Turkiye Klinikleri Journal of Medical Sciences

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Hematolojik Neoplazilerde Kemik İliğindeki Tutulumun Manyetik Rezonans Görüntüleme İle Değerlendirilmesi
The Evaluation Of Bone Marrow Involvement In Haematologic Neoplasms With Magnetic Resonance Imaging
Bahriye PAYZİNa, Yeşim ADAKANb, Mevlüt YİĞİTc, Selda ÇENELİb, Murat ÇAKIRd, Yeşim ÜNLÜb, Mehmet SONBAHARb, Mücahit ATALAYe
aHematoloji Kliniği, b2. İç Hastalıkları Kliniği, cRadyoloji Kliniğid, 1. İç Hastalıkları Kliniği, eNükleer Tıp Kliniği, Atatürk Eğitim ve Araştırma Hastanesi, İZMİR
Turkiye Klinikleri J Med Sci. 2004;24(2):113-23
Article Language: TR
Full Text
ÖZET
Amaç: Bu çalışmada, kemik iliğinde primer ya da sekonder olarak yer alan hematolojik neoplazilerde kemik iliği biyopsisi (KİB) sonuçları ile eş zamanlı yapılan kemik iliğine yönelik Manyetik Rezonans Görüntüleme (MRG), bilgisayarlı tomografik inceleme (BT), sintigrafik inceleme (SG) ve konvansiyonel yöntemle direkt kemik grafileri (DKG) sonuçları karşılaştırılarak MRG'nin invaziv olmayan radyolojik inceleme olarak kemik iliği tutulumunun aranması sırasındaki değeri tartışıldı. Gereç ve Yöntemler: Çalışmaya Mart 1999 ile Nisan 2000 tarihleri arasında hastanemize kabul edilen 12'si Hodgkin dışı lenfoma (HDL), 6'sı multipl miyelom (MM), 5'i Hodgkin lenfoma (HL), 2'si kronik lenfositik lösemi (KLL), 2'si akut miyeloblastik lösemi (AML) ve 2'si akut lenfoblastik lösemi(ALL) tanılı olmak üzere toplam 29 hasta alındı. Hastaların 18'i erkek, 11'i kadın (erkek/kadın:1.6), medyan yaş: 48 (17-75) idi. KİB ve radyolojik incelemeler tanı sırasında 15 gün ve tedavinin bitiminden sonraki 30 gün içinde tamamlandı. Akut lösemili hastaların (4 hasta) sternal aspirasyonları kemoterapi sonrası gereğinde tekrarlandı. Hastalarda Tc99m nanokolloid kullanılarak kemik iliğine yönelik kemik sintigrafisi incelemesi gerçekleştirildi. MRG incelemede tetkik bölgesi olarak sellüler iliğin daha yoğun bulunduğu pelvis, lomber vertebralar ve proksimal femur seçilerek 0.5 Tesla gücünde sabit manyetik alan oluşturabilen Vectra cihazı kullanıldı. Tüm olgularda ROI (region of interest) yöntemi ile tutulum alanlarında T1 ve T2 ağırlıklı görüntülerde intensite ölçümü yapıldı. Bulgular: Çalışmamızda hematolojik neoplazilerin kemik iliği tutulumlarının radyolojik inceleme yöntemleri ile saptanmasındaki sensitiviteleri kemik iliği biyopsisi temel alınarak tanı sırasında MRG ile % 100, sintigrafi ile %90, BT ile %77 ve DKG ile %61 bulundu. Sonuç: Hematolojik neoplazilerin kemik iliğinde primer ya da sekonder olarak tutulumunun varlığının gösterilmesi, hastalığın izlenmesi, özellikle lenfomalarda klinik evrenin doğru tanımlanmasındaki KİB histopatolojisine desteği ile invaziv olmayan bir yöntem olarak MRG'nin giderek artan oranda kullanım alanı bulacağı kanısındayız.

Anahtar Kelimeler: Hematolojik neoplaziler, manyetik ezonans görüntüleme, kemik iliği sintigrafisi, kemik iliği biyopsisi
ABSTRACT
Objective: In this study, the value of magnetic resonance imaging (MRI) as a non-invasive radioligical examination in the detection of bone marrow involvement in primary and secondary haemotologic neoplasms was discussed with comparison of concomitant MRI, computerized tomography (CT), sintigraphic evaluation (SE) and conventional bone graphies (CBG) with bone marrow biopsy (BMB) results. Material and Methods: A group, totaling 29 patients, were admitted to our hospital between March 1999 and April 2000, consisting of 12 patients with Non-Hodgkin's lymphoma, 6 patients with multiple myeloma, 5 patients with Hodgkin's lymphoma, 2 patients with chronic lymphocytic leukemia, 2 patients with acute myeloid leukemia. 18 of them were male and eleven were female ( male/female:1,6), median age was 48 years (17-75). Bone marrow biopsy and radiological examinations were completed in 15 days during diagnosis and in 30 days after treatment. Sternal aspirations of patients with acute leukemia were repeated after chemotherapy when necessary. Sintigraphy of bone marrow using Tc99m nanocolloid was performed in all patients. In magnetic resonance imaging examination, Vectra devices capable of forming a 0,5 Tesla power constant magnetic field was used with selecting pelvis, lumbar vertebras and proximal femur where cellular marrow density was relatively higher, as examination sites. In all cases, the density was measured in T1 and T2-weighted images at involvement sites with ROI(region of interest) method. Results: In our study; the sensitivites of radiologic examinations based on bone marrow biopsy in bone marrow involvement of haemotologic neoplasms were established as %100 in MRI, %90 in SE, %70 in CT and %61 in CBG. Conclusion: We foresee that MRI will be used with increasing frequency as a non-invasive method in demonstrating the existence of primary or secondary bone marrow involvement in haemotologic neoplasms in surveillance and as a supportive adjunct to bone marrow biopsy in determining the actual stage in lymphomas.

Keywords: Haematologic neoplasms, magnetic resonance imaging, bone marrow sintigraphy, bone marrow biopsy

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