[PDF] Top 20 Volume computed tomography dose index (CTDIvol) and size-specific dose estimate (SSDE) for tube current modulation (TCM) in CT scanning

... dose in terms of size-specific dose estimate (SSDE). This study developed a specific calculator for CT scanning using the TCM technique. Materials and Methods: The tube current was extracted ... See full document

... patient dose, use in clinical practice is CT dose index (CTDI) method (Shope et ...patient dose are debatable and the criticisms are based on two ...patient dose might ... See full document

... the CT scanner room while scanning was in ...Adult. CT scanner, CT-16cm head and 32cm body phantoms, electrometer, ionization chamber and dosimeter were used for data ... See full document

... X-ray Computed Tomography (CT) is a non-destructive imaging technique originally designed for diagnostic medicine, which was adopted for rhizosphere and soil science applications in the early ... See full document

... of computed tomography apparatus, the cone beam computed tomography (CBCT), has been ...conventional CT, it offers the advantage of low radiation dose, short time of scan, low ... See full document

... Table 4 illustrates the total of 20 patients that were used to compare estima- tions of absorbed doses from both CTDI and DEq over a period of one year. The study consisted of 9 females and 11 males with an average age ... See full document

... conformal index; CT, computed topography; DVH, dose– volume histogram; EUD, equivalent uniform dose; gEUD, general equivalent uniform dose; GETUG, Groupe d’Etude des ... See full document

... organ volume and anthropometry data in ICRP Publication ...organ dose, from which effective dose and risks of cancer incidence were ...estimate dose for any patient prior to or after a ... See full document

... by volume computed tomography (VCT) scanning, are potential manifestations of lung cancer ...complexity, volume size, and the percentage of ground-glass opacity (GGO) volume, ... See full document

... radiation volume [13,14]. As expected, CT imaging evidence of focal radiation- induced pneomonitis and fibrosis was consistently observed within the target volumes of our patients during follow-up as well ... See full document

... during CT examinations while using Rando phantom ...a dose range from 0 to 200 mGy. They measured the entrance surface dose (ESD) using four or eight film strips taped on patients’ skin and on Rando ... See full document

... and CT dosimetry ...for CT dosimetry. The CT ion chamber which was calibrated and corrections for temperature and pressure was done according to manufacturer ...in CT dosimetry surveys as ... See full document

... mass index; CI: Confidence interval; CMS: Centers for Medicare & Medicaid Services; CT: Computed tomography; CTDIvol: Volume CT dose index; GG/L: Ground ... See full document

... high dose rate during therapy and those cause by low dose rate during ...low dose rate during medical imaging as in the case of CT, two fundamental quantities, Computed ... See full document

... The SD pattern predicted significant coronary artery stenosis with good specificity (Additional file 1: Figure S1). In this study, we evaluated patients who underwent CE-CT before CAG. The best timing for ... See full document

... tumor volume (GTV) will be defined by the planning physician as all known gross disease (gross tumor volume, pulmonary [GTV-P]) and involved mediastinal and hilar nodes (GTV-N) as dem- onstrated on the ... See full document

... where x is a vector representing the unknown image, A is a sparse measurement matrix, and b is the data (raysums). Here we are using the notation and vocabulary of recent papers on CS in CT [28,29]. In particular, ... See full document

... In einer weiteren Arbeit untersuchten wir den prädiktiven Wert des CONFIRM (COronary CT Angiography EvaluatioN For Clinical Outcomes: An InteRnational Multicenter Registry) Score im Langzeit Follow-up [19]. Der ... See full document

... On a retrospective basis, clinical data of 112 patients were evaluated, who had been diagnosed with spontaneous ICH between October 2013 and October 2014. The study was approved by the Ethics Committee of Tangdu ... See full document

... Gd-based contrast agents remain the most recognized MRI contrast agent clinically. They are relatively less toxic and easily removed from the body. However, cer- tain factors such as Gd payload, tissue identification, ... See full document