Dynamic contrast-enhanced subtraction MR angiography of the lower extremities: initial evaluation with a multisection two-dimensional time-of-flight sequence.


PURPOSE:To determine the clinical feasibility of a contrast material--enhanced two-dimensional (2D) magnetic resonance (MR) angiographic sequence in lower extremity arteries. MATERIALS AND METHODS:Four healthy volunteers and 12 patients underwent dynamic contrast-enhanced MR angiography; all patients also underwent conventional angiography. A 2D multisection gradient-echo sequence with image subtraction was used for all MR imaging examinations. RESULTS:Oblique-coronal contrast-enhanced MR angiography was completed in less than 4 minutes, with a 256 x 512 matrix. The arterial contrast enhancement ratio was 2.0 +/- 0.8 (standard deviation), and the pre- and post-contrast contrast-to-noise ratios were 2.1 +/- 13.8 and 46.2 +/- 18.7, respectively. The sensitivity for MR angiography was 100% and specificity was 69% for distinction of vessels with greater than 50% stenoses from normal or mildly stenotic vessels. CONCLUSION:Dynamic contrast-enhanced 2D MR angiography is capable of increasing intraarterial signal intensity and depicting small vessel anatomy of the lower extremities over a large field of view in a short imaging time.






Adamis MK,Li W,Wielopolski PA,Kim D,Sax EJ,Kent KC,Edelman RR




Has Abstract


1995-09-01 00:00:00












  • Value of Multiparametric US in the Assessment of Intratesticular Lesions.

    abstract::Purpose To evaluate the diagnostic accuracy of multiparametric ultrasonography (US) consisting of gray-scale US, color Doppler US, strain elastography, and contrast agent-enhanced US in the assessment of intratesticular lesions. Materials and Methods Institutional review board approval was obtained for this retrospect...


    pub_type: 杂志文章


    authors: Auer T,De Zordo T,Dejaco C,Gruber L,Pichler R,Jaschke W,Dogra VS,Aigner F

    更新日期:2017-11-01 00:00:00

  • Mammography with synchrotron radiation: phase-detection techniques.

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    pub_type: 杂志文章


    authors: Arfelli F,Bonvicini V,Bravin A,Cantatore G,Castelli E,Palma LD,Michiel MD,Fabrizioli M,Longo R,Menk RH,Olivo A,Pani S,Pontoni D,Poropat P,Prest M,Rashevsky A,Ratti M,Rigon L,Tromba G,Vacchi A,Vallazza E,Zanconat

    更新日期:2000-04-01 00:00:00

  • Biliary intervention by means of percutaneous puncture of the antecolic jejunal loop.

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    pub_type: 杂志文章


    authors: Perry LJ,Stokes KR,Lewis WD,Jenkins RL,Clouse ME

    更新日期:1995-04-01 00:00:00

  • Childhood leukemia: diagnostic accuracy of bedside chest radiography for severe pulmonary complications.

    abstract:PURPOSE:To determine the diagnostic accuracy of bedside chest radiography in patients who develop severe pulmonary complications while undergoing therapy for leukemia. MATERIALS AND METHODS:The authors studied 45 patients, aged 21 years and younger, who died of leukemia or of treatment complications and for whom autop...


    pub_type: 杂志文章


    authors: Winer-Muram HT,Rubin SA,Fletcher BD,Kauffman WM,Jennings SG,Arheart KL,Bozeman PM

    更新日期:1994-10-01 00:00:00

  • Anomalies of the intrahepatic portal venous system in congenital hepatic fibrosis.

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    pub_type: 杂志文章


    authors: Odievre M,Chaumont P,Montagne JP,Alagille D

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    pub_type: 杂志文章


    authors: Donoso L,Martínez-Noguera A,Zidan A,Lora F

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  • CT fluoroscopy--guided interventional procedures: techniques and radiation dose to radiologists.

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    pub_type: 杂志文章


    authors: Paulson EK,Sheafor DH,Enterline DS,McAdams HP,Yoshizumi TT

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    pub_type: 杂志文章


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    更新日期:2001-03-01 00:00:00

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    pub_type: 杂志文章


    authors: Ball DS,Radecki PD,Friedman AC,Caroline DF,Mayer DP

    更新日期:1986-01-01 00:00:00

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    pub_type: 杂志文章


    authors: Iijima A,Piotin M,Mounayer C,Spelle L,Weill A,Moret J

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    pub_type: 杂志文章


    authors: Piccoli CW,Feig SA,Palazzo JP

    更新日期:1999-04-01 00:00:00

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    pub_type: 杂志文章,评审


    authors: Hendee WR,O'Connor MK

    更新日期:2012-08-01 00:00:00

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    pub_type: 杂志文章


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    更新日期:1987-12-01 00:00:00

  • T2 relaxation time of cartilage at MR imaging: comparison with severity of knee osteoarthritis.

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    pub_type: 杂志文章


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    pub_type: 杂志文章


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    pub_type: 杂志文章


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    pub_type: 杂志文章


    authors: Pera A,Capek M,Shirkhoda A

    更新日期:1987-09-01 00:00:00

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    pub_type: 杂志文章


    authors: Hricak H,Terrier F,Demas BE

    更新日期:1986-05-01 00:00:00

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    pub_type: 杂志文章


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    更新日期:1992-01-01 00:00:00

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    pub_type: 杂志文章


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    更新日期:1998-11-01 00:00:00

  • Detection of heart calcification with electron beam CT: interobserver and intraobserver reliability for scoring quantification.

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    pub_type: 杂志文章


    authors: Kaufmann RB,Sheedy PF 2nd,Breen JF,Kelzenberg JR,Kruger BL,Schwartz RS,Moll PP

    更新日期:1994-02-01 00:00:00

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    pub_type: 杂志文章


    authors: Matsui O,Kadoya M,Kameyama T,Yoshikawa J,Takashima T,Nakanuma Y,Unoura M,Kobayashi K,Izumi R,Ida M

    更新日期:1991-02-01 00:00:00

  • Peritoneal reaction resulting from iodinated contrast material: comparative study.

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    pub_type: 杂志文章


    authors: Eisenberg AD,Winfield AC,Page DL,Holburn GE,Schifter T,Segars JH

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    pub_type: 杂志文章


    authors: Peterfy CG,van Dijke CF,Janzen DL,Glüer CC,Namba R,Majumdar S,Lang P,Genant HK

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    pub_type: 杂志文章


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    pub_type: 杂志文章


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    pub_type: 杂志文章


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    更新日期:1999-07-01 00:00:00

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    pub_type: 杂志文章


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    pub_type: 杂志文章


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    pub_type: 杂志文章


    authors: Resnick D

    更新日期:1975-03-01 00:00:00