Table 2.

Perceived barriers to implementing intraprostatic focal boost in participants’ respective practices

Barrier	All participants (n = 258) (%)	Generalists (n = 68) (%)	Partial subspecialists (n = 119) (%)	Complete subspecialists (n = 70) (%)
Concerns about registration accuracy between MRI and CT	37	37	41	31
Concerns about risk of additional toxicity	35	34	39	27
Challenges to accessing high-quality MRI	29	32	34	19
Not aware or convinced of benefit	24	25	25	21
Have not been trained to identify prostate tumors on MRI	16	22	16	9
Dosimetrists need additional training to make high-quality plans	16	21	13	16
Prefer brachytherapy boost	14	9	13	20
Concerns about planning efficiency	10	15	9	9
Other	15	15	12	21

Participants were asked to select all that apply