filtered by: All Types » All Clinical Topics » Low Dose CT

Organ Dose and Attributable Cancer Risk in Lung Cancer Screening with Low-Dose CT.

posted by Hatem Alkadhi, M.D., M.P.H., E.B.C.R. | Mar 22, 2017
Hatem Alkadhi, M.D., M.P.H., E.B.C.R.

Purpose: Lung cancer screening with CT has been recently recommended for decreasing lung cancer mortality. The radiation dose of CT, however, must be kept as low as reasonably achievable for reducing potential stochastic risks from ionizing radiation. The purpose of this study was to calculate individual patients’ lung doses and … Read more

Case: Ultra-low Dose and Ultra-fast Scan in a Patient with Dyspnea

posted by dsct.com | Jul 8, 2016
dsct.com

In this case, the patient suffered from dyspnea and could not hold his breath during the scan. A scan in Turbo Flash mode was performed in free breathing and completed in a total scan time of 0.42 s. Read more

CT of acute pulmonary embolism: state-of-the-art

posted by U. Joseph Schoepf, M.D. | Aug 18, 2015
U. Joseph Schoepf, M.D.

This review will discuss the technical improvements for imaging peripheral pulmonary arteries, the methods of assessing pulmonary embolism (PE) severity based on CT findings, a multidetector CT technique for PE detection, and more. Read more

Ultralow-Radiation-Dose Chest CT: Accuracy for Lung Densitometry and Emphysema Detection

posted by U. Joseph Schoepf, M.D. | Jul 21, 2015
U. Joseph Schoepf, M.D.

The purpose of this study was to determine whether ultralow-radiation-dose chest CT can be used for quantification of lung density and for emphysema detection in participants undergoing lung cancer screening. Read more

Objective and subjective image quality of primary and recurrent squamous cell carcinoma on head and neck low-tube-voltage 80-kVp CT

posted by Julian L. Wichmann, M.D. | Jun 8, 2015
Julian L. Wichmann, M.D.

To investigate low-tube-voltage 80-kVp computed tomography (CT) of head and neck primary and recurrent squamous cell carcinoma (SCC) regarding objective and subjective image quality. Read more

Case: Low dose cardiac scan with Definition Force

posted by U. Joseph Schoepf, M.D. | Mar 4, 2015
U. Joseph Schoepf, M.D.
  • Fig 1 Low dose cardiac scan with Definition Force
  • Fig 2 Low dose cardiac scan with Definition Force
  • Fig 3 Low dose cardiac scan with Definition Force
  • Fig 4 Low dose cardiac scan with Definition Force

We present the case of a patient examined with third-generation dual-source turbo flash coronary CT angiography with simultaneous application of multiple techniques to reduce radiation dose resulting in an effective dose of 0.37 mSv. Read more

Preoperative assessment of the aortic arch in children younger than 1 year with congenital heart disease: utility of low-dose high-pitch DSCT. A single-centre, retrospective analysis of 62 cases

posted by Stephan Achenbach, M.D. | Dec 31, 2014
Stephan Achenbach, M.D.

DSCT is a fast and appropriate imaging modality in the preoperative assessment of the aortic arch for surgical planning in CHD. Read more

CT dose reduction using prospectively triggered or fast-pitch spiral technique employed in cardiothoracic imaging (the CT dose study)

posted by Sandra Simon Halliburton, Ph.D. | Dec 18, 2014
Sandra Simon Halliburton, Ph.D.

Use of advanced scanners facilitating prospectively triggered or high-pitch spiral scan modes results in marked dose reduction across a variety of cardiovascular studies, with no compromise in image quality. Read more

Accuracy of prospectively ECG-triggered very low-dose coronary dual-source CT angiography using iterative reconstruction for the detection of coronary artery stenosis: comparison with invasive catheterization

posted by Michael M. Lell, M.D. | Dec 3, 2014
Michael M. Lell, M.D.

Raw data-based IR significantly improves image quality in very low-dose prospectively ECG-triggered coronary dual-source CTA when compared with standard reconstruction using FBP. Read more

Ultralow-Dose Chest CT for Pulmonary Nodule Detection: First Performance Evaluation of Single Energy Scanning With Spectral Shaping

posted by Sebastian Leschka, M.D. | Jul 1, 2014
Sebastian Leschka, M.D.

The purpose of this study was to evaluate the image quality and sensitivity of ultralow radiation dose single-energy CT with tin filtration for spectral shaping and iterative reconstructions for the detection of pulmonary nodules in a phantom setting. Read more



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