Radiološki vjesnik最新文献

{"title":"Cephalometric changes associated with MAD therapy","authors":"Tea Galic, Tina Poklepovic Pericic, Ivan Galic, Zoran Dogas, Frane Mihanović","doi":"10.55378/rv.47.2.1","DOIUrl":"https://doi.org/10.55378/rv.47.2.1","url":null,"abstract":"Study objectives: The main objectives of this study were to assess the effect of mandibular advancement device (MAD) therapy on the upper airway morphology, as well as the occurence of dental and skeletal side effects following 1-year MAD therapy in patients with mild to moderate obstructive sleep apnea (OSA). Methods: In this study we included 15 patients with mild to moderate OSA treated with MAD therapy. All subjects underwent sleep study and lateral cephalometric radiography at baseline and at 1-year follow-up. Lateral cephalograms were analyzed with respect to relevant variables. Results: MAD therapy reduced apnea-hypopnea index (AHI) from 22.9±5.9 to 9.7±4.5 events/h ( P <0.001) after 1-year of therapy. Oral area enclosure (3697.0±372.4 vs. 3381.5±336.4 mm2, P <0.001), superior airway space width (8.9±2.0 vs. 10.0±2.0 mm2, P =0.039), soft palate width (10.9±1.0 vs. 9.8±1.4, P =0.005) and length (45.4±3.8 vs. 43.9±4.2 mm, P =0.033) were significantly larger with the MAD intra-orally. Additionally, the tongue length decreased (84.1±5.3 vs. 80.7±5.9 mm, P =0.002), while the tongue height increased significantly (27.0±2.4 vs. 29.9±2.5 mm, P =0.003) with the MAD intra-orally. There were no significant changes in skeletal and dental cephalometric variables after 1 year of MAD therapy. Conclusions: Our results show significant enlargement of the upper airway dimensions with the MAD intra-orally in patients with mild to moderate OSA. Although there were no significant changes in skeletal and dental cephalometric variables after 1 year of MAD therapy, close follow-up during MAD therapy is advisable to prevent potentially relevant occlusal changes.","PeriodicalId":500956,"journal":{"name":"Radiološki vjesnik","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiation protection in MSCT diagnostics","authors":"Franciska Čanaki, Krešimir Dolić","doi":"10.55378/rv.47.2.6","DOIUrl":"https://doi.org/10.55378/rv.47.2.6","url":null,"abstract":"Sustavni pregled literature na temu „Zaštita od zračenja kod MSCT pretraga“ analizira prihvaćene i ustaljene, a naglašava moderne metode zaštite od zračenja u području višeslojne kompjutorizirane tomografije ( multislice computed tomography, MSCT). Cilj rada je upoznati čitatelja o osnovnim pojmovima vezanim uz zaštitu od zračenja, biološkom utjecaju ionizirajućeg zračenja isporučenog tijekom MSCT pretrage na ljudski organizam i mjerenju njegovih razina, parametrima koji utječu na smanjenje (ili nepravilnim korištenjem, povećanje) doze zračenja te načinima kako se pravilnom adaptacijom tih parametara može značajno utjecati na ozračenost pacijenta tijekom MSCT pregleda te sažeti najvažnije spoznaje glede optimizacije zaštite od zračenja i različite tehnike njenog postizanja. Zdravstvenim radnicima koji sudjeluju u provođenju postupaka MSCT dijagnostike ovaj rad može služiti kao podsjetnik temeljnih pojmova i važnosti savjesnog provođenja mjera zaštite od zračenja u svakodnevnoj praksi.","PeriodicalId":500956,"journal":{"name":"Radiološki vjesnik","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"7T MRI versus 3T MRI in brain diseases diagnosis","authors":"Jelena Martinović, Tatjana Matijaš","doi":"10.55378/rv.47.2.4","DOIUrl":"https://doi.org/10.55378/rv.47.2.4","url":null,"abstract":"MRI has greatly improved diagnostic medicine in recent decades. By constantly changing and improving technological aspects, MRI is becoming an increasingly sophisticated and refined method. By constantly tending to increase the used magnetic field, the spatial resolution and contrast increase due to the increase in SNR. These factors enable a detailed and clear presentation of previously invisible pathologies, especially pathologies in the brain. The aim of this work is to compare the importance of the technological features of 3T and 7T MRI in brain imaging and to distinguish their advantages and disadvantages. 3T MRI is used in daily clinical practice worldwide. One of the basic questions that scientists deal with in most research is the importance of 7T compared to 3T in the presentation of various brain pathologies. It was found that the improved technological characteristics of the device with a higher magnetic field affect the better representation of epileptogenic lesions and lesions that are specific for multiple sclerosis. In addition, a better representation of the internal structure of the tumor, a better representation of aneurysms and microbleeds and changes that are characteristic of neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease is obtained. It was of great importance to determine whether there is superiority of 7T in these pathologies to determine all the available possibilities, advantages and disadvantages because these are diseases that have an increasing prevalence in the population. On the 7T MRI, there are also technological problems that can lead to poor recording quality, for which various solutions are proposed and investigated. After reviewing numerous studies, it was determined that 3T MRI is a quality device for current use, but 7T has the ability to display details and can provide a higher quality image and greater diagnostic precision and can be of great importance, especially in certain patients where 3T is not detailed enough. It should be noted that 7T MRI still needs to be researched, but it is safe for human use and represents the future of diagnostic medicine.","PeriodicalId":500956,"journal":{"name":"Radiološki vjesnik","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Budućnost tehnika korekcije artefakta micanja na MR uređaju","authors":"Dubravko Bobinec, Krešimir Dolić","doi":"10.55378/rv.47.2.2","DOIUrl":"https://doi.org/10.55378/rv.47.2.2","url":null,"abstract":"Motion during the MR examination affects the degradation of the image in the form of „ghosting“ or blurring and is one of the last major unresolved issues. The patient’s movements can be of different scope, directions and orientation, making it difficult to find a solution from the early days of MR (Magnetic Resonance) development. Today, there are three main strategies for combating motion artefacts: motion prevention, motion reduction and motion correction. Due to the lack of possibilities and exhausted ideas, most work is being done on the development of motion correction using MR navigators or prospective and retrospective methods. Of the future techniques, the most promising are SMS (Simultaneous Multi-Slice) sequences and CS (Compres­sed Sensing) due to the resistance to movement and shorter recording time compared to conventional sequences. There is currently no general solution for the artefact of motion, but the problem is approached according to a specific case by choosing the method with the least shortcomings and taking into account the type of movement and the sequence of selection. More research is needed in clinical settings given the complexity and diversity of the problem with the involvement of a multidisciplinary team.","PeriodicalId":500956,"journal":{"name":"Radiološki vjesnik","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incidence of pulmonary thromboembolism in patients who underwent CT pulmonary angiography in the first quarter of 2023 at CHC Rijeka","authors":"Lucija Župan, Melita Kukuljan, Ena Mršić","doi":"10.55378/rv.47.2.9","DOIUrl":"https://doi.org/10.55378/rv.47.2.9","url":null,"abstract":"Cilj : Plućna tromboembolija (PTE) je hitno medicinsko stanje kod kojeg dolazi do okluzije jedne ili više grana plućnih arterija tromboembolusom. CT plućna angiografija (CTPA) je brza, neinvazivna radiološka metoda kojom se postavlja dijagnoza PTE. Glavni cilj ovog rada je odrediti incidenciju pozitivnih PTE nalaza kod 524 pacijenta podvrgnutih CTPA te odrediti učestalost zahvaćenih grana plućnih arterija. Nadalje, jedan od ciljeva je i odrediti incidenciju usputnih nalaza (plućni nodusi, tumor pluća, pneumonija, infarkt pluća, pleuralni izljev). Ispitanici i metode : U ovom retrospektivnom istraživanju prikupljeni su podaci 524 bolesnika koji su zbog sumnje na PTE podvrgnuti CTPA pregledu na Kliničkom zavodu za dijagnostičku i intervencijsku radiologiju, na lokalitetu Sušak, u Kliničkom bolničkom centru (KBC) Rijeka, u razdoblju od siječnja do travnja 2023. godine. Svi potrebni podaci navedeni u nalazu radiologa prikupljeni su iz integriranog bolničkog informacijskog sustava (IBIS) i pripadajuće aplikacije (ISSA). Rezultati : Od ukupno 524 bolesnika podvrgnutih CTPA, PTE je dokazana kod 97 ili 18,51% pacijenata. U našem istraživanju bio je podjednak broj ispitanika muškog i ženskog spola (260 ili 49,62% naprema 264 ili 50,39%). Nešto je veća incidencija PTE bila kod muškaraca (52 ili 53,61%) nego kod žena (45 ili 46,39%). Najveći broj bolesnika (262 ili 50,00%) pripadao je dobnom razredu između 61. i 80. godine života. Usputni nalazi opisani na CTPA, prema redoslijedu učestalosti su bili: pneumonije (37,15%), pleuralni izljevi (34,86%), plućni nodusi (16,79%), tumori pluća (6,87%) i plućni infarkti (4,33%). Zaključak : CT plućna angiografija predstavlja zlatni standard za detekciju plućne tromboembolije. Pregledom dostupne literature, incidencija PTE je komparabilna s rezultatima našeg istraživanja. U našoj, kao i u većini recentnih studija, PTE je najčešće detektirana u segmentalnim i subsegmentalnim granama plućnih arterija, dok se incidencija usputnih nalaza detektiranih na CTPA ne podudara s rezultatima drugih istraživanja.","PeriodicalId":500956,"journal":{"name":"Radiološki vjesnik","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}