Psychodynamic psychotherapy is a form of depth psychology, the primary focus of which is to reveal the unconscious content of a client's psyche in an effort to alleviate psychic tension. In this way, it is similar to psychoanalysis, however, psychodynamic therapy tends to be more brief and less intensive than psychoanalysis. It also relies on the interpersonal relationship between client and therapist more than other forms of depth psychology.

More Info: http://en.wikipedia.org/wiki/Psychodynamic_psychotherapy