Table 3.

Average flow rate (mL/min) of water and 30% diluted ultrasound gel (viscous fluid) with particulate matter (TVP) with control and different connections. The number of occluded trial and unpredictability of which catheters and connection devices would become occluded prevented summarizing the data with descriptive statistics and analyzing with inferential statistics. The data are presented to illustrate the inconsistencies, which may be indicative the occlusive nature and unpredictability of particulate matter/debris.

Catheter size (Fr)	Control	Luer-lok (2.67mm)	Low pressure (2.33mm)	Standard (2.00mm)	High pressure (1.33mm)
Water and TVP
8.5	occluded in 3/10 trials	occluded in 5/10 trials	occluded in 3/10 trials	occluded in 8/10 trials	occluded in 2/10 trials
10.2	occluded in 1/10 trials	occluded in 8/10 trials	55±41	69±35	occluded 10/10 trials
12.0	23 ±30	occluded in 6/10 trials	occluded in 7/10 trials	33±54	occluded in 9/10 trials
14.0	6±2	occluded in 7/10 trials	41±38	occluded in 6/10 trials	occluded in 3/10 trials
Viscous fluid and TVP
8.5	occluded in 4/10 trials	occluded in 2/10 trials	occluded in 4/10 trials	occluded in 4/10 trials	occluded in 5/10 trials
10.2	occluded in 1/10 trials	27±25	occluded in 1/10 trials	occluded in 1/10 trials	occluded 1/10 trials
12.0	occluded in 2/10 trials	occluded in 1/10 trials	occluded in 3/10 trials	occluded in 5/10 trials	occluded in 6/10 trials s
14.0	9±9	occluded in 1/10 trials	10±8	occluded in 2/10 trials	occluded in 7/10 trials
14.0	6±2	occluded in 7/10 trials	41±38	occluded in 6/10 trials	occluded in 3/10 trials

Note. The number of occluded trial and unpredictability of which catheters and connection devices would become occluded prevented summarizing the data with descriptive statistics and analyzing with inferential statistics. The data are presented to illustrate the inconsistencies, which may be indicative the occlusive nature and unpredictability of particulate matter/debris.