R Ptasznik

University of Melbourne, Melbourne, Victoria, Australia

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Publications (5)7.53 Total impact

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    ABSTRACT: The purpose of this study was to test the efficacy of sonography in the diagnosis of rupture of the anterior cruciate ligament in the setting of a recent traumatic hemarthrosis. Sonography was prospectively performed in 37 patients with a recent traumatic hemarthrosis of the knee, no bone abnormality seen on plain radiographs, and no history of a previous knee injury. The presence of a hypoechoic collection along the lateral wall of the femoral intercondylar notch was interpreted as a hematoma at the femoral attachment of the anterior cruciate ligament. Arthroscopy was subsequently performed in 30 patients. The findings of three diagnostic techniques (sonography, MR imaging, and arthroscopy) were compared. The sonographic findings were confirmed by MR imaging and arthroscopy in 34 of the 37 patients. For the three false-negative results, sonographic findings were abnormal but equivocal in two cases and were reported as negative. The technique was therefore 91% sensitive and 100% specific. The positive predictive value was 100%. The negative predictive value was 63%. Sonography is a useful and inexpensive method of detecting the presence of rupture of the anterior cruciate ligament in the clinical setting of a traumatic hemarthrosis.
    American Journal of Roentgenology 07/1995; 164(6):1461-3. DOI:10.2214/ajr.164.6.7754893 · 2.74 Impact Factor
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    R Ptasznik, O Hennessy
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    ABSTRACT: The purpose of this essay is to illustrate sonographic findings for patients with abnormalities of the tendon of the long head of the biceps muscle of the arm. The tendon is vulnerable to a variety of injuries caused by abnormalities of its osseous and soft-tissue supports, including impingement of the tendon against the acromion and arthritis of the glenohumeral joint. These abnormalities include acute and chronic tenosynovitis, rupture, subluxation, and dislocation.
    American Journal of Roentgenology 03/1995; 164(2):409-14. DOI:10.2214/ajr.164.2.7839979 · 2.74 Impact Factor
  • A Read, S T Chou, R Ptasznik, O Hennessy
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    ABSTRACT: A 23-year-old man was admitted following a massive haematemesis. Dieulafoy's syndrome was diagnosed and the treatment was a partial proximal gastrectomy and pyloroplasty. The diagnosis and approach to surgical management of Dieulafoy's syndrome are discussed.
    Australian and New Zealand Journal of Surgery 04/1992; 62(3):237-9. DOI:10.1111/j.1445-2197.1992.tb05469.x
  • Australasian Radiology 12/1990; 34(4):347-9. DOI:10.1111/j.1440-1673.1990.tb02672.x · 0.51 Impact Factor
  • Source
    R Ptasznik, O F Hennessy
    British Journal of Radiology 03/1988; 61(722):164-5. DOI:10.1259/0007-1285-61-722-164 · 1.53 Impact Factor

Publication Stats

66 Citations
7.53 Total Impact Points

Institutions

  • 1995
    • University of Melbourne
      Melbourne, Victoria, Australia
    • Austin Health
      • Department of Radiology
      Melbourne, Victoria, Australia
  • 1988–1992
    • Repatriation General Hospital
      Tarndarnya, South Australia, Australia
  • 1990
    • Royal Melbourne Hospital
      Melbourne, Victoria, Australia