Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Heterotopic ossification of the knee joint in intensive care unit patients: early diagnosis with magnetic resonance imaging. | Available online http content 10 5 R152 Research Heterotopic ossification of the knee joint in intensive care unit patients early diagnosis with magnetic resonance imaging Maria I Argyropoulou1 Eleonora Kostandi2 Paraskevi Kosta1 Anastasia K Zikou1 Dimitra Kastani2 Efi Galiatsou2 Athanassios Kitsakos2 and George Nakos2 Department of Radiology Medical School University of loannina 45110 loannina Greece intensive Care Unit Department of Internal Medicine Medical School University of loannina 45110 loannina Greece Corresponding author Maria I Argyropoulou margyrop@ Received 6 Jul 2006 Revisions requested 14 Aug 2006 Revisions received 19 Sep 2006 Accepted 30 Oct 2006 Published 30 Oct 2006 Critical Care 2006 10 R152 doi cc5083 This article is online at http content 10 5 R152 2006 Argyropoulou et al. licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Open Access Abstract Introduction Heterotopic ossification HO is the formation of bone in soft tissues. The purpose of the present study was to evaluate the magnetic resonance imaging MRI findings on clinical suspicion of HO in the knee joint of patients hospitalised in the intensive care unit ICU . Methods This was a case series of 11 patients requiring prolonged ventilation in the ICU who had the following diagnoses head trauma nine necrotising pancreatitis one and fat embolism one . On clinical suspicion of HO x-rays and MRI of the knee joint were performed. Follow-up x-rays and MRI were also performed. Results First x-rays were negative whereas MRI days after admission showed joint effusion and in fast spinecho short time inversion-recovery STIR images a lacy pattern of the muscles vastus lateralis and medialis. The innermost part .