In clinical diagnostics, Pulsed Wave (PW) Doppler is one of the most used spectral Doppler techniques since it provides quantitative information about the severity of several cardiac disorders. Therefore, routine quality control tests should be scheduled to check whether a proper level of performance is maintained over time. Despite continuous research in the field, performance evaluation of Doppler equipment is still an open issue. Therefore, the present study is focused on the comparative investigation based on a test parameter for the automatic analysis of faults in sample volume length and range gate registration accuracy. The Velocity Profile Discrepancy Index (VPDI) provides a quantitative estimation according to the agreement between the theoretical parabolic velocity profile and the measured one. The index was assessed through an automatic method that post-processes PW spectrogram images acquired at six sample volume depths with respect to the vessel radius of a Doppler reference device. Tests were repeated for three brand-new ultrasound diagnostic systems, equipped with convex and phased array probes, in two working conditions. From the analysis of the results, a lower discrepancy between the measured and the theoretical velocity profile was found for the convex array probes as well as a lower uncertainty contribution.

Fiori, G., Bocchetta, G., Conforto, S., Sciuto, S.A., Scorza, A. (2023). Sample volume length and registration accuracy assessment in quality controls of PW Doppler diagnostic systems: a comparative study. ACTA IMEKO, 12(2), 1-7 [10.21014/actaimeko.v12i2.1425].

Sample volume length and registration accuracy assessment in quality controls of PW Doppler diagnostic systems: a comparative study

Giorgia Fiori
Conceptualization
;
Gabriele Bocchetta
Writing – Review & Editing
;
Silvia Conforto
Writing – Review & Editing
;
Salvatore Andrea Sciuto
Writing – Review & Editing
;
Andrea Scorza
Supervision
2023-01-01

Abstract

In clinical diagnostics, Pulsed Wave (PW) Doppler is one of the most used spectral Doppler techniques since it provides quantitative information about the severity of several cardiac disorders. Therefore, routine quality control tests should be scheduled to check whether a proper level of performance is maintained over time. Despite continuous research in the field, performance evaluation of Doppler equipment is still an open issue. Therefore, the present study is focused on the comparative investigation based on a test parameter for the automatic analysis of faults in sample volume length and range gate registration accuracy. The Velocity Profile Discrepancy Index (VPDI) provides a quantitative estimation according to the agreement between the theoretical parabolic velocity profile and the measured one. The index was assessed through an automatic method that post-processes PW spectrogram images acquired at six sample volume depths with respect to the vessel radius of a Doppler reference device. Tests were repeated for three brand-new ultrasound diagnostic systems, equipped with convex and phased array probes, in two working conditions. From the analysis of the results, a lower discrepancy between the measured and the theoretical velocity profile was found for the convex array probes as well as a lower uncertainty contribution.
2023
Fiori, G., Bocchetta, G., Conforto, S., Sciuto, S.A., Scorza, A. (2023). Sample volume length and registration accuracy assessment in quality controls of PW Doppler diagnostic systems: a comparative study. ACTA IMEKO, 12(2), 1-7 [10.21014/actaimeko.v12i2.1425].
File in questo prodotto:
File Dimensione Formato  
Sample Volume Lenght and registration accuracy.pdf

accesso aperto

Tipologia: Versione Editoriale (PDF)
Licenza: Creative commons
Dimensione 931.01 kB
Formato Adobe PDF
931.01 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/441430
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? ND
social impact