The use of 100kVp tube voltage, accompanied by the use of the additional tin filter (Sn100kVp), may be possible for patients with smaller body habitus, allowing for further reductions in effective dose and improvements to image quality. ... Subjective image quality of CTUs obtained using tin-filtration and CTUs obtained without tin-filtration ...

age quality and diagnostic performance [10, 12]. A potential benefit of lowering tube volt-age is better image contrast of radiopaque structures, such as calcium stones [10]. A newer method for optimizing CT ra-diation dose is spectral shaping of the en-ergy spectrum. In this technique, a tin filter placed in front of the scanner x-ray source

In this study, we attempted to assess the image quality of VNC images acquired with a second-generation, dual-source CT scanner with tube potentials of 140 and 100 kV and an additional tin filter. VNC images could be generated in all patients with a complete inclusion of the relevant abdominal organs.

This study assessed the impact of a tin filter on the image quality of ULD chest scans according to the kVp available on each of the three CT systems. We found …

tube assembly, one can add further permanent filters, e.g., as part of the beam-limiting device, such as in the imaging chain of the SOMATOM Force (additional 0.3 mm thick titanium filter). with additional beam hardening filter with base tube filtration 5 15 25 35 45 55 65 75 85 95 105 115 Intensity Intensity Energy / keV Energy / keV 4

Purpose: To evaluate the possibility of lowering radiation dose from a localizer radiograph (LR) using a tin spectral shaping filter and to investigate the effect of this adaptation on the radiation dose and image quality of subsequent computed tomography (CT) examination. Methods: The study utilized a set of semianthropomorphic abdomen phantoms, …

Tin filter compared to low kV protocols - optimizing sinonasal imaging in computed tomography | PLOS ONE. Open Access. Peer-reviewed. Research Article. Tin filter compared to low kV protocols - …

This study assessed the impact of a tin filter on the image quality of ULD chest scans according to the kVp available on each of the three CT systems. We found that for SFCT-1 and DSCT, where the tin filter can be used for two tube voltages, using the tin filter reduced image noise and improved the detectability of simulated chest lesions ...

An additional tin filter (thickness = 0.4 mm) could be enabled for any of the four acquisition modes. We recently reported 30 using tin filter, ... Since the image quality for the temporal bone images was only qualitatively assessed in two patients, no formal statistical analysis was performed on this cohort. RESULTS.

The Tin Filter cuts out lower energies to reduce dose and optimize image quality at the interface between soft tissue and air. This has direct benefits in lung and colon imaging, for example. Clinical experience also shows …

The tin filter protocols were performed without current or voltage modulation because they were based on thoracic presets and were therefore not optimized for midfacial or dental imaging. To assess the direct influence of the tin filter on image quality, the CDTI of protocol 7 was adapted to protocol 2 (tin filter).

An anthropomorphic phantom with insertions of aluminum and titanium rods was scanned using the standard dose head (SDH) and high-quality head (HQH) CBCT protocols with no tin filters as well as 0. ...

CT with tin filtration resulted in 28% and 66% reduction in CTDIvol compared with CT performed with routine low-dose and standard-dose protocols (p < 0.05). According-ly, it …

The purpose of this study was to assess the impact of a tin filter on the image quality of ultra-low dose (ULD) chest computed tomography (CT) on three different CT systems. An image quality phantom was scanned on three CT systems including two split-filter dual-energy CT (SFCT-1 and SFCT-2) scanners and one dual-source CT scanner …

Computed tomography (CT) scanners have the ability to improve image quality and reduce the radiation dose to patients during CT scans through the addition of a spectral shaping filter called a tin ...

Tin filtration in CT is a separate technique that pre-filters X-ray beams from the CT tube by absorbing low-energy photons. Spectrally shaping the x-ray beam removes photons not normally contributing to image generation. This simultaneously leads to reduction of the radiation dose and increase in mean photon energy.

CT with tin filtration resulted in 28% and 66% reduction in CTDI vol compared with CT performed with routine low-dose and standard-dose protocols ( p < 0.05). Accordingly, it also led to 24% and 55% …

Katsuhiro Ichikawa, Yusuke Morioka, Add to Mendeley. https://doi/10.1016/j.ejmp.2022.05.006 Get rights and content. Highlights. •. Dose …

The cancer risk associated with high amounts of radiation dose during a computed tomography (CT) scan is a serious concern [1]. Accordingly, CT vendors are constantly developing tools and methods for reducing the dose required for CT acquisition while mitigating its influence on image quality. The additional built-in tin filter (TF) is one …

This study aims streak artifacts reduction in cone-beam computed tomography (CBCT) by mounting tin filters at the Trilogy system. An anthropomorphic phantom with insertions of aluminum and titanium rods was scanned using the standard dose head (SDH) and high-quality head (HQH) CBCT protocols with no tin filters as …

The qualitative image quality assessment scores given by both readers were significantly higher for the tin filter groups than for the routine-dose groups (group A vs. group C, P=0.03; group B vs. group D, P=0.188; Table 3).

The pieces work together to give you high image quality at fast scan speeds while keeping dose low – invaluable for your daily work. ... Tin Filter improves the spectrum for dedicated CT applications where medium energy photons are not of interest – in particular, non-enhanced examinations such as lung, sinus, or bone imaging. ...

When a tin-filter is used, the low-energy spectrum is absorbed and the X-ray quality is improved. Therefore, the exposure dose decreases. Therefore, we assume that if the exposure dose is measured, it will increase in the following order: tin-filter image with a low-dose protocol based on high pitch, tin-filter image with a low-dose protocol ...

The use of TF increases the X-ray beam quality and improves the image quality characteristics in phantom images, thus appearing as a promising tool for reducing dose and/or improving the image quality of ULD protocols. ... The purpose of this study was to assess the impact of tin filter (TF) on X-ray beam quality, image quality and radiation ...

In terms of metal artefact reduction, tin filtration combined with iMAR showed the lowest CT number reduction (116.62±103.48 HU) and metal diameter blurring (0.85±0.30) among the protocols. The effective radiation dose in the tin filter groups was 73.2% lower than that in the routine-dose groups. The complication rate and diagnostic ...

The Tin Filter cuts out lower energies to reduce dose and optimize image quality at the interface between soft tissue and air. This has direct benefits in lung and colon imaging, for example. Clinical experience also shows that Tin Filter technology reduces beam hardening artifacts and improves image quality in bony structures, making it also ...

Accordingly, it also led to 24% and 55% reduction in SSDE compared with the low-dose and standard protocols (p < 0.05). Subjective image quality and signal-to-noise ratio were similar between the tin filtration and the routine low-dose groups (p > 0.05). The objective image noise was similar in the three groups (p > 0.05).

DOI: 10.1016/j.acra.2013.01.010 Corpus ID: 45565634; Tin-filter enhanced dual-energy-CT: image quality and accuracy of CT numbers in virtual noncontrast imaging. @article{Kaufmann2013TinfilterED, title={Tin-filter enhanced dual-energy-CT: image quality and accuracy of CT numbers in virtual noncontrast imaging.}, author={Sascha …

The spectral shaping technique, which involves adding a tin filter (TF) on the scanner x-ray tube, is a powerful method for reducing radiation dose. TF minimizes the bulk of lower-energy photons, which are less relevant to image quality but increase the radiation exposure of patients [22,23]. In addition, TF reduces the effect of beam hardening ...

First published: 14 November 2023. https://doi/10.1002/mp.16836. Sections. PDF. Tools. Share. Abstract. Background. Studies of tin spectral filtration have demonstrated potential in reducing radiation dose while …