An algorithm for automated modulation transfer function measurement using an edge of a PMMA phantom: Impact of field of view on spatial resolution of CT images.

CONCLUSION: An automated MTF method was successfully developed using an edge phantom, the PMMA phantom. The method is easy to implement in a clinical environment and is not influenced by user experience. PMID: 30338920 [PubMed - as supplied by publisher]
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research

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ConclusionsTFA was determined to be a theranostic agent for chemical ablation of solid tissue. Ablation was both efficacious and imageable in ex vivo healthy tissue, even at low concentrations or with high temporal resolution.
Source: Journal of Vascular and Interventional Radiology - Category: Radiology Source Type: research
Publication date: Available online 16 September 2019Source: European Journal of RadiologyAuthor(s): Haijie Li, Lu Yin, Ni He, Peng Han, Yueqiang Zhu, Yue Ma, Aidi Liu, Hong Lu, Zhipeng Gao, Peifang Liu, Yaopan Wu, Zhaoxiang YeAbstractPurposeTo compare the comfort levels of cone beam breast computed tomography (CBBCT) and digital mammography.Materials and MethodsOn 409 patients, CBBCT was performed within 1 week after conventional mammography. Patients evaluated their comfort by using an 11-point numerical rating scale (NRS-11) after completing the two examinations. The lower the score was, the more comfortable the examinat...
Source: European Journal of Radiology - Category: Radiology Source Type: research
Publication date: Available online 16 September 2019Source: Academic RadiologyAuthor(s): Mohammad Hadi Bagheri, Holger Roth, William Kovacs, Jianhua Yao, Faraz Farhadi, Xiaobai Li, Ronald M. SummersPurposeAccurate pancreas segmentation has application in surgical planning, assessment of diabetes, and detection and analysis of pancreatic tumors. Factors that affect pancreas segmentation accuracy have not been previously reported. The purpose of this study is to identify technical and clinical factors that adversely affect the accuracy of pancreas segmentation on CT.Method and MaterialsIn this IRB and HIPAA compliant study, ...
Source: Academic Radiology - Category: Radiology Source Type: research
Publication date: Available online 16 September 2019Source: Academic RadiologyAuthor(s): Morikatsu Yoshida, Takeshi Nakaura, Takada Sentaro, Shota Tanoue, Hatsuki Inada, Daisuke Utsunomiya, Naritsugu Sakaino, Kazunori Harada, Yasuyuki YamashitaRationale and ObjectivesTo compare the objective and subjective image qualities between single-energy computed tomography (CT) at 70 kVp and virtual monoenergetic imaging (VMI) of dual-source dual-energy CT for CT angiography with 180 mgI/kg.Materials and MethodsTotal 63 patients scanned with 180 mgI/kg were randomly divided into two groups: Group A (32 patients) underwent CT angiogr...
Source: Academic Radiology - Category: Radiology Source Type: research
Conclusion: The new OBQ11 satisfies the measurement criteria defined by the Rasch model. However, further studies of additional samples are needed to validate its generic properties. Significance: The purpose of the OBQ11 is to measure occupational balance of individuals or groups, and to identify aspects of occupational balance in need of improvement. Our observations suggest that the OBQ11 is a valid and promising complement to other instruments. PMID: 31524026 [PubMed - as supplied by publisher]
Source: Scandinavian Journal of Occupational Therapy - Category: Occupational Health Tags: Scand J Occup Ther Source Type: research
ConclusionsPET/CT was useful for early detection of EPCs. The use of PET/CT for the early detection and treatment of EPCs with no symptoms can improve treatment outcomes.
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
Publication date: Available online 16 September 2019Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral RadiologyAuthor(s): Husniye Demirturk Kocasarac, Emine S. Kursun-Cakmak, Gulbahar Ustaoglu, Seval Bayrak, Kaan Orhan, Marcel NoujeimAbstractObjectivesQuantitatively compare the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) in T1WI and T2WI sequences in 3 T magnetic resonance imaging (MRI) using zirconium, titanium (grades 4 and 5), and titanium-zirconium alloy implants to evaluate the effect of implant type and imaging sequence.MethodsMRI was acquired using a 3.0 Tesla magnet with a 16-channel he...
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
ConclusionsSignificant dose reduction from the reference dose can allow adequate detection and measurements of the IAC.
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
Canon Medical Systems said the majority of its CT scanners and software have...Read more on AuntMinnie.comRelated Reading: Canon installs 3T MRI scanner in Colo. Canon makes 1st Alphenix Core+ install in Fla. Canon launches Encore Orian MR upgrade program Canon delivers 1st Alphenix 4D CT to W.Va. hospital Canon gets FDA nod for AI-powered CT reconstruction
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
Conclusions Patients administered IMR have better breast symmetry and greater satisfaction with breast appearance compared with those treated by IR; however, IMR has unique complications, including pectoralis major disconnection syndrome.
Source: Annals of Plastic Surgery - Category: Cosmetic Surgery Tags: Breast Surgery Source Type: research
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