14 Medical Imaging and Radiotherapy Journal (MIRTJ) 41 (Suppl. 1) Medical Imaging and Radiotherapy Journal (MIRTJ) 41 (Suppl. 1) NAKLJUČNE NAJDBE PRI MAGNETNORESONANČNEM SLIKANJU LEDVENE HRBTENICE INCIDENTAL FINDINGS OF THE LUMBAR SPINE AT MAGNETIC RESONANCE Katarina Jazbec Ortopedska bolnišnica Valdoltra, Jadranska cesta 31, 6280 Ankaran – Ancarano / Orthopaedic Hospital Valdoltra, Jadranska cesta 31, 6280 Ankaran – Ancarano Korespondenca / Corresponding author: katarinajazbec8@gmail.com Prejeto/Recived: 25. 1. 2024 Sprejeto/Accepted: 9. 2. 2024 IZVLEČEK Uvod: Naključ na najdba je predhodno nepoznana in nepri- č akovana sprememba, ki ni povezana z namenom opravljene preiskave, vendar ima potencialno klinič en pomen. Naključ ne najdbe so lahko benigne ali maligne bolezenske spremembe, lahko so pomembnejš e od bolezni, zaradi katere je pacient napoten na magnetno resonanco (MR) ledvene hrbtenice (LS). Namen: Namen prispevka je raziskati pojavnost in vrsto ugotovljenih naključ nih najdb pri pacientih, ki so napoteni na MR LS zaradi suma hernije medvretenč ne ploš č ice v Ortopedski bolniš nici Valdoltra (OBV) v dveh različ nih obdobjih, in sicer leta 2019 in leta 2022. Vključ ili smo najdbe, ki so prisotne v ledvenem predelu hrbtenice: hemangiome, tarlove ciste, sinovialne ciste, sakralne meningokele, tumorje ter vnetja. Na podlagi sistematič nega pregleda literature je bil glavni cilj izvedeti, kakš na so odstopanja oz. podobnosti v rezultatih z ostalimi raziskavami, ki so bile izvedene v tujini. Metode dela: V sklopu sistematič nega pregleda literature je bilo pregledanih in analiziranih 14 č lankov, ki se navezujejo na temo naključ nih najdb pri MR LS preiskavah. Drugi del raziskave je bil retrospektiven. Zajemal je paciente OBV, ki so bili napoteni na MR LS preiskavo zaradi suma na hernijo medvretenč ne ploš č ice. Raziskava je vključ evala 1753 pacientov. Š tevilo pacientov glede na spol in starost smo prikazali s pomoč jo kontingenč nih tabel, za opis smo uporabili frekvence. Delež e smo med seboj primerjali s hi-kvadrat testom. Rezultati: Odstotek ugotovljenih naključ nih najdb je bil 15 % (264 primerov). Najpogosteje so bili diagnosticirani vertebralni hemangiomi (10 %, 169 primerov). Odstotek diagnosticiranih tarlovih cist je bil 3 % (58 primerov), sinovialnih cist pa 2 % (34 primerov). Pri enem pacientu so diagnosticirali sakralno meningokelo, pri 2 pacientih so diagnosticirali tumor hrbtenice. Vnetje ledvene hrbtenice ni bilo naključ no diagnosticirano pri nobenem pacientu, ki je bil vključ en v raziskavo. Najmanjš i ugotovljen odstotek naključ nih najdb v tuji literaturi je bil 7,8 %, največ ji odstotek 34,2 % [95 % CI: 14,8 %; 25,8 %], povpreč en odstotek naključ nih najdb pa 20,3 %. Razprava in zaključ ek: Naključ ne najdbe so bile pogoste in povezane s starostjo in spolom (p < 0,05). Več ina je bila benignih najdb. V raziskavi smo ugotovili, da imajo naključ ne najdbe pomembno vlogo pri razvoju in napredku zdravstvene znanosti in klinič ne prakse. Ključ ne besede: magnetna resonanca, ledvena hrbtenica, naključ ne najdbe ABSTRACT Introduction: An incidental fi nding (IF) is a previously unexpected lesion that is unrelated to the reason of the examination but has potential clinical signifi cance. During the magnetic resonance imaging (MRI) of the lumbar spine (LS), various IF can be observed in the spinal column and extraspinal tissues. Purpose: The aim of this study was to evaluate and analyse the incidence and type of spinal IF in patients referred for LS MRI due to suspected herniated intervertebral disk disease. Our study population included patients from Valdoltra Orthopaedic Hospital (OBV) who underwent imaging between 2019 and 2022. Vertebral haemangioma, Tarlov cyst, synovial cist, sacral meningocele, discitis of the lumbar spine and spinal tumours were included. Based on a systematic review of existing literature, the main objective was to identify similarities in the results with other studies performed abroad. Methods: As part of a systematic literature review, 14 articles related to IF in LS MRI examinations were analysed. The second part of the study was retrospective, involving 1,753 patients from OBV who were referred for LS MRI examination because of clinically suspected herniated intervertebral discs. The number of patients according to age and gender was displayed using contingency tables, while frequencies were used for description. The chi-square test was used for the analysis of the relationship of IF with patient characteristics. Results: Overall, IF were present in 264 patients (15 %). Vertebral haemangiomas were the most common IF (169 patients or 10%), followed by Tarlov cysts (58 patients or 3%) and synovial cysts (34 patients or 2%). One patient was diagnosed with sacral meningocele and two patients were diagnosed with spinal tumours. No lumbar spine infl ammation was diagnosed incidentally in any of the patients included in the study. The lowest reported incidence of IF in previous studies was 7.8%, the highest incidence was 34.2% [95% CI: 14.8%–25.8%]. The average of IF in previous studies was 20.3%. Discussion and conclusions: IF in LS MRI were common and associated with age and gender (p < 0.05). Most of them were benign fi ndings. IF play a crucial role in improving medical practice and discovering new approaches to treatment. Keywords: MRI, lumbar spine, incidental fi ndings, incidental lesions Medical Imaging and Radiotherapy Journal (MIRTJ) 41 (Suppl. 1) 15 Medical Imaging and Radiotherapy Journal (MIRTJ) 41 (Suppl. 1) LITERATURA / REFERENCES Abdullah, A.R., Odish, H.Y., & Mohamedamin, H.A. (2018). 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