Polish Journal of Radiology最新文献

{"title":"The role of magnetic resonance imaging and magnetic resonance sialography in the evaluation of salivary sialolithiasis: radiologic-endoscopic correlation.","authors":"Omneya Gamaleldin,&nbsp;Emad A Magdy,&nbsp;Hesham Zoheir,&nbsp;Gihan Mohamed Shehata,&nbsp;Nermeen Elsebaie","doi":"10.5114/pjr.2022.118899","DOIUrl":"https://doi.org/10.5114/pjr.2022.118899","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the role of magnetic resonance imaging (MRI) and MR sialography in salivary gland calculi in correlation with sialendoscopy.</p><p><strong>Material and methods: </strong>In this prospective study, pre-therapeutic MRI was performed for patients with clinically suspected sialolithiasis. In addition, sialendoscopy with or without surgery was performed. The detectability, number, size, and location of calculi (distance of obstruction from the ostium and masseter line) and the condition of the main duct at MRI were reported. Agreement between the 2 readers was confirmed for all MRI findings. Data regarding the detectability, number, and size of calculi were correlated with endoscopy.</p><p><strong>Results: </strong>There was excellent agreement between the 2 readers regarding the detection and number of calculi at MR sialography (κ = 1, <i>p</i> < 0.001). As regards MRI measurements, excellent interclass correlation was found between the 2 readers regarding size of calculi, distance of calculi from the ostium, and distance from the masseter line (κ = 0.98, 0.98, 0.97, respectively; <i>p</i> < 0.001). In correlation with sialendoscopy, MRI was false negative in 1 patient, and it missed 1 calculus in 3 patients with multiple calculi. There was no statistically significant difference between the size of calculi detected by MRI and true size of calculi retrieved by sialendoscopy.</p><p><strong>Conclusion: </strong>MR sialography is an accurate modality for diagnosis of the presence, size, and location of sialolithiasis and offers accurate ductal mapping for sialendoscopists.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/36/24/PJR-87-47670.PMC9453473.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33460193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic value of 3.0 T versus 1.5 T MRI in staging prostate cancer: systematic review and meta-analysis.","authors":"Mayur Virarkar,&nbsp;Janio Szklaruk,&nbsp;Radwan Diab,&nbsp;Roland Bassett,&nbsp;Priya Bhosale","doi":"10.5114/pjr.2022.118685","DOIUrl":"https://doi.org/10.5114/pjr.2022.118685","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the diagnostic performance of 3.0 T and 1.5 T MRI in the staging of prostate cancer.</p><p><strong>Material and methods: </strong>English-language studies on the diagnostic accuracy of 3.0 T and 1.5 T MRI in prostate cancer staging published through May 2020 were searched for in relevant databases. The focus was on studies in which both 3.0 T and 1.5 T MRI were performed in the study population, to reduce interstudy heterogeneity. Pooled sensitivity, specificity, diagnostic odds ratio (DOR), and area under the receiver operating characteristic curve were determined for 3.0 T and for 1.5 T along with 95% confidence intervals (CIs).</p><p><strong>Results: </strong>Out of 8 studies identified, 4 met the inclusion criteria. 3.0 T (<i>n</i> = 160) had a pooled sensitivity of 69.5% (95% CI: 56.4-80.1%) and a pooled specificity of 48.8% (95% CI: 6.0-93.4%), while 1.5 T (<i>n</i> = 139) had a pooled sensitivity of 70.6% (95% CI: 55.0-82.5%; <i>p</i> = 0.91) and a pooled specificity of 41.7% (95% CI: 6.2-88.6%; <i>p</i> = 0.88). The pooled DOR for 3.0 T was 3 (95% CI: 0-26.0%), while the pooled DOR for 1.5 T was 2 (95% CI: 0-18.0%), which was not a significant difference (<i>p</i> = 0.89).</p><p><strong>Conclusions: </strong>3.0 T has slightly better diagnostic performance than 1.5 T MRI in prostate cancer staging (3 vs. 2), although without statistical significance. Our findings suggest the need for larger, randomized trials directly comparing 3.0 T and 1.5 T MRI in prostate cancer.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/26/86/PJR-87-47621.PMC9373864.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of COVID-19 on radiological findings in patients accessing the emergency department: a multicentric study.","authors":"Vincenzo Vingiani,&nbsp;Andres F Abadia,&nbsp;Gianfranco Belmonte,&nbsp;Claudia Rutigliano,&nbsp;Luigi Pasqualetto,&nbsp;Alfonso Presidente,&nbsp;Claudio Napolitano,&nbsp;Maurizio Lelario,&nbsp;Antonio Corvino,&nbsp;Alessandro Posa","doi":"10.5114/pjr.2022.118659","DOIUrl":"https://doi.org/10.5114/pjr.2022.118659","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this multicentric study is to illustrate how the COVID-19 pandemic lockdown affected the workload and outcomes of radiological examinations in emergency radiology.</p><p><strong>Material and methods: </strong>The exams performed in the radiology departments of 4 Italian hospitals during 3 weeks of the Italian lockdown were retrospectively reviewed and compared to the exams conducted during the same period in 2019. Only exams from the emergency department (ED) were included. Two radiologists from each hospital defined the cases as positive or negative findings, based on independent blind readings of the imaging studies. In the case of differences in the evaluation, consensus was reached amongst them via discussion. Continuous measurements are presented as median and interquartile range, while categorical measurements are presented as frequency and percentage; <i>p</i>-values were calculated using the <i>t</i>-test, Mann-Whitney test, and the c² test.</p><p><strong>Results: </strong>There were 745 patients (53% male; 62 years [44-78]) who underwent radiological examinations in 2020 vs. 2623 (52% male; 56 years [35-76]) in 2019 (<i>p</i> < 0.001). Furthermore, the total number of ED exams dropped from 3206 (2019) to 939 (2020), with a relative increase of CT examinations from 23% to 33% (<i>p</i> < 0.001). The percentage of patients with a positive finding was significantly higher in 2020 (355, 48%) compared to 2019 (684, 26%) (<i>p</i> < 0.001).</p><p><strong>Conclusions: </strong>Our findings show that despite the reduction of emergency radiological examinations, there was a rela-tive increase in the number of positive cases. These significant findings are crucial to ensure better organization of radiology departments and improve patient management during similar health emergencies in the future.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/81/f5/PJR-87-47606.PMC9373861.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the frequency of incidental findings and their clinical significance in multiparametric prostate magnetic resonance imaging examination.","authors":"Emre Emekli,&nbsp;Elif Gündoğdu","doi":"10.5114/pjr.2022.118312","DOIUrl":"https://doi.org/10.5114/pjr.2022.118312","url":null,"abstract":"Purpose Conventional diagnostic methods have limitations in the diagnosis of prostate cancer (PCa); therefore, the use of multiparametric magnetic resonance imaging (mpMRI) in PCa has become widespread. We aimed to determine the frequency of IF detected in the mpMRI examination according to organ distribution and clinical significance. Material and methods mpMRI examinations performed between January 2015 and 2020 based on the diagnosis or suspicion of PCa were retrospectively evaluated. IFs were divided into 2 groups, as genitourinary system and non- genitourinary system findings. In addition, IFs were also evaluated in 2 groups, as clinically significant and clinically non-significant. The patient population was divided into age ranges, and the frequency of IFs in these age ranges and their clinical significance were recorded. Results The mpMRI examinations of 426 patients revealed a total of 321 Ifs, comprising 212 (49.8%) genitourinary (41.1%) and 189 (58.9%) extragenitourinary findings. The mean age of the patients was 63.53 ± 7.89 years. As the age increased, the rate of IFs increased (p = 0.001). However, there was no increase for the 75-year-old group compared to the 65-74-year-old age range (p = 0.853). There were a total of 22 (6.9%) clinically significant Ifs – 4 associated with the genitourinary system and 18 extragenitourinary. Conclusions Although the rate of clinically significant IF was only 6.9%, this rate was high in patients, especially in those over the age of 65 years. It should be kept in mind that the early detection of these findings in the asymptomatic period will increase the survival and successful treatment of patients.","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/98/2a/PJR-87-47547.PMC9373867.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic accuracy and prognostic value of lung ultrasound in coronavirus disease (COVID-19).","authors":"Javid Azadbakht,&nbsp;Maryam Saffari,&nbsp;Hamidreza Talarie,&nbsp;Mahsa Masjedi Esfahani,&nbsp;Mahdi Barzegar","doi":"10.5114/pjr.2022.118304","DOIUrl":"https://doi.org/10.5114/pjr.2022.118304","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to assess the correlation between lung ultrasound (LUS) and computed tomography (CT) findings and the predictability of LUS scores to anticipate disease characteristics, lab data, clinical severity, and mortality in patients with COVID-19.</p><p><strong>Material and methods: </strong>Fifty consecutive hospitalized PCR-confirmed COVID-19 patients who underwent chest CT scan and LUS on the first day of admission were enrolled. The LUS score was calculated based on the presence, severity, and distribution of parenchymal abnormalities in 14 regions.</p><p><strong>Results: </strong>The participants' mean age was 54.60 ± 19.93 years, and 26 (52%) were female. All patients had CT and LUS findings typical of COVID-19. The mean value of CT and LUS severity scores were 11.80 ± 3.89 (ranging from 2 to 20) and 13.74 ± 6.43 (ranging from 1 to 29), respectively. The LUS score was significantly higher in females (<i>p</i> = 0.016), and patients with dyspnoea (<i>p</i> = 0.048), HTN (<i>p</i> = 0.034), immunodeficiency (<i>p</i> = 0.034), room air SpO₂ ≤ 93 (<i>p</i> = 0.02), and pleural effusion (<i>p</i> = 0.036). LUS findings were strongly correlated with CT scan results regarding lesion type, distribution, and severity in a region-by-region fashion (92-100% agreement). An LUS score of 14 or higher was predictive of room air SpO₂ ≤ 93 and ICU admission, while an LUS score ≥ 12 was predictive of death (<i>p</i> = 0.011, 0.023, and 0.003, respectively).</p><p><strong>Conclusions: </strong>Our results suggested that LUS can be used as a valuable tool for detecting COVID-19 pneumonia and determining high-risk hospitalized patients, helping to triage and stratify high-risk patients, which waives the need to undertake irradiating chest CT and reduces the burden of overworked CT department staff.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/9b/e2/PJR-87-47545.PMC9373868.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The influence of contrast enhancement and experience of observers on the assessment of mediastinal lymph nodes in sarcoidosis patients.","authors":"Magdalena Sobocinska,&nbsp;Marcin Białecki,&nbsp;Bartosz Sobocinski,&nbsp;Ida Martynowska,&nbsp;Jakub Ciescinski","doi":"10.5114/pjr.2022.118303","DOIUrl":"https://doi.org/10.5114/pjr.2022.118303","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to assess the influence of contrast enhancement (CE) and experience of observers on the assessment of chest lymph nodes in patients with sarcoidosis.</p><p><strong>Material and methods: </strong>A retrospective analysis of chest lymph nodes on computed tomography (CT) examinations, including CE and non-contrast-enhanced (non-CE) phase, was performed on 40 patients with proven diagnosis of sarcoidosis. Phases were separated, anonymized, and randomized. The assessment was performed by 5 observers: 2 general radiologists, 2 residents, and a senior chest CT expert.</p><p><strong>Results: </strong>There were no significant differences between radiologists and residents, apart from the determination of the 4R node short diameter on CE images. Agreement between the reference observer and both residents and specialists was equally high, without any significant difference in the assessment all chest nodes and hilar nodes, and between non-CE and CE images. There was a significant difference between all observers in the determination of the largest 4R node short diameter on non-CE images, but not on CE images. The number of affected node levels was found to be significantly higher when evaluated on CE images than on non-CE images. Compared to CE images, non-CE computed tomography has sensitivity of 0.94-1.00 and specificity of 0.98-1.00, depending on the observer.</p><p><strong>Conclusions: </strong>The application of contrast medium has a limited impact on the quality of assessment of the chest lymph nodes in patients with sarcoidosis, regardless of the experience of the observer.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d8/e7/PJR-87-47544.PMC9373862.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Update on the limited sensitivity of computed tomography relative to RT-PCR for COVID-19: a systematic review.","authors":"Clarissa Martin, Nina Cheng, Bryant Chang, Namrata Arya, Michael Joseph Diaz, Keldon Lin, Muhammad Umair, Joseph Waller, Travis Henry","doi":"10.5114/pjr.2022.118238","DOIUrl":"10.5114/pjr.2022.118238","url":null,"abstract":"<p><strong>Purpose: </strong>The global and ongoing COVID-19 outbreak has compelled the need for timely and reliable methods of detection for SARS-CoV-2 infection. Although reverse transcription-polymerase chain reaction (RT-PCR) has been widely accepted as a reference standard for COVID-19 diagnosis, several early studies have suggested the superior sensitivity of computed tomography (CT) in identifying SARS-CoV-2 infection. In a previous systematic review, we stratified studies based on risk for bias to evaluate the true sensitivity of CT for detecting SARS-CoV-2 infection. This study revisits our prior analysis, incorporating more current data to assess the sensitivity of CT for COVID-19.</p><p><strong>Material and methods: </strong>The PubMed and Google Scholar databases were searched for relevant articles published between 1 January 2020, and 25 April 2021. Exclusion criteria included lack of specification regarding whether the study cohort was adult or paediatric, whether patients were symptomatic or asymptomatic, and not identifying the source of RT-PCR specimens. Ultimately, 62 studies were included for systematic review and were subsequently stratified by risk for bias using the QUADAS-2 quality assessment tool. Sensitivity data were extracted for random effects meta-analyses.</p><p><strong>Results: </strong>The average sensitivity for COVID-19 reported by the high-risk-of-bias studies was 68% [CI: 58, 80; range: 38-96%] for RT-PCR and 91% [CI: 87, 96; range: 47-100%] for CT. The average sensitivity reported by the low-risk-of-bias studies was 84% [CI: 0.75, 0.94; range: 70-97%] for RT-PCR and 78% [CI: 71, 0.86; range: 44-92%] for CT.</p><p><strong>Conclusions: </strong>On average, the high-risk-of bias studies underestimated the sensitivity of RT-PCR and overestimated the sensitivity of CT for COVID-19. Given the incorporation of recently published low-risk-of-bias articles, the sensitivities according to low-risk-of-bias studies for both RT-PCR and CT were higher than previously reported.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/37/d1/PJR-87-47518.PMC9373863.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of 3T proton MR spectroscopy in the spinal cord - preliminary results.","authors":"Pawel Wawrzyniak,&nbsp;Anna Hebda,&nbsp;Sylwia Heinze,&nbsp;Barbara Bobek-Billewicz","doi":"10.5114/pjr.2022.118194","DOIUrl":"https://doi.org/10.5114/pjr.2022.118194","url":null,"abstract":"<p><strong>Purpose: </strong>¹H-magnetic resonance spectroscopy (¹H-MRS) is a non-invasive technique that provides information on tissue metabolism and biochemistry. Because of technical difficulties, this method is rarely used in spinal cord examination. The main goal of this study was to develop a routine protocol for MRS of intramedullary lesions.</p><p><strong>Material and methods: </strong>A ¹H-MRS protocol was set on a group of healthy volunteers. Forty-eight spectra were acquired in total. Thirty of them were acquired in cervical spinal cord, and the remaining 18 spectra were acquired in the thoracic spinal cord.</p><p><strong>Results: </strong>In ¹H-MRS of the spinal cord one of the most important problems is small voxel size. Mean voxel size in this study was 7 × 9 × 29 mm, which is much smaller than in brain examinations. Finally, almost 60% of spectra were of acceptable quality in volunteer examinations, which enabled the subsequent examinations.</p><p><strong>Conclusions: </strong>Challenges of spinal cord spectroscopy were discussed, and the ability of providing additional diagnostic information was proven.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/da/6c/PJR-87-47511.PMC9373865.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the effectiveness of partial splenic endovascular embolization in patients with refractory thrombocytopaenia.","authors":"Maciej Rabczyński,&nbsp;Monika Fenc,&nbsp;Jarosław Dybko,&nbsp;Jerzy Garcarek,&nbsp;Marcin Miś,&nbsp;Maciej Guziński","doi":"10.5114/pjr.2022.118159","DOIUrl":"https://doi.org/10.5114/pjr.2022.118159","url":null,"abstract":"<p><strong>Purpose: </strong>Partial splenic endovascular embolization (PSEE) could be an option for patients with thrombocytopaenia (TCP). We selected a group of 22 patients diagnosed with refractory TCP to undergo PSEE, and we followed them for detailed analysis.</p><p><strong>Material and methods: </strong>Twenty-two patients aged 27-75 years (mean 46.5 ± 3.5 years) underwent PSEE, and 5 participants underwent a second PSEE due to the lack of effectiveness after the first procedure. A total of 27 PSEEs were performed. A semi-quantitative scale was used to assess the severity of the post-embolization syndrome. The percentage of spleen parenchyma excluded from circulation was 30-70%. We used the mixture of Histoacryl N-butyl cyanoacry-late glue and Lipiodol in 10 cases, spirals in 10 cases, and polyvinyl alcohol in 7 cases, for the embolization.</p><p><strong>Results: </strong>The mean value of platelet count (PLT) before procedure increased from 22.0 ± 15.0 to 87.7 ± 67.9 (<i>p</i> < 0.05) in a mean period of 194 days. In 2 cases severe post-embolization syndrome was observed. Closure less than 50% of the spleen circulation was associated with poorly expressed post-embolization symptoms. Serious complications occurred in 1 patient (3.5%). A strong positive correlation (<i>r</i> = 0.8, <i>p</i> < 0.05) was found between C-reactive protein (CRP) and the severity of post-embolization syndrome. Increased symptoms of post-embolization syndrome were also associated with a significant increase in hospitalization time - 27.0 vs. 7.2 days (<i>r</i> = 0.66, <i>p</i> < 0.05).</p><p><strong>Conclusions: </strong>Partial endovascular embolization of the spleen (PSEE) may be a valuable therapeutic option for patients with refractory TCP. PSEE is a safe method with a low complication rate.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ea/6e/PJR-87-47495.PMC9373866.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A descriptive neuroimaging study of retinoblastoma in children: magnetic resonance imaging features.","authors":"Gunes Orman,&nbsp;Thierry A G M Huisman","doi":"10.5114/pjr.2022.118107","DOIUrl":"https://doi.org/10.5114/pjr.2022.118107","url":null,"abstract":"<p><strong>Purpose: </strong>Retinoblastoma (RB) is the most common intraocular malignancy of childhood. Magnetic resonance imaging (MRI) is essential for initial diagnosis, tumour extension, staging, and treatment planning of RB. Awareness of neuro-imaging findings and determining local extent are essential for early diagnosis and therapy guidance. The purpose of this study is to evaluate and to provide a detailed list of neuroimaging features of RB to improve the diagnostic work-up of children with RB.</p><p><strong>Material and methods: </strong>Retrospective review was performed among children with confirmed RB diagnosis. MRI features were identified to evaluate: 1) growth pattern; 2) intraocular extension; 3) extraocular extension; 4) central nervous system disease; 5) conventional MRI characteristics of the RB lesions; and 6) DWI and ADC characteristics. These features were compared between unilateral and bilateral RB lesions.</p><p><strong>Results: </strong>Twenty-four children (male/female: 18/6) were included in this study. The mean age at the time of diagnosis was 14.7 (11.4) months. In total, 34 RB lesions (bilateral = 18) were evaluated for the study. The most common features on MRI were: 1) endophytic RB lesion (50%); 2) subretinal haemorrhage (38%); 3) scleral involvement (3%); 4) leptomeningeal disease (12%); 5) contrast enhancement (97%); and 6) restricted diffusion (88%). The mean ADC value was 0.64 (0.15) × 10^-3 mm²/s. Choroidal invasion (<i>p</i> = 0.05) and scleral involvement (<i>p</i> = 0.04) were significantly higher for bilateral RB lesions.</p><p><strong>Conclusions: </strong>Contrast enhancement and restricted diffusion are the most common neuroimaging features of RB. Choroidal invasion and scleral involvement are more frequently seen in bilateral disease.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b1/4d/PJR-87-47485.PMC9373869.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}