Evaluation of Bone Marrow Reconversion in Healthy Adults with Knee MRI

Objective: Radiologists encounter bone marrow reconversion (BMR) frequently when evaluating knee magneticresonance imaging (MRI). It is clinically important to know what these changes may be related to. The aim of this studyto investigate the relationships between BMR at MRI with age, gender, body mass index (BMI), smoking and hemoglobin(hgb) levels in healthy adults.Methods: In this prospective study, 107 healthy adults aged 26-62 years (55 women, 52 men ) were evaluated with kneeMRI. The participants were divided according to the smoking histories as two groups: nonsmokers and heavy smokers.Red bone marrow changes examined by a radiologist in coronal T1-weighted sequences and classified into four groupsaccording to their sizes. The levels of blood hgb of all patients were acquired and BMIs’ were calculated. Statisticalanalyzes were performed with the SPSS 17.0 program.Results: 24 (54.55%) of 44 patients with BMR were nonsmokers and 20 (45.45%) were heavy smokers. No statisticallyrelation was found between marrow BMR and smoking history (p>0,05). BMR was found to be more prevalent in obesefemale patients and over 41 years old patients (p

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