(974/1062),respectively.Contrast—enhancedPET/CThadbestsensitivity,specificitylthoughpatient-basedanalysisshowedsignificantdifferencebetweenontrast—enhancedPEnon—enhancedPET/CT0.286),thespecificityaccuracytwomethodsweresignificantlydifferentlesion—basedanalysis(p=0.043eywoterinecervicalcancer,odalstaging,FDntrast...
Segmentation of prostate in medical imagingdata (e.g., CT, MRI, TRUS) is often considered as a crit ical yet challenging task for radiotherapy treatment. It is relatively easier to segment prostate from MR images than from CT images, due to better soft tissue contrast of the MR images. Fo...
Reconstruction algorithms based on machine deep learning are increasingly being implemented in routine clinical practice (1-8). Deep learning reconstruction (DLR) has been shown to reduce image noise and improve the contrast-to-...
Similarly, another 6-month follow-up study also demonstrated similar results whereby 40 of 114 participants with severe COVID-19 pneumonia showed fibrotic-like symptoms, while the remaining 74 participants showed either complete radiological resolution, residual GGOs, or interstitial thickening. Li reporte...
et al. Nodal status of malignant lymphoma in pelvic and retroperitoneal lymphatic pathways: Comparison of integrated PET/CT with or without contrast enhancement. Eur. J. Radiol. 67(3), 508–513 (2008). Article PubMed Google Scholar Salle, G. et al. Rituximab maintenance for 2 years in ...
which reduced to 44% at a median follow up of 3 months. In contrast, radiological changes suggestive of fibrosis (reticulation, interlobular septal thickening, traction bronchiectasis or honeycombing) appeared more chronic, found in ...
Pancreatic Cancer Detection on CT Scans with Deep Learning: A Nationwide Population-based Study 胰腺癌在CT扫描中通过深度学习检测:一项全国性的基于人群的研究 01 文献速递介绍 胰腺癌(PC)的五年生存率是所有癌症中最低的,预计到2030年将成为美国癌症死亡的第二大原因。由于一旦肿瘤体积超过2厘米,预后会急剧恶化...
Retrospectively collected contrast-enhanced CT studies in patients diagnosed with pancreatic cancer between January 2006 and July 2018 were compared with CT studies of individuals with a normal pancreas (control group) obtained between January 2004 and December 2019. An end-to-end tool comprising a se...
Thirty one consecutive patients strongly suspected of severe Middle Cerebral Artery AIS presenting less than 6 h after onset of symptoms or with unknown time of onset of symptoms underwent a standardized CT protocol in spectral mode including Non Contrast CT, mCTA, and Perfusion CT (CTP) on a ...
(difference 6%, 95% CI: -6% to 17%). Cumulative probability of distant and locoregional recurrence at 3 years for ctDNA-positive pts treated with CT were 36% and 11% respectively; for ctDNA-negative pts without adjuvant CT were 12% and 1%. Of the 15 ctDNA-negative pts who recurred,...