Image noise and radiation dose using an automatic tube current modulation technique at 64-detector computed tomography: Effect of off-center patient position, bowtie filter type, and scan projection radiograph

Journal of Computer Assisted Tomography

Volumn 33, Issue 6, 2009, Pages 973-977

  Funama, Yoshinori ^a   Taguchi, Katsuyuki ^d   Awai, Kazuo ^b   Sakabe, Daisuke ^d   Shimamura, Masamichi ^a   Yamashita, Yasuyuki ^c  

^a KUMAMOTO UNIVERSITY   (Japan)

^b KUMAMOTO UNIVERSITY   (Japan)

^c KUMAMOTO UNIVERSITY   (Japan)

^d JOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE   (United States)

Author keywords

ATCM technique; Bowtie filter; Image noise; Radiation dose; Scan projection radiograph

Indexed keywords

BANDPASS FILTERS; COMPUTERIZED TOMOGRAPHY; DOSIMETRY; MODULATION; RADIOGRAPHY;

ANTEROPOSTERIOR; ATCM TECHNIQUE; BOWTIE FILTERS; COMPUTED TOMOGRAPHIC; IMAGE NOISE; MODULATION TECHNIQUES; PHANTOMS; SCAN PROJECTION RADIOGRAPH; TUBE CURRENT MODULATIONS; TUBE CURRENTS;

PHANTOMS;

ARTICLE; FILTER; MODULATION; MULTIDETECTOR COMPUTED TOMOGRAPHY; PATIENT POSITIONING; PHANTOM; PRIORITY JOURNAL; RADIATION DOSE; SIGNAL NOISE RATIO; X RAY FILM; ADULT; ARTIFACT; BODY POSTURE; COMPUTER ASSISTED TOMOGRAPHY; FILTRATION; HUMAN; IMAGE QUALITY; INSTRUMENTATION; MALE; METHODOLOGY; RADIATION PROTECTION;

ADULT; ARTIFACTS; FILTRATION; HUMANS; MALE; PHANTOMS, IMAGING; POSTURE; RADIATION DOSAGE; RADIATION PROTECTION; TOMOGRAPHY, X-RAY COMPUTED;

EID: 73949102305     PISSN: 03638715     EISSN: None     Source Type: Journal    
DOI: 10.1097/RCT.0b013e31819d6f6f     Document Type: Article

References (16)

1. Greess H, Wolf H, Baum U, et al. Dose reduction in computed tomography by attenuation-based on-line modulation of tube current: evaluation of six anatomical regions. Eur Radiol. 2000;10:391-394.
2. Tack D, De Maertelaer V, Petit W, et al. Multi-detector row CT pulmonary angiography: comparison of standard-dose and simulated low-dose techniques. Radiology. 2005;236:318-325.
3. Mulkens TH, Bellinck P, Baeyaert M, et al. Use of an automatic exposure control mechanism for dose optimization in multi-detector row CT examinations: clinical evaluation. Radiology. 2005;237:213-223.
4. McCollough CH, Bruesewitz MR, Kofler JM Jr. CT dose reduction and dose management tools: overview of available options. Radiographics. 2006;26:503-512.
5. Schindera ST, Nelson RC, Toth TL, et al. Effect of patient size on radiation dose for abdominal MDCT with automatic tube current modulation: phantom study. AJR Am J Roentgenol. 2008;190:W100-W105.
6. Kalra MK, Maher MM, Toth TL, et al. Techniques and applications of automatic tube current modulation for CT. Radiology. 2004; 233:649-657.
7. Kalra MK, Maher MM, Kamath RS, et al. Sixteen-detector row CT of abdomen and pelvis: study for optimization of z-axis modulation technique performed in 153 patients. Radiology. 2004;233:241-249.
8. Toth T, Ge Z, Daly MP. The influence of patient centering on CT dose and image noise. Med Phys. 2007;34:3093-3101. (Pubitemid 47019829)
9. Siegel MJ, Schmidt B, Bradley D, et al. Radiation dose and image quality in pediatric CT: effect of technical factors and phantom size and shape. Radiology. 2004;233:515-522.
10. Muramatsu Y, Tsuda Y, Nakamura Y, et al. The development and use of a chest phantom for optimizing scanning techniques on a variety of low-dose helical computed tomography devices. J Comput Assist Tomogr. 2003;27:364-374.
11. Brisse HJ, Madec L, Gaboriaud G, et al. Automatic exposure control in multichannel CT with tube current modulation to achieve a constant level of image noise: experimental assessment on pediatric phantoms. Med Phys. 2007;34:3018-3033.
12. Campbell J, Kalra MK, Rizzo S, et al. Scanning beyond anatomic limits of the thorax in chest CT: findings, radiation dose, and automatic tube current modulation. AJR Am J Roentgenol. 2005;185:1525-1530.
13. Rizzo S, Kalra M, Schmidt B, et al. Comparison of angular and combined automatic tube current modulation techniques with constant tube current CT of the abdomen and pelvis. AJR Am J Roentgenol. 2006;186:673-679.
14. Tsapaki V, Kottou S, Papadimitriou D. Application of European Commission reference dose levels in CTexaminations in Crete, Greece. Br J Radiol. 2001;74:836-840.
15. McNitt-Gray MF. AAPM/RSNA Physics Tutorial for Residents: topics in CT. Radiation dose in CT. Radiographics. 2002;22:1541-1553.
16. Harpen MD. A computer simulation of wavelet noise reduction in computed tomography. Med Phys. 1999;26:1600-1606.