Acta radiologica最新文献_第2页

Morphological remodeling of the repaired sigmoid sinus bone wall in patients with pulsatile tinnitus after successful surgical reconstruction: an ultra-high-resolution CT study. 搏动性耳鸣患者手术重建成功后修复的乙状窦骨壁形态重塑：超高分辨率 CT 研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-11-11 DOI: 10.1177/02841851241279544

Chihang Dai, Pengfei Zhao, Guopeng Wang, Heyu Ding, Han Lv, Shusheng Gong, Zhenchang Wang

{"title":"Morphological remodeling of the repaired sigmoid sinus bone wall in patients with pulsatile tinnitus after successful surgical reconstruction: an ultra-high-resolution CT study.","authors":"Chihang Dai, Pengfei Zhao, Guopeng Wang, Heyu Ding, Han Lv, Shusheng Gong, Zhenchang Wang","doi":"10.1177/02841851241279544","DOIUrl":"10.1177/02841851241279544","url":null,"abstract":"Background: Sigmoid sinus wall reconstruction (SSWR) is an effective treatment for pulsatile tinnitus (PT). However, follow-up postoperative imaging manifestations have not been extensively reported.Purpose: To evaluate the morphological changes in patients with PT after successful SSWR using ultra-high-resolution computed tomography (U-HRCT).Material and methods: Data were retrospectively analyzed from 10 patients with PT who underwent successful SSWR primarily with autologous bone powder. U-HRCT scans were performed within 3 days of surgery and repeated 6 months later. The integrity, relative density, extent, and shape of the repaired wall were analyzed. The chi-square test was used to compare the categorical variables and the Phi (φ) coefficient was used to represent the magnitude of the correlation.Results: Among the 10 patients with PT, 1 (10%) achieved complete coverage of the defect with the residual bone, 8 (80%) had partial coverage, and 1 (10%) showed complete separation. A gap between the repaired wall and residual bone in the initial U-HRCT was linked to incomplete defect coverage in the subsequent U-HRCT scan (P < 0.001, φ = 0.903). The repaired wall shrank from the periphery to the center and the density increased. The repaired wall compressed into the sigmoid sinus retracts over time, reshaping into a naturally curved sigmoid sinus sulcus.Conclusion: Morphological remodeling is a typical characteristic of the repaired sigmoid sinus wall in patients with PT. Short-term incomplete repair may imply incomplete coverage of the defect in the future, but this is not correlated with recurrence.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1506-1514"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep-learning reconstruction enhances image quality of Adamkiewicz Artery in low-keV dual-energy CT. 深度学习重建提高了低keV双能CT中Adamkiewicz动脉的图像质量。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-10-22 DOI: 10.1177/02841851241288507

Fuminari Tatsugami, Toru Higaki, Ikuo Kawashita, Chikako Fujioka, Yuko Nakamura, Shinya Takahashi, Kazuo Awai

{"title":"Deep-learning reconstruction enhances image quality of Adamkiewicz Artery in low-keV dual-energy CT.","authors":"Fuminari Tatsugami, Toru Higaki, Ikuo Kawashita, Chikako Fujioka, Yuko Nakamura, Shinya Takahashi, Kazuo Awai","doi":"10.1177/02841851241288507","DOIUrl":"10.1177/02841851241288507","url":null,"abstract":"Background: Low-keV virtual monoenergetic images (VMIs) of dual-energy computed tomography (CT) enhances iodine contrast for detecting small arteries like the Adamkiewicz artery (AKA), but image noise can be problematic. Deep-learning image reconstruction (DLIR) effectively reduces noise without sacrificing image quality.Purpose: To evaluate whether DLIR on low-keV VMIs of dual-energy CT scans improves the visualization of the AKA.Material and methods: We enrolled 29 patients who underwent CT angiography before aortic repair. VMIs obtained at 70 and 40 keV were reconstructed using hybrid iterative reconstruction (HIR), and 40 keV VMIs were reconstructed using DLIR. The image noise of the spinal cord, the maximum CT values of the anterior spinal artery (ASA), and the contrast-to-noise ratio (CNR) of the ASA were compared. The overall image quality and the delineation of the AKA were evaluated on a 4-point score (1 = poor, 4 = excellent).Results: The mean image noise of the spinal cord was significantly lower on 40-keV DLIR than on 40-keV HIR scans; they were significantly higher than on 70-keV HIR images. The CNR of the ASA was highest on the 40-keV DLIR images among the three reconstruction images. The mean image quality scores for 40-keV DLIR and 70-keV HIR scans were comparable, and higher than of 40-keV HIR images. The mean delineation scores for 40-keV HIR and 40-keV DLIR scans were significantly higher than for 70-keV HIR images.Conclusion: Visualization of the AKA was significantly better on low-keV VMIs subjected to DLIR than conventional HIR images.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1569-1575"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Can the second phase of contrast-enhanced MRA of the neck provide additional information in the acute stroke setting? 颈部对比增强 MRA 的第二阶段能否为急性卒中提供更多信息？

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-11-05 DOI: 10.1177/02841851241290728

P Shah, H Kale, M Shrivastava, D Sanghvi, M Munshi, G Sangani, K Mundada

{"title":"Can the second phase of contrast-enhanced MRA of the neck provide additional information in the acute stroke setting?","authors":"P Shah, H Kale, M Shrivastava, D Sanghvi, M Munshi, G Sangani, K Mundada","doi":"10.1177/02841851241290728","DOIUrl":"10.1177/02841851241290728","url":null,"abstract":"Background: Double-concentration magnetic resonance imaging (MRI) contrast agents are frequently used in contrast-enhanced MR angiography (CE-MRA) of the head and neck. To avoid mistiming the peak concentration of intraluminal contrast (due to shorter duration of peak), a second acquisition is sometimes performed.Purpose: To evaluate additional information from the second acquisition of CE-MRA and compare the collateral scoring to the hypoperfusion index obtained on MR perfusion, and to investigate presence of pseudo-occlusion using the second phase of CE-MRA.Material and methods: A retrospective study was conducted. CE-MRA of the brain/neck, dynamic susceptibility contrast (DSC) MR perfusion scan (in majority) and subsequent digital subtraction angiography (DSA) were evaluated in patients with previous acute internal carotid artery (ICA)/middle cerebral artery (MCA) occlusion. Evaluation of CE-MRA/MR perfusion and DSA was performed by three experienced neuroradiologists and one neurointerventionist, respectively.Results: The site of ICA occlusion was seen to be distal to the site noted on early arterial phase (pseudo-occlusion of ICA) in 28.5% of patients. A significant negative correlation was seen between a higher HIR and collateral score.Conclusion: Evaluation of second phase CE-MRA can provide valuable information that may be otherwise lost if only the early arterial phase is evaluated.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1540-1547"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial.

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 DOI: 10.1177/02841851241303442

Henrik S Thomsen

引用次数: 0

The association between ultrasonographic findings and pain, physical function, and symptoms in patients with shoulder pain. 肩痛患者的超声波检查结果与疼痛、身体功能和症状之间的关联。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-10-21 DOI: 10.1177/02841851241287309

Onur Engin, Atilla Hikmet Çilengir, Berna Dirim Mete

{"title":"The association between ultrasonographic findings and pain, physical function, and symptoms in patients with shoulder pain.","authors":"Onur Engin, Atilla Hikmet Çilengir, Berna Dirim Mete","doi":"10.1177/02841851241287309","DOIUrl":"10.1177/02841851241287309","url":null,"abstract":"Background: Shoulder ultrasonography (US) is commonly employed to differentiate the causes of shoulder pain. However, the correlation between ultrasonographic findings and the individual's functional disability and daily activities remains unexplored.Purpose: To investigate the relationship between shoulder US findings and physical function, disability, and pain.Material and methods: The study investigated patients with shoulder pain. Tendons of supraspinatus, infraspinatus, subscapularis, and long head of biceps brachii, acromiohumeral distance, and acromioclavicular joint (ACJ) degeneration were evaluated using US. The QuickDASH questionnaire was employed to evaluate physical function, symptoms, and disability, while the visual analog scale (VAS) was utilized to assess pain levels.Results: The study included 84 patients (69 [82.1%] women, mean age = 55.7 ± 11.9 years). Ultrasonographic examination revealed ACJ degeneration in 61 (21.4%) patients and biceps tendinitis in 21 (25%) patients. In addition, supraspinatus tendinosis was identified in 51 (61%) patients, while 28 (33%) exhibited a supraspinatus tear. The patients demonstrated a mean VAS score of 7.03 ± 1.49 and mean QuickDASH score of 45.6 ± 15.3. Individuals with a supraspinatus tear exhibited higher VAS (P = 0.008) and QuickDASH (P = 0.016) scores. Patients presenting with ACJ degeneration demonstrated increased VAS scores (P = 0.014), whereas those with biceps tendinopathy showed higher QuickDASH scores (P = 0.035).Conclusion: The results obtained from our research demonstrate significant correlations between ultrasonographic data and pain, disability, and physical manifestations. The findings of this study indicate that shoulder US provides valuable information regarding the difficulties individuals face in their daily tasks and the degree of pain they endure.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1521-1528"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visual assessment of cerebrospinal fluid flow dynamics using 3D T2-weighted SPACE sequence-based classification system. 利用基于三维 T2 加权 SPACE 序列分类系统对脑脊液流动态进行可视化评估。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-11-03 DOI: 10.1177/02841851241288219

İbrahim Feyyaz Naldemir, Ahmet Kursat Karaman, Hayri Ogul, Omer Onbas

{"title":"Visual assessment of cerebrospinal fluid flow dynamics using 3D T2-weighted SPACE sequence-based classification system.","authors":"İbrahim Feyyaz Naldemir, Ahmet Kursat Karaman, Hayri Ogul, Omer Onbas","doi":"10.1177/02841851241288219","DOIUrl":"10.1177/02841851241288219","url":null,"abstract":"Background: Flow-related signal void artifacts can be visualized on the T2-weighted (T2W) three-dimensional sampling perfection with application-optimized contrast (3D-SPACE) sequence. Flow void artifacts in the cerebral aqueduct and the fourth ventricle can provide information about cerebrospinal fluid (CSF) flow dynamics.Purpose: In this study, we aimed to test the performance of the T2W 3D-SPACE sequence in assessing the CSF flow in the aqueduct and/or fourth ventricle.Material and methods: A total of 137 patients (age range = 3-89 years) who underwent CSF flow study were included. The amount of signal loss on T2W 3D-SPACE due to flow in the aqueduct and fourth ventricle was assessed and graded using a 4-point scale of 0 (absence of flow void) to 3 (signal void filling the aqueduct and entire fourth ventricle). A correlation was then sought between the quantitative values obtained by phase-contrast magnetic resonance imaging (PC-MRI) and the amount of signal void in the 3D-SPACE sequence.Results: At the aqueduct level, there was a statistically significant difference in the forward flow velocity and the flow volume among different grades (all P < 0.001). In the grade 3 group, CSF peak systolic flow velocity and mean flow volume were found to be significantly higher than in the other grades (P < 0.001). The mean aqueduct area in the grade 0 group was found to be significantly different from that in the other classes (P < 0.001).Conclusion: The amount of signal loss in the fourth ventricle observed on T2W 3D-SPACE is correlated with the peak systolic velocity and flow volume measured quantitatively in PC-MRI.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1576-1582"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fully automated measurement of noise, signal-to-noise ratio, and contrast-to-noise ratio on chest CT images: feasibility and efficiency. 全自动测量胸部 CT 图像的噪声、信噪比和对比度-噪声比：可行性和效率。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-10-17 DOI: 10.1177/02841851241287315

Bozhe Mei, Zhangman Ma, Wanyun Fu, Linyang He, Zhicheng Ma, Xiangyang Gong

{"title":"Fully automated measurement of noise, signal-to-noise ratio, and contrast-to-noise ratio on chest CT images: feasibility and efficiency.","authors":"Bozhe Mei, Zhangman Ma, Wanyun Fu, Linyang He, Zhicheng Ma, Xiangyang Gong","doi":"10.1177/02841851241287315","DOIUrl":"10.1177/02841851241287315","url":null,"abstract":"Background: Rapid and accurate measurement of computed tomography (CT) image noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) is a clinical challenge.Purpose: To explore the feasibility of intelligent measurement of chest CT image noise, SNR, and CNR.Material and methods: A total of 300 chest CT scans were included in the study, which was divided into research dataset, internal test dataset, and external test dataset. Based on the research dataset, automatically segment and measure the average CT values and standard deviation (SD) of CT values for background air and lung field under different thresholds to obtain noise, SNR, and CNR results. Using the results of manual measurements as the reference standard, we determine the optimal threshold with the highest consistency. Using internal and external test datasets, validate the consistency of automated measurements of noise, SNR, and CNR at the optimal CT threshold with reference standards.Results: With background air set at -900 HU and lung field at -800 HU as thresholds, the automated measurements of noise, SNR, and CNR demonstrate the highest consistency with the reference standards. At the optimal threshold, the noise, SNR, and CNR measured automatically on both the internal (intraclass correlation coefficient [ICC] = 0.85-0.96) and external (ICC = 0.75-0.85) test datasets exhibit high consistency with their respective reference standards.Conclusion: The method we explored can intelligently measure the noise, SNR, and CNR of chest CT images, exhibits high consistency with radiologists, and offers a novel tool for image quality evaluation and analysis.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1491-1498"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142455567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prognostic performance of the Bova, sPESI, and Qanadli scores in patients with acute pulmonary embolism. 急性肺栓塞患者的 Bova、sPESI 和 Qanadli 评分的预后性能。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-10-24 DOI: 10.1177/02841851241289693

Mustafa Korkut, Alpaslan Yavuz, Fatih Selvi, Ökkeş Zortuk, Erdinç Hakan İnan, Hasan Can Güven

{"title":"Prognostic performance of the Bova, sPESI, and Qanadli scores in patients with acute pulmonary embolism.","authors":"Mustafa Korkut, Alpaslan Yavuz, Fatih Selvi, Ökkeş Zortuk, Erdinç Hakan İnan, Hasan Can Güven","doi":"10.1177/02841851241289693","DOIUrl":"10.1177/02841851241289693","url":null,"abstract":"Background: Acute pulmonary embolism (PE) is a disease with a serious prognosis and a high probability of death in the emergency department.Purpose: To investigate the prediction of PE-related mortality and intensive care admission (ICU) of Qanadli (Qscore), Bova, and simplified Pulmonary Embolism Severity Index (sPESI) scores.Material and methods: This retrospective observational study consisted of all patients diagnosed with acute PE who were imaged under computed tomography pulmonary angiography (CTPA) for a total of 5 years between 1 June 2018 and 1 June 2023. The prediction of radiological and clinical scores for mortality and ICU admission was examined.Results: A total of 95 patients were analyzed. Patients who died and those who were admitted to the ICU had a significantly higher frequency of being found to have a high-risk (≥1) sPESI score (P = 0.04 and P = 0.016, respectively). For mortality, the sPESI score was found to be significant; the sensitivity and specificity were observed as 54% and 66% (area under the curve [AUC]=0.670, 95% confidence interval [CI]=0.527-0.814; P = 0.020). For ICU admission, the sensitivity and specificity of the Qscore, sPESI, and Bova scores were 35%, 77%, and 58%, and 78%, 65%, and 84% respectively (AUC=0.626, 95% CI=0.511-0.740, P = 0.031; AUC=0.769, 95% CI=0.674-0.865, P < 0.001; and AUC=0.767, 95% CI=0.671-0.862, P < 0.001, respectively).Conclusion: It was found that the sPESI score was effective at predicting mortality in patients with acute PE. Qscore, sPESI, and Bova scores have been shown to be useful in predicting ICU admission.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1482-1490"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Castellvi classification of lumbosacral transitional vertebrae: comparison between conventional radiography, CT, and MRI. 腰骶部过渡椎体的 Castellvi 分类：传统放射摄影、CT 和 MRI 之间的比较。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-12-01 Epub Date: 2024-10-24 DOI: 10.1177/02841851241289355

Jaakko Hanhivaara, Juhani H Määttä, Pietari Kinnunen, Jaakko Niinimäki, Mika T Nevalainen

{"title":"Castellvi classification of lumbosacral transitional vertebrae: comparison between conventional radiography, CT, and MRI.","authors":"Jaakko Hanhivaara, Juhani H Määttä, Pietari Kinnunen, Jaakko Niinimäki, Mika T Nevalainen","doi":"10.1177/02841851241289355","DOIUrl":"10.1177/02841851241289355","url":null,"abstract":"Background: The reliability and diagnostic accuracy of commonly used diagnostic imaging modalities in the classification of lumbosacral transitional vertebrae (LSTV) are poorly known, and comparative studies are scarce.Purpose: To compare the diagnostic performance of conventional radiography (CR), computed tomography (CT), and magnetic resonance imaging (MRI) in classifying LSTVs.Material and methods: In this retrospective cross-sectional study, a total of 852 patients undergoing lumbar imaging studies using all three modalities were initially assessed for the presence of LSTV using CT scans. In total, 100 patients with LSTV anatomy were identified. Four readers performed blinded and independent evaluations of these 100 patients on each modality, and an experienced fellowship-trained radiologist performed a gold standard read using all three modalities. Inter-reader reliability metrics were analyzed in comparison to the gold standard. Statistical software R (4.2.1) was used for the analyses.Results: We found superior diagnostic efficacy for CT: the sensitivity, specificity, accuracy, and balanced accuracy were 76%, 93%, 77%, and 84%, respectively. For MRI, the metrics were 54%, 88%, 56%, and 68%, and for CR 32%, 85%, 42%, and 59%, respectively. Inter-reader reliability was found to be good for CT (κ = 0.63-0.71) and fair for both CR (κ = 0.16-0.32) and MRI (κ = 0.24-0.56).Conclusion: CT had the highest diagnostic performance in all measured metrics with good inter-reader reliability. MRI and CR showed fairly poor sensitivity and accuracy, and thus consideration should be used when classifying LSTVs with these two modalities.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"1515-1520"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Percutaneous radiofrequency ablation of hepatocellular carcinomas abutting the right posterior diaphragm: factors associated with tumor recurrence and overall survival. 经皮射频消融毗邻右后膈的肝细胞癌：与肿瘤复发和总生存期相关的因素。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-11-26 DOI: 10.1177/02841851241295392

Ji Soo Lee, Soo Hyun Ahn, Min Woo Lee, Seungchul Han, Ji Hye Min, Dong Ik Cha, Kyoung Doo Song, Tae Wook Kang, Hyunchul Rhim

{"title":"Percutaneous radiofrequency ablation of hepatocellular carcinomas abutting the right posterior diaphragm: factors associated with tumor recurrence and overall survival.","authors":"Ji Soo Lee, Soo Hyun Ahn, Min Woo Lee, Seungchul Han, Ji Hye Min, Dong Ik Cha, Kyoung Doo Song, Tae Wook Kang, Hyunchul Rhim","doi":"10.1177/02841851241295392","DOIUrl":"https://doi.org/10.1177/02841851241295392","url":null,"abstract":"Background: Radiofrequency ablation (RFA) of subphrenic hepatocellular carcinomas (HCCs) using ultrasound (US) guidance presents a challenge.Purpose: To evaluate local tumor progression (LTP) and overall survival (OS) after RFA of right posterior subphrenic HCCs, and to identify the risk factors for LTP and OS after RFA.Material and methods: We screened patients who underwent US-guided RFA for a single HCC <3 cm in the right posterior subphrenic area. Cumulative rates of LTP and OS were compared between multiple- and single-electrode treatments and artificial pleural effusion versus no-effusion groups using Kaplan-Meier curves and the log-rank test. The risk factors for LTP and OS were assessed.Results: A total of 36 patients were included. The cumulative 5-year and 10-year LTP rates were 32.9% and 39.6%, respectively, and the corresponding OS rates were 72.2% and 48.7%, respectively. The multiple-electrode group had significantly lower cumulative LTP rates compared to the single-electrode group (P < 0.001). The group receiving artificial pleural effusion showed a trend towards lower LTP rates than the no-effusion group (P = 0.076). The albumin-bilirubin (ALBI) grade was the only risk factor for LTP (hazard ratio [HR] = 4.17, 95% confidence interval [CI] = 1.26-14.55; P = 0.020). A lower albumin level was a risk factor for mortality (HR = 0.24, 95% CI = 0.07-0.79; P = 0.020).Conclusion: US-guided RFA with multiple electrodes and artificial pleural effusion tends to be linked with lower LTP rates. The ALBI grade and serum albumin level are risk factors for LTP and OS, respectively.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851241295392"},"PeriodicalIF":1.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0