Analisis Nilai QFlow Arteri Tungkai Bawah pada Kelompok Usia 18-23 Tahun Menggunakan Pemeriksaan TRANCE MRA

Abstract

Background: Magnetic Resonance Angiography (MRA) using the TRANCE technique is a non-invasive, non-contrast method capable of visualising lower-limb vessels. Although effective for assessing arterial flow, reference values for QFlow parameters—particularly peak velocity and pulsatility index (PI)—remain limited in young adults. This study aims to describe the measurement procedure and determine QFlow values in the abdominal aorta, iliac arteries, and tibial arteries among individuals aged 18–23 years using TRANCE MRA.

Methods: This descriptive qualitative study included nine healthy subjects aged 18–23 years who met the inclusion and exclusion criteria. TRANCE MRA was performed using a Philips Ingenia 3T MRI scanner with a 2D-QFlow sequence. Peak velocity and PI values were obtained by delineating regions of interest (ROIs) on each arterial segment.

Results: The highest mean peak velocity was recorded in the abdominal aorta (92.80 cm/s), followed by the left iliac artery (87.21 cm/s), right iliac artery (81.56 cm/s), right tibial artery (47.30 cm/s), and left tibial artery (42.60 cm/s). The highest PI was observed in the right tibial artery (1.77), followed by the left iliac artery (1.72), right iliac artery (1.62), left tibial artery (1.58), and abdominal aorta (0.77).

Conclusions: Measurement of QFlow parameters—peak velocity and PI—using TRANCE MRA is feasible and demonstrated physiologically normal values in all subjects, indicating preserved arterial haemodynamics. These findings may provide preliminary reference data and reinforce the potential of TRANCE MRA as a non-invasive tool for vascular assessment in young adults.