journal
https://read.qxmd.com/read/37753552/li-rads-category-3-4-and-m-observations-a-multiple-parameters-diagnostic-model-for-hepatocellular-carcinoma
#1
JOURNAL ARTICLE
Jianwei Chen, Huizhen Chen, Dechun Zheng, Chuan Yan, Rongping Ye, Liting Wen, Yueming Li
BACKGROUND: Hepatic lesions categorized as LR-3, LR-4, and LR-M are challenging to accurately assess and diagnose. PURPOSE: To combine potential clinical and/or magnetic resonance imaging (MRI) features for a more comprehensive hepatocellular carcinoma (HCC) versus non-HCC diagnosis for patients with LR-3, LR-4, and LR-M graded lesions. METHODS: Data were consecutively retrieved from 82 at-risk patients with LR-3 (n = 43), LR-4 (n = 20), and LR-M (n = 23) lesions...
September 27, 2023: Acta Radiologica
https://read.qxmd.com/read/37753549/pediatric-presacral-tumors-with-intraspinal-extension-a-rare-entity-with-diagnostic-challenges
#2
REVIEW
Ebinesh A, Anjali Prakash, Aanchal Ashta, Anju Garg, Abhishek Verma, Prerna Padaliya
The presacral space is a potential space located between the rectum and the lumbosacral spine. It contains various primitive germ cell types that serve as the origin for a range of tumors. Imaging is crucial in characterizing, assessing the extent of and evaluating the treatment response to these tumors. We report a series of six cases of pediatric presacral tumors with intraspinal extension, including an immature sacrococcygeal teratoma (Altman type II), a malignant sacrococcygeal teratoma (Altman type IV), a neuroblastoma, a rhabdomyosarcoma, a clear cell sarcoma and an Ewing's sarcoma of the ilium...
September 27, 2023: Acta Radiologica
https://read.qxmd.com/read/37750179/external-validation-of-deep-learning-based-automated-detection-algorithm-for-chest-radiograph-practical-issues-in-outpatient-clinic
#3
JOURNAL ARTICLE
Da Eul Lee, Kum Ju Chae, Gong Yong Jin, Seung Yong Park, Jae Seok Jeong, Su Yeon Ahn
BACKGROUND: There have been no reports on diagnostic performance of deep learning-based automated detection (DLAD) for thoracic diseases in real-world outpatient clinic. PURPOSE: To validate DLAD for use at an outpatient clinic and analyze the interpretation time for chest radiographs. MATERIAL AND METHODS: This is a retrospective single-center study. From 18 January 2021 to 18 February 2021, 205 chest radiographs with DLAD and paired chest CT from 205 individuals (107 men and 98 women; mean ± SD age: 63 ± 8 years) from an outpatient clinic were analyzed for external validation and observer performance...
September 26, 2023: Acta Radiologica
https://read.qxmd.com/read/37743663/the-diagnosis-performance-of-convolutional-neural-network-in-the-detection-of-pulmonary-nodules-a-systematic-review-and-meta-analysis
#4
REVIEW
Xinyue Zhang, Bo Liu, Kefu Liu, Lina Wang
BACKGROUND: Pulmonary nodules are an early imaging indication of lung cancer, and early detection of pulmonary nodules can improve the prognosis of lung cancer. As one of the applications of machine learning, the convolutional neural network (CNN) applied to computed tomography (CT) imaging data improves the accuracy of diagnosis, but the results could be more consistent. PURPOSE: To evaluate the diagnostic performance of CNN in assisting in detecting pulmonary nodules in CT images...
September 24, 2023: Acta Radiologica
https://read.qxmd.com/read/37743551/reduced-radiation-dose-and-volume-of-contrast-medium-in-heart-rate-based-one-stop-computed-tomography-angiography-of-coronary-carotid-and-cerebrovascular-arteries
#5
JOURNAL ARTICLE
Hairong Yu, Hao Song, Xiaonan Sun, Tiangang Song, Anming Xie, Jianghua Xu, Ruiying Qin, Lihua Jing, Taiyang Zuo, Jie Zhao, Xiaomei Luan, Zengkun Wang, Huijing Chai, Yuanzhen Zhao, Peiji Song
BACKGROUND: Computed tomography angiography (CTA) is a reliable, non-invasive screening method for diagnosing panvascular disease. By using low contrast agent volume, CTA imaging enables one-stop multi-organ scanning, thereby minimizing the potential risk of contrast-induced nephropathy in patients with impaired renal function. PURPOSE: To evaluate the feasibility of one-stop CTA following a heart rate (HR)-based protocol using a low volume of contrast medium (CM) for examination of the coronary, carotid and cerebrovascular arteries...
September 24, 2023: Acta Radiologica
https://read.qxmd.com/read/37743550/patient-characteristics-and-disease-spectrum-in-a-german-vascular-anomalies-center
#6
JOURNAL ARTICLE
Felix Strübing, Annette Laurich, Christel Weiss, Ulrich Kneser, Stefan Schoenberg, Maliha Sadick
BACKGROUND: Vascular malformations are rare diseases that should be treated in dedicated vascular anomaly centers (VAC). There is only a small amount of data on the diagnostic and therapeutic handling of these patients, before they are referred to a VAC. PURPOSE: To demonstrate the disease-specific patient characteristics in a German VAC, which are required to determine diagnostic and therapeutic steps. MATERIAL AND METHODS: In a retrospective study, all patients who were treated in the VAC from April 2014 until August 2021 were identified...
September 24, 2023: Acta Radiologica
https://read.qxmd.com/read/37735892/machine-learning-models-based-on-multi-parameter-mri-radiomics-for-prediction-of-molecular-glioblastoma-a-new-study-based-on-the-2021-world-health-organization-classification
#7
JOURNAL ARTICLE
Xin Kong, Yu Mao, Yuqi Luo, Fengjun Xi, Yan Li, Jun Ma
BACKGROUND: The 2021 World Health Organization (WHO) classification considers a histological low grade glioma with specific molecular characteristics as molecular glioblastoma (mGBM). Accurate identification of mGBM will aid in risk stratification of glioma patients. PURPOSE: To explore the value of machine learning models based on magnetic resonance imaging (MRI) radiomics features in predicting mGBM. MATERIAL AND METHODS: In total, 166 patients histologically diagnosed as low-grade diffuse glioma (WHO II and III) were included in the study...
September 21, 2023: Acta Radiologica
https://read.qxmd.com/read/37735891/a-prospective-study-comparing-the-quality-of-coronary-computed-tomography-angiography-images-from-photon-counting-and-energy-integrating-detector-systems
#8
JOURNAL ARTICLE
Susann Skoog, Michael Sandborg, Lilian Henriksson, Mårten Sandstedt, Håkan Gustafsson, Anders Persson
BACKGROUND: As guidelines endorse the use of computed tomography (CT) for examining coronary artery disease (CAD), it is important to compare the advantages and disadvantages of the novel photon counting detector CT (PCD-CT) technology with the established energy integrating detector CT (EID-CT). PURPOSE: To compare the image quality of coronary computed tomography angiography (CCTA) and the Agatston scores (AS) derived from EID-CT and PCD-CT. MATERIAL AND METHODS: In this prospective observational study, 28 patients underwent clinical calcium score and CCTA scans on an EID-CT and a PCD-CT scanner...
September 21, 2023: Acta Radiologica
https://read.qxmd.com/read/37722861/reliability-of-tomographic-3d-ultrasound-in-measuring-internal-carotid-artery-plaque-volume
#9
JOURNAL ARTICLE
Adel Alzahrani, Salahaden R Sultan, Mohammed Aslam
BACKGROUND: Tomographic 3D ultrasound (t3DUS) is a promise imaging technique for quantifying carotid plaque through measuring the degree of stenosis and plaque volume. Carotid plaque volume (CPV) could add benefit in predicting the potential risk of stroke. PURPOSE: To assess the reproducibility and accuracy of t3DUS for measuring CPV within the internal carotid artery in patients undergoing carotid endarterectomy. MATERIAL AND METHODS: t3DUS was used to obtain CPV in vivo from 25 symptomatic patients prior to surgery...
September 18, 2023: Acta Radiologica
https://read.qxmd.com/read/37722801/amide-proton-transfer-weighted-imaging-of-pediatric-brainstem-glioma-and-its-predicted-value-for-h3-k27-alteration
#10
JOURNAL ARTICLE
Dan Cheng, Zhizheng Zhuo, Peng Zhang, Liying Qu, Yunyun Duan, Xiaolu Xu, Cong Xie, Xing Liu, Sven Haller, Frederik Barkhof, Liwei Zhang, Yaou Liu
BACKGROUND: Non-invasive determination of H3 K27 alteration of pediatric brainstem glioma (pedBSG) remains a clinical challenge. PURPOSE: To predict H3 K27-altered pedBSG using amide proton transfer-weighted (APTw) imaging. MATERIAL AND METHODS: This retrospective study included patients with pedBSG who underwent APTw imaging and had the H3 K27 alteration status determined by immunohistochemical staining. The presence or absence of foci of markedly increased APTw signal in the lesion was visually assessed...
September 18, 2023: Acta Radiologica
https://read.qxmd.com/read/37722764/bone-marrow-edema-at-ligament-insertion-is-an-accurate-mri-sign-of-deltoid-ligament-injury
#11
JOURNAL ARTICLE
Jiahui Tong, Hong Li, Hongyun Li, Yinghui Hua
BACKGROUND: Magnetic resonance imaging (MRI) is effective in diagnosing deltoid ligament (DL) injury but its sensitivity in chronic cases is low. Additional diagnostic signs are required to reduce the risk of a false negative diagnosis. PURPOSE: To evaluate the added diagnostic value of bone marrow edema at the ligament insertion (BMELI) of DL to the MRI assessment of chronic DL injury. MATERIAL AND METHODS: One hundred patients who consecutively came to our institution between November 2018 and December 2021 and underwent arthroscopic surgery for chronic ankle instability (CAI) were enrolled in the present study...
September 18, 2023: Acta Radiologica
https://read.qxmd.com/read/37722761/diagnostic-performance-of-two-versions-of-an-artificial-intelligence-system-in-interval-breast-cancer-detection
#12
JOURNAL ARTICLE
Levent Çelik, Davut Can Güner, Ömer Özçağlayan, Rahmi Çubuk, Mustafa Erkin Arıbal
BACKGROUND: Various versions of artificial intelligence (AI) have been used as a diagnostic tool aid in the diagnosis of breast cancer. One of the most important problems in breast screening progmrams is interval breast cancer (IBC). PURPOSE: To compare the diagnostic performance of Transpara v1.6 and v1.7 in the detection of IBC. MATERIAL AND METHODS: Reports of screening mammograms of a total 2,248,665 of women were evaluated retrospectively...
September 18, 2023: Acta Radiologica
https://read.qxmd.com/read/37700572/evaluation-of-late-gadolinium-enhancement-cardiac-mri-using-deep-learning-reconstruction
#13
JOURNAL ARTICLE
Jing Yang, Feng Wang, Zhirong Wang, Wei Zhang, Lizhi Xie, LiXin Wang
BACKGROUND: Deep learning (DL)-based methods have been used to improve the imaging quality of magnetic resonance imaging (MRI) by denoising. PURPOSE: To assess the effects of DL-based MR reconstruction (DLR) method on late gadolinium enhancement (LGE) image quality. MATERIAL AND METHODS: A total of 85 patients who underwent cardiovascular magnetic resonance (CMR) examination, including LGE imaging using conventional construction and DLR with varying levels of noise reduction (NR) levels, were included...
September 12, 2023: Acta Radiologica
https://read.qxmd.com/read/37700570/new-section-editor-breast-imaging
#14
EDITORIAL
Henrik S Thomsen
No abstract text is available yet for this article.
September 12, 2023: Acta Radiologica
https://read.qxmd.com/read/37691270/diagnostic-performance-of-gadoxetic-acid-enhanced-abbreviated-magnetic-resonance-imaging-protocol-in-small-hepatocellular-carcinoma-%C3%A2-2-cm-in-high-risk-patients
#15
JOURNAL ARTICLE
Jia-Hui Wang, Qian-Sai Qiu, San-Yuan Dong, Xiao-Shan Chen, Wen-Tao Wang, Yu-Tao Yang, Wei Sun, Sheng-Xiang Rao
BACKGROUND: Biannual Ultrasound showed insufficient sensitivity in detecting small or early-stage hepatocellular carcinoma (HCC). Abbreviated magnetic resonance imaging (A-MRI) protocols with fewer sequences demonstrated higher HCC detection sensitivity than ultrasound with acceptable cost and examination time. PURPOSE: To compare the diagnostic performance of gadoxetic acid-enhanced A-MRI with a full sequence MRI (F-MRI) protocol for small HCC (≤2 cm) in cirrhotic or hepatitis B virus-infected high-risk patients...
September 10, 2023: Acta Radiologica
https://read.qxmd.com/read/37682521/prevalence-and-influencing-factors-for-artifact-development-in-breast-mri-derived-maximum-intensity-projections
#16
JOURNAL ARTICLE
Lorenz A Kapsner, Eva L Balbach, Frederik B Laun, Lukas Baumann, Sabine Ohlmeyer, Michael Uder, Sebastian Bickelhaupt, Evelyn Wenkel
BACKGROUND: Magnetic resonance imaging (MRI) provides high diagnostic sensitivity for breast cancer. However, MRI artifacts may impede the diagnostic assessment. This is particularly important when evaluating maximum intensity projections (MIPs), such as in abbreviated MRI (AB-MRI) protocols, because high image quality is desired as a result of fewer sequences being available to compensate for problems. PURPOSE: To describe the prevalence of artifacts on dynamic contrast enhanced (DCE) MRI-derived MIPs and to investigate potentially associated attributes...
September 8, 2023: Acta Radiologica
https://read.qxmd.com/read/37674355/contrast-enhanced-mammography-versus-breast-mri-in-the-assessment-of-multifocal-and-multicentric-breast-cancer-a-retrospective-study
#17
JOURNAL ARTICLE
Mona Ahmed Fouad Hafez, Asmaa Zeinhom, Dina Abdallah Abbas Hamed, Galal Rafik Mohamed Ghaly, Sally Fouad Kamel Tadros
BACKGROUND: Breast cancer multifocality and multicentricity diagnosis influences the surgeon's choice between applying breast conservative therapy or performing mastectomy. PURPOSE: To assess the role of contrast enhanced mammography (CEM) and breast magnetic resonance imaging (MRI) in the assessment of preoperative breast cancer multifocality and multicentricity and to assess their accuracy, agreement and impact on the surgical management. MATERIAL AND METHODS: The study retrospectively included cases over a 5-year period...
September 6, 2023: Acta Radiologica
https://read.qxmd.com/read/37661639/prognostic-value-of-computed-tomography-associated-body-composition-measurement-changes-in-metastatic-colorectal-cancer-patients
#18
JOURNAL ARTICLE
Zekai Emre Sevgilioglu, Sehnaz Evrimler, Gokce Iscan, Erkan Kayikcioglu, Sevim Sureyya Sengul, Bulent Cetin
BACKGROUND: Sarcopenia is associated with poor prognosis in metastatic colorectal cancer (mCRC) patients. PURPOSE: To investigate the prognostic value of body composition measurement changes measured by computed tomography (CT) in mCRC patients. MATERIAL AND METHODS: The abdominal skeletal muscle density (SMD) and skeletal muscle (SMI) indices, as well as the visceral (VATI) and subcutaneous fat tissue (SATI) indices, were calculated by automatic segmentation method on the abdominal CT images obtained before (n = 71) and after chemotherapy (n = 52)...
September 3, 2023: Acta Radiologica
https://read.qxmd.com/read/37661630/the-value-of-multimodal-functional-magnetic-resonance-imaging-in-differentiating-p53abn-from-p53wt-endometrial-carcinoma
#19
JOURNAL ARTICLE
Tian Shifeng, Wang Yue, Zhu Wen, Chen Lihua, Wang Nan, Lin Liangjie, Liu Ailian
BACKGROUND: Endometrial carcinoma (EC) is the sixth most common cancer in women. P53 gene expression in patients with endometrial cancer can predict the efficacy and prognosis of patients with neoadjuvant therapy. PURPOSE: To explore the value of multimodal magnetic resonance imaging (MRI) in differentiating p53 abnormal (p53abn) from p53 wild-type (p53wt) EC. MATERIAL AND METHODS: Data from 47 EC patients, including 14 p53abn cases and 33 p53wt cases, were retrospectively analyzed...
September 3, 2023: Acta Radiologica
https://read.qxmd.com/read/37649280/non-contrast-computed-tomography-findings-for-identification-of-chronically-occluded-coronary-artery-bypass-grafts
#20
JOURNAL ARTICLE
Jordan H Chamberlin, Carter D Smith, Elizabeth Van Swol, Dhruw Maisuria, Dhiraj Baruah, Uwe Joseph Schoepf, Jeremy R Burt, Ismail M Kabakus
BACKGROUND: Detecting occlusions of coronary artery bypass grafts using non-contrast computed tomography (CT) series is understudied and underestimated. PURPOSE: To evaluate morphological findings for the diagnosis of chronic coronary artery bypass graft occlusion on non-contrast CT and investigate performance statistics for potential use cases. MATERIAL AND METHODS: Seventy-three patients with coronary artery bypass grafts who had CT angiography of the chest (non-contrast and arterial phases) were retrospectively included...
August 30, 2023: Acta Radiologica
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