Effect of Ultra High-Resolution Computed Tomography and Model-Based Iterative Reconstruction on Detectability of Simulated Submillimeter Artery

Objective To evaluate the effect of ultra high-resolution computed tomography (UHRCT) and model-based iterative reconstruction (MBIR) on the detectability of simulated submillimeter artery. Methods A small vessel phantom ranging from 0.4 to 2.0 mm in diameter and edge phantoms of low to high attenuation values were scanned by UHRCT (super-high-resolution mode and normal-resolution-mode) and conventional CT, and data were reconstructed by MBIR and filtered back projection (FBP). Vessel detectability was assessed subjectively and the effective size at which 50% of response was achieved (ES50 [mm]) was calculated. Modulation transfer function (MTF) was calculated by an edge spread function method. Results ES50 of super high-resolution mode (0.36 mm for MBIR and 0.50 mm for FBP) was significantly smaller than those of normal-resolution mode (P
Source: Journal of Computer Assisted Tomography - Category: Radiology Tags: Cardiovascular Imaging Source Type: research

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ConclusionOur study demonstrates that an AI solution can help radiologists to diagnose ICH and thus decrease the error rate. AI solution can serve as a prospective peer review tool for non-contrast head CT scans to identify ICH and thus minimize false negatives.
Source: Academic Radiology - Category: Radiology Source Type: research
CONCLUSION: Bone-anchored hearing devices can be implanted by prior imaging and using a template to identify the area of appropriate skull thickness to implant the abutment safely. PMID: 32079553 [PubMed - as supplied by publisher]
Source: Journal of Laryngology and Otology - Category: ENT & OMF Tags: J Laryngol Otol Source Type: research
ConclusionsThe single-port approach has advantages as easier surgical planning and transition for combined and multi-quadrants surgeries: faster recovery, minimal postoperative pain and need for opioids, and excellent cosmetic outcome. We suggest that combined procedures should be performed only in high volume institutions by surgeons with vast experience in robotic surgery in selected patients.ResumenIntroducciónPresentar el primer caso de cirugía multicuadrante concomitante —prostatectomía radical robótica y nefrectomía parcial robótica izquierda— realizadas con t&eac...
Source: Actas Urologicas Espanolas - Category: Urology & Nephrology Source Type: research
Conclusions: The proposed web-based deep learning approach can be very practical and accurate for spine segmentation as a diagnostic method. PMID: 32082701 [PubMed]
Source: Healthcare Informatics Research - Category: Information Technology Tags: Healthc Inform Res Source Type: research
ConclusionsCT angiography imaging findings have the potential to identify patients with head and neck cancer at higher risk of bleeding.
Source: European Journal of Radiology - Category: Radiology Source Type: research
ConclusionReliable iodine quantification can be achieved using dual-source CT, but the result can be affected by patient size and dose rate. In large patients, biases may occur due to the beam-hardening and the photon-starvation effects, in which case higher dose rate and higher kVp are recommended to minimize these effects.
Source: Academic Radiology - Category: Radiology Source Type: research
ConclusionHigh-quality CT and CT angiography can be achieved in ECMO patients of different ages and clinical issues considering the type of ECMO circulation, ECMO cannulation sites, preferred contrast phase and anatomy of interest. CT diagnoses affect the treatment of the patient.
Source: Academic Radiology - Category: Radiology Source Type: research
ConclusionWith the guidance of navigation integrated with PET, CNB is a feasible and accurate diagnostic modality, which is also an alternative to open biopsy in patients with suspected primary or recurrent malignancies in deep regions of the head and neck on PET/CT.
Source: Journal of Cranio Maxillofacial Surgery - Category: ENT & OMF Source Type: research
Authors: Regnier P, De Luca V, Brunelle S, Sfumato P, Walz J, Rybikowski S, Maubon T, Branger N, Fakhfakh S, Durand M, Gravis G, Pignot G Abstract BACKGROUND: Sarcopenia is suspected to influence the complication rates in patients undergoing radical cystectomy (RC). The aim of our study was to assess variations in sarcopenia in patients scheduled for neoadjuvant cisplatin-based chemotherapy (NAC) and RC for muscle invasive bladder cancer (MIBC) and to explore the impact of sarcopenia on complications linked to NAC or surgery. METHODS: Between 2012 and 2017, 82 consecutive patients who underwent NAC and RC for c...
Source: Minerva Urologica e Nefrologica - Category: Urology & Nephrology Tags: Minerva Urol Nefrol Source Type: research
ConclusionACP pneumatization can be recognized in all ages including pediatric age. CT scan is recommended before anterior clinoidectomy to assess the presence and extent of pneumatization to avoid CSF leak complications. When recognized, reconstruction must be attempted to obliterate the connection between the intracranial space and nasal sinuses. If CSF leak recognized post-operatively, repair is feasible through open or endoscopic transnasal approach.
Source: Interdisciplinary Neurosurgery - Category: Neurosurgery Source Type: research
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