Zobrazeno 1 - 10
of 145
pro vyhledávání: '"H, Amols"'
Publikováno v:
Medical physics. 32(2)
Accurate knowledge of gantry angle is essential in megavoltage cone beam imaging (MVCBI) with an electronic portal imager. We present a method for determining the gantry angle by detecting multileaf collimator (MLC) leaf positions in projection image
Publikováno v:
Cardiovascular radiation medicine. 1(1)
Irradiation of the arterial wall with beta particles has been shown to be effective in inhibiting neointimal hyperplasia following percutaneous transluminal coronary angioplasty (PTCA). In this study, we describe the use of 188W/188Re generators to o
Autor:
R, Nath, H, Amols, C, Coffey, D, Duggan, S, Jani, Z, Li, M, Schell, C, Soares, J, Whiting, P E, Cole, I, Crocker, R, Schwartz
Publikováno v:
Medical physics. 26(2)
Recent preclinical and clinical studies indicate that irradiation using ionizing radiation in the dose range of 15 to 30 Gy may reduce the occurrence of restenosis in patients who have undergone an angioplasty. Several delivery systems of intravascul
Publikováno v:
Medical Physics. 33:2000-2001
Purpose: To quantify the geometric accuracy of the On Board Imager in both the kV radiographic and cone beam imaging modes. Method and Materials: The Winston‐Lutz test was performed to localize a 5mm tungsten sphere placed within +/− 0.25 mm of t
Autor:
J CHANG, S THAKUR, G PERERA, A KOWALSKI, W HUANG, S KARIMI, M HUNT, J KOUTCHER, S LEIBEL, H AMOLS
Publikováno v:
International Journal of Radiation OncologyBiologyPhysics. 60:S223-S224
Publikováno v:
Cancer. 73(6)
Ionizing radiation is a lung carcinogen in a variety of settings, including after breast cancer radiation therapy. The authors explored whether cigarette smoking and breast cancer radiation therapy have a multiplicative effect on the risk of subseque
Autor:
G Li, Yoshiya Yamada, A Ballangrud, H Kang, A Kirov, D Lovelock, J Mechalakos, H Amols, L Kuo
Publikováno v:
Medical Physics. 38:3711-3711
Purpose: To develop an image‐guided procedure for online head‐rotation correction and real‐time motion monitoring with threshold gating for clinical frameless stereotactic radiosurgery(SRS) using video‐based optical 3D surfaceimaging (AlignRT
Publikováno v:
Medical Physics. 35:2831-2831
Purpose: to quantify intra‐fractional motion of bony targets with respect to the immobilization cradle during extra‐cranial SRStreatments.Method and Materials: Pre and post treatment cone beam scans were acquired of 64 patients undergoing either
Publikováno v:
Medical Physics. 33:2280-2280
Purpose: To evaluate artifacts caused by treatment couch attenuation on 3D image reconstruction for a new kV on‐board‐imager (OBI) and cone beam CT(CBCT) system and to develop an algorithm that filters couch effects from two‐dimensional radiogr
Publikováno v:
Journal of Nuclear Cardiology. 4:S118