JAMA, Vol. 271, No.5, pp. 368-374, 1994. https://doi.org/10.1001/jama.271.5.368
  4. Anast JW, Andriole GL, Bismar TA, et al," Relating biopsy and clinical variables to radical prostatectomy findings: can insignificant and advanced prostate cancer be predicted in a screening population?," Urology, Vol. 64, No. 3, pp. 544-550, 2004. https://doi.org/10.1016/j.urology.2004.04.008
  5. Augustin H, Hammerer PG, Graefen M, et al," Insignificant prostate cancer in radical prostatectomy specimen: time trends and preoperative prediction," Eur Urol, Vol. 43, No. 5, pp. 455-460, 2003. https://doi.org/10.1016/S0302-2838(03)00139-8
  6. Salo JO, Kivisaari L, Rannikko S, et al, "Computerized tomography and transrectal ultrasound in the assessment of local extension of prostatic carcinoma before radical retropubic prostatectomy," J Urol, Vol. 137, No. 0, pp. 435-438, 1987 https://doi.org/10.1016/S0022-5347(17)44059-6
  7. Tiguert R, Gheiler EL, Tefilli MV, et al," Lymph node size does not correlate with the presence of prostate cancer metastasis," Urol, Vol. 53, No. 2, pp. 367-371, 1999. https://doi.org/10.1016/S0090-4295(98)00518-4
  8. Yu KK, Hricak H, "Imaging Prastate cancer," Radiol Clin North, Vol. 38, No. 3, pp. 59-85, 2000. https://doi.org/10.1016/S0033-8389(05)70150-0
  9. Bezzi M, Kressel HY, Allen KS, et al," Prostatic carcinoma: staging with MR imaging at 1.5T," Radiology, Vol. 169, No. 2, pp. 339-346, 1998.
  10. Martin JF, Hajek P, Baker L, et al, "Inflatable surface coil for MR imaging of the prostate," Radiology, Vol. 167, No. 1, pp. 268-270, 1998.
  11. Schnall MD, Lenkinski RE, Pollack HM, et al, "Prostate : MR imaging with an endorectal surface coil," Radiology, Vol. 172, No. 2, pp. 570-574, 1989. https://doi.org/10.1148/radiology.172.2.2748842
  12. Chen CC, Lee RC, Lin JK, et al, "How accurate is magnetic resonance imaging in restaging rectal cancer in patients receiving preoperative combined chemoradiotherapy?," Dis Colon Rectum, Vol. 48, No. 4, pp. 722-728, 2005. https://doi.org/10.1007/s10350-004-0851-1
  13. Hussian SM, Stoker J, Schouten WR, et al, "Fistula in ano : Endoanal sonography versus endoanal MR imaging in classification," Radiology, Vol. 200, No. 2, pp. 475-481, 1996. https://doi.org/10.1148/radiology.200.2.8685344
  14. Stoker J, Hussian SM, Van Kempen D, et al, "Endorectal coil in MR imaging of anal fistula," AJR Am J Roentgenol, Vol. 166, No. 13, pp. 360-362, 1996. https://doi.org/10.2214/ajr.166.2.8553948
  15. de Lange EE, Fechner RE, Edge SB, et al, "Preoperative staging of rectal carcinoma with MR imaging: surgical and histopathologic correlation," Radiology, Vol. 176, No. 1, pp. 623-628, 1990. https://doi.org/10.1148/radiology.176.3.2389016
  16. Chan TW, Kressel HY, Milestone B, et al, "Rectal carcinoma: staging at MR imaging with endorectal surface coil," Radiology, Vol. 181, No. 2, pp. 461-467, 1991. https://doi.org/10.1148/radiology.181.2.1924789
  17. Schnall MD, Furth EE, Rosato EF, et al, "Rectal tumor stage: correlation of endorectal MR imaging and pathologic findings," Radiology, Vol. 190, No. 3, pp. 709-714, 1994. https://doi.org/10.1148/radiology.190.3.8115616
  18. Sotak CH, "New NMR measurements in epilep-sy. Diffusion weighted magnetic resonance imaging of spreading depression," adv Neurol, Vol. 79, pp. 925-929, 1999.
  19. Rowley HA, Grant PE, Roberts TP, "Diffusion MR imaging: theory and applications," Neuro-imaging Clin, Vol. 9, No. 2, pp. 343-361, 1999.
  20. Halligan S, Bartram CI, "MR imaging of fistula in ano: Are endoanal coils the gold standards?," AJR, Vol. 171, pp. 407-412, No. 1, 1998. https://doi.org/10.2214/ajr.171.2.9694465
  21. A Gass, G J Barker, D MacManus, M Sanders, "High resolution magnetic resonance imaging of the anterior visual pathway in patients with optic neuropathies using fast spin echo and phased array local coils," J Neurol Neurosurg Psychiatry, Vol. 58, pp. 562-569, No. 1, 1995 https://doi.org/10.1136/jnnp.58.5.562
  22. Jae Ho Byun, Kyeong Sik Cho, Cheol Ho Son, et al, "전립선암의 경직장 코일 자기공명영상 :근치적 전립선 절제술 소견과의 비교," 대한방사선의학회지, Vol. 40, No. 5, pp.47-951 1999.