Diagnostic impact of four postprocessing techniques in evaluating contrast-enhanced three-dimensional MR angiography

被引:49
作者
Hany, TF [1 ]
Schmidt, M [1 ]
Davis, CP [1 ]
Göhde, SC [1 ]
Debatin, JF [1 ]
机构
[1] Univ Zurich Hosp, Inst Diagnost Radiol, CH-8091 Zurich, Switzerland
关键词
D O I
10.2214/ajr.170.4.9530032
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
OBJECTIVE. The purpose of this study was to determine the added diagnostic value of various three-dimensional (3D) data viewing techniques when analyzing contrast-enhanced 3D MR angiography. MATERIALS AND METHODS. Twenty patients (mean age, 62 years) with symptomatic peripheral vascular disease were assessed with breath-hold, contrast-enhanced 3D MR angiography and catheter angiography, which served as the standard of reference. After an initial interpretation of the 3D MR angiographic data sets based only on standardized maximum intensity projections (MIP), the diagnostic gain of the stepwise addition of interactive multiplanar reformations, shaded-surface displays (SSD), and virtual intraarterial endoscopy (VIE) images was calculated. Time required for each step of postprocessing was measured. RESULTS. Pathologic changes were revealed by catheter angiography in 60 vascular segments (50 severe stenoses, seven aneurysms, and three occlusions). The average postprocessing times were MIP, 8 min (range, 5-12 min); multiplanar reformations, 9 min (range, 3-11 min); SSD, 15 min (range, 8-25 min); and VIE, 40 min (range, 18-63 min). Addition of multiplanar reformations to MIPs resulted in the greatest gain of diagnostic accuracy, from 92% to 96%, and diagnostic confidence. When analysis was based on all four techniques, receiver operating characteristic curve analysis revealed only minimal improvements in diagnostic confidence, whereas diagnostic accuracy remained unchanged at 96%. CONCLUSION. Accurate and time-effective analysis of contrast-enhanced 3D MR angiography should be based on MIP algorithms and multiplanar reformations. Additional evaluation with VIE or SSD techniques is time-consuming and provides little diagnostic gain.
引用
收藏
页码:907 / 912
页数:6
相关论文
共 15 条
  • [1] ARTIFACTS IN MAXIMUM-INTENSITY-PROJECTION DISPLAY OF MR ANGIOGRAMS
    ANDERSON, CM
    SALONER, D
    TSURUDA, JS
    SHAPEERO, LG
    LEE, RE
    [J]. AMERICAN JOURNAL OF ROENTGENOLOGY, 1990, 154 (03) : 623 - 629
  • [2] AN ROC APPROACH FOR EVALUATING FUNCTIONAL BRAIN MR-IMAGING AND POSTPROCESSING PROTOCOLS
    CONSTABLE, RT
    SKUDLARSKI, P
    GORE, JC
    [J]. MAGNETIC RESONANCE IN MEDICINE, 1995, 34 (01) : 57 - 64
  • [3] Human aorta: Preliminary results with virtual endoscopy based on three-dimensional MR imaging data sets
    Davis, CP
    Ladd, ME
    Romanowski, BJ
    Wildermuth, S
    Knoplioch, JF
    Debatin, JF
    [J]. RADIOLOGY, 1996, 199 (01) : 37 - 40
  • [4] Breath-hold single-dose gadolinium-enhanced three-dimensional MR aortography: Usefulness of a timing examination and MR power injector
    Earls, JP
    Rofsky, NM
    DeCorato, DR
    Krinsky, GA
    Weinreb, JC
    [J]. RADIOLOGY, 1996, 201 (03) : 705 - 710
  • [5] PROJECTION ARTERIOGRAPHY AND VENOGRAPHY - INITIAL CLINICAL-RESULTS WITH MR
    EDELMAN, RR
    WENTZ, KU
    MATTLE, H
    ZHAO, B
    LIU, C
    KIM, D
    LAUB, G
    [J]. RADIOLOGY, 1989, 172 (02) : 351 - 357
  • [6] HANY TF, 1997, J MAGN RESON IMAGING, V7, P552
  • [7] Breath-hold, contrast-enhanced, three-dimensional MR angiography
    Leung, DA
    McKinnon, GC
    Davis, CP
    Pfammatter, T
    Krestin, GP
    Debatin, JF
    [J]. RADIOLOGY, 1996, 200 (02) : 569 - 571
  • [8] EVALUATION OF THE RENAL-ARTERIES IN KIDNEY DONORS - VALUE OF 3-DIMENSIONAL PHASE-CONTRAST MR-ANGIOGRAPHY WITH MAXIMUM-INTENSITY-PROJECTION OR SURFACE RENDERING
    MEYERS, SP
    TALAGALA, SL
    TOTTERMAN, S
    AZODO, MVU
    KWOK, E
    SHAPIRO, L
    SHAPIRO, R
    PABICO, RC
    APPLEGATE, GR
    [J]. AMERICAN JOURNAL OF ROENTGENOLOGY, 1995, 164 (01) : 117 - 121
  • [9] DISPLAY OF MR ANGIOGRAMS - MAXIMUM INTENSITY PROJECTION VERSUS 3-DIMENSIONAL RENDERING
    MURAKAMI, T
    KASHIWAGI, T
    NAKAMURA, H
    TSUDA, K
    AZUMA, M
    TOMODA, K
    HORI, S
    KOZUKA, T
    [J]. EUROPEAN JOURNAL OF RADIOLOGY, 1993, 17 (02) : 95 - 100
  • [10] BREATH-HOLD GADOLINIUM-ENHANCED MR-ANGIOGRAPHY OF THE ABDOMINAL-AORTA AND ITS MAJOR BRANCHES
    PRINCE, MR
    NARASIMHAM, DL
    STANLEY, JC
    CHENEVERT, TL
    WILLIAMS, DM
    MARX, V
    CHO, KJ
    [J]. RADIOLOGY, 1995, 197 (03) : 785 - 792