Absolutely yes. I have a diagnosis of Disassociative Disorder of Extreme Distress Not Otherwise Specified (DDNOS) and PTSD.
I use a digital recorder for all my therapy sessions with full permission from my therapists. Though I do dissociate somewhat during every single session, as long as I have it recorded, I can go back and listen. The listening, as many times as necessary, to finally "hear" and "feel" the feelings appropriate to the trauma helps me in processing.
Several of my traumas have taken several weeks of weekly sessions to finally stay with one foot in the present enough to release the trapped memory fragments, face them, introduce my experience and understanding from my life now, and allow them to finally take the place in the past where they belong.
It's not fun, but I'm so very grateful it's possible. It requires a lot of trust. I'd identify the place where I dissociated, then report it back to my trauma therapist. As we'd approach that "place" in the next session, she'd slow the process down, keeping me grounded in the present, and keep backing up as necessary. This allowed me to gain a lot of trust in both her, myself, and the process.