He pioneered Meckel’s cave alcohol injection in Vietnam under DSA guidance to treat trigeminal neuralgia, bringing relief to many suffering from the "suicide disease." He also applied celiac plexus ablation for pain management in pancreatic, liver, and gastric cancers.

Dr. Giang has played a key role in advancing pain relief techniques for musculoskeletal disorders and vertebroplasty for osteoporotic spinal fractures. His Ph.D. research focused on intracranial embolization, significantly improving outcomes for carotid-cavernous fistula (CCF).

He has held various leadership roles at Saint Paul Hospital, K Hospital, and is currently Director of Diagnostic Imaging & Interventional Radiology at Vinmec Health System and Head of Radiology at VinUni Health Sciences Institute.