Publications by authors named "Amin Keshavarz Zirak"

Objectives: To evaluate the potential relationship between scrotal ultrasound findings and abnormal semen analysis.

Methods: Eighty-seven patients with varicoceles underwent semen analysis and scrotal sonography. On ultrasound, estimated testes volume and the largest pampiniform vein diameters on the affected side at rest and with Valsalva manoeuvre in both the supine and upright positions were examined.

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This study was designed to evaluate ureterovesical jet dynamics in obstructed ureter and to compare it with those of contralateral unobstructed side. Forty-six patients with diagnosis of ureteral stone, based on imaging findings in computed tomography were enrolled in this study. The gray-scale ultrasound exam from both kidneys and urinary bladder was performed.

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Purpose: To prospectively evaluate whether age of patient affects diagnostic accuracy of sonography and magnetic resonance imaging (MRI) in the diagnosis of medial meniscal tears.

Methods: We prospectively evaluated 74 consecutive patients (54 males and 20 females), in two different groups [group A (37 patients ≤ 30 years; mean age: 23.5 ± 5 years) and group B (37 patients > 30 years; mean age: 43.

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Synopsis of recent research by authors named "Amin Keshavarz Zirak"

  • - Amin Keshavarz Zirak's research primarily focuses on the diagnostic capabilities of ultrasound in various medical conditions, including varicoceles, ureteral stones, and knee injuries, demonstrating the utility of imaging techniques in urology and orthopedics.
  • - One of his studies evaluates the correlation between scrotal ultrasound findings and semen analysis in patients with varicoceles, indicating important associations that may influence male fertility assessments.
  • - Another significant study assesses ureterovesical jet dynamics in patients with obstructed ureters caused by urinary stones, providing insights into the non-invasive evaluation of urinary tract obstructions.