In vivo cancer diagnosis with optical spectroscopy and acoustically induced blood stasis using a murine MCa35 model.

Abstract:

:Ultrasound-induced blood stasis has been observed for more than 30 years. Most of the literature has been focused on the health risks associated with this phenomenon and methods employed to prevent stasis from occurring during ultrasound imaging. To date, experimental observations have been either in vitro or invasive. The current work demonstrates ultrasound-induced blood stasis in murine normal leg muscle versus tumor-bearing legs, observed through noninvasive measurements of optical spectroscopy, and discusses possible diagnostic uses for this previously undesirable effect of ultrasound. We demonstrate that, using optical spectroscopy, effects of ultrasound can be used to differentiate tumor from normal leg muscle tissue in mice. Finally, we propose a novel diagnostic algorithm that quantitatively differentiates tumor from nontumor with maximum specificity 0.83, maximum sensitivity 0.79, and area under receiver-operating-characteristics curve 0.90.

journal_name

Med Phys

journal_title

Medical physics

authors

Winey BA,Misic V,Liao L,Parker K,Fenton BM,Yu Y

doi

10.1118/1.2198196

subject

Has Abstract

pub_date

2006-06-01 00:00:00

pages

1623-33

issue

6

eissn

0094-2405

issn

2473-4209

journal_volume

33

pub_type

杂志文章
  • Effects on image quality of a 2D antiscatter grid in x-ray digital breast tomosynthesis: Initial experience using the dual modality (x-ray and molecular) breast tomosynthesis scanner.

    abstract:PURPOSE:Radiation scattered from the breast in digital breast tomosynthesis (DBT) causes image degradation, including loss of contrast between cancerous and background tissue. Unlike in 2-dimensional (2D) mammography, an antiscatter grid cannot readily be used in DBT because changing alignment between the tube and dete...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.4943632

    authors: Patel T,Peppard H,Williams MB

    更新日期:2016-04-01 00:00:00

  • Automated segmentation of a motion mask to preserve sliding motion in deformable registration of thoracic CT.

    abstract:PURPOSE:Deformable registration generally relies on the assumption that the sought spatial transformation is smooth. Yet, breathing motion involves sliding of the lung with respect to the chest wall, causing a discontinuity in the motion field, and the smoothness assumption can lead to poor matching accuracy. In respon...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.3679009

    authors: Vandemeulebroucke J,Bernard O,Rit S,Kybic J,Clarysse P,Sarrut D

    更新日期:2012-02-01 00:00:00

  • Evaluation of video gray-scale display.

    abstract::Setting up and maintaining video display monitors properly will help to reduce display variation and improve overall presentation of the radiological image. Display monitor gray-scale characteristics were examined using the SMPTE test pattern. This test pattern may be used as a standard for adjusting brightness and co...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.596846

    authors: Nawfel RD,Chan KH,Wagenaar DJ,Judy PF

    更新日期:1992-05-01 00:00:00

  • Detecting electron beam energy shifts with a commercially available energy monitor.

    abstract::Routine electron beam quality assurance requires an accurate, yet practical, method of energy characterization. Subtle shifts in beam energy may be produced by the linac bending magnet assembly, and the sensitivity of a commercially available electron beam energy-monitoring device for monitoring these small energy dri...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.599033

    authors: Evans MD,Moftah BA,Olivares M,Podgorsak EB

    更新日期:2000-07-01 00:00:00

  • A statistically tailored neural network approach to tomographic image reconstruction.

    abstract::In previous work it has been shown that a standard backpropagation neural network can be trained to reconstruct sections of single photon emission computed tomography (SPECT) images based on the planar image projections as inputs. In this study, it is demonstrated that an artificial neural network (ANN) trained on a s...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.597586

    authors: Kerr JP,Bartlett EB

    更新日期:1995-05-01 00:00:00

  • Dosimetric problems at low monitor unit settings for scanned and scattering foil electron beams.

    abstract::Electron beam dosimetry at low monitor unit (MU) settings is important for dosimetric applications. Dose linearity, beam flatness, and beam energies were studied at low MU settings with various dose rates for different types of linear accelerators. It is observed that for the scattering foil units, the dose/MU is a sm...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.597328

    authors: Das IJ,Harrington JC,Akber SF,Tomer AF,Murray JC,Cheng CW

    更新日期:1994-06-01 00:00:00

  • Controlled mold geometry for surgical deficit treatment planning.

    abstract::The relatively precise placement of brachytherapy sources afforded by stereotactic frames for brain implants is not generally achievable for other sites, which lack the fixed geometry of the cranium and its contents. An exception is a source-containing rigid mold that delivers brachytherapy when inserted securely in a...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.597454

    authors: Anderson LL,Zlotolow IM,McCormick B,Harrison LB

    更新日期:1995-03-01 00:00:00

  • State-of-the-art in two-dimensional ultrasonic transducer array technology.

    abstract::Attention is given to means of sensing ultrasonic energy distributions over an area. Under the restraints appropiate to real-time imaging of deep body organs, piezoelectric arrays offer the most promising method. Adaptation of integrated circuit techniques to array assembly permits very large arrays of small elements ...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.594247

    authors: Maginness MG,Plummer JD,Beaver WL,Meindl JD

    更新日期:1976-09-01 00:00:00

  • SU-D-211-06: The Effect of Motion in RapidArc Lung SBRT Delivery.

    abstract:PURPOSE:RapidArc is routinely used for stereotactic radiotherapy for lung cancer. While treatment dose is optimized and calculated on a static CT image, the motion of the target in conjunction with the motion of the MLC may Result in a delivered dose deviating from the planed dose. In this study, we investigate the dos...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.4734660

    authors: Zou J,Yin L,Shen J,Corradetti M,Kirk M,Rengan R,Teo BK

    更新日期:2012-06-01 00:00:00

  • The line spread function and modulation transfer function of a computed tomographic scanner.

    abstract::A simple method to measure the line spread function of computed tomographic scanners has been developed. The line spread function of the EMI-Scanner was measured and the MTF of the scanner was calculated. The reproducibility of the method indicated this technique could be utilized to compare the spatial resolution of ...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.594283

    authors: Judy PF

    更新日期:1976-07-01 00:00:00

  • Dosimetric impact of motion in free-breathing and gated lung radiotherapy: a 4D Monte Carlo study of intrafraction and interfraction effects.

    abstract::The purpose of this study was to investigate if interfraction and intrafraction motion in free-breathing and gated lung IMRT can lead to systematic dose differences between 3DCT and 4DCT. Dosimetric effects were studied considering the breathing pattern of three patients monitored during the course of their treatment ...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.2821704

    authors: Seco J,Sharp GC,Wu Z,Gierga D,Buettner F,Paganetti H

    更新日期:2008-01-01 00:00:00

  • Comments on "Sampling techniques for the evaluation of treatment plans" [Med. Phys. 20, 151-161 (1993)].

    abstract::We believe that, for the purpose of evaluation and optimization of treatment plans, quasirandom sampling is superior to grid sampling and should be the method of choice. We believe it to be on average more efficient than grid sampling (i.e., more accurate for any given number of dose estimates) and, even more importan...

    journal_title:Medical physics

    pub_type: 评论,信件

    doi:10.1118/1.597103

    authors: Niemierko A,Goitein M

    更新日期:1993-09-01 00:00:00

  • Medical applications of shortwave FM radar: remote monitoring of cardiac and respiratory motion.

    abstract:PURPOSE:This article introduces the use of low power continuous wave frequency modulated radar for medical applications, specifically for remote monitoring of vital signs in patients. METHODS:Gigahertz frequency radar measures the electromagnetic wave signal reflected from the surface of a human body and from tissue b...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.3267038

    authors: Mostov K,Liptsen E,Boutchko R

    更新日期:2010-03-01 00:00:00

  • Measured electron energy and angular distributions from clinical accelerators.

    abstract::Electron energy spectra and angular distributions, including angular spreads, were measured using magnetic spectrometer techniques, at isocenter, for two clinical linear accelerators: one scanning beam machine, which achieves field flatness by scanning a pencil beam over the desired field at the patient plane, and one...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.597817

    authors: Deasy JO,Almond PR,McEllistrem MT

    更新日期:1996-05-01 00:00:00

  • Angular measurement of the cobalt-60 emitted radiation spectrum from a radiosurgery irradiator.

    abstract::The photon energy spectrum emanating from a Leksell Gamma Knife, Model 23004B, was measured between 0.250 and 3.5 MeV with the sources exposed. Measurements were made using a 2x2 inch NaI detector enclosed in a lead-shielded apparatus having a 1/4 inch diameter measurement aperture, which reduced the amount of radiati...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.1355305

    authors: Drzymala RE,Sohn JW,Guo C,Sobotka LG,Purdy JA

    更新日期:2001-04-01 00:00:00

  • SU-E-T-429: Image-Guided Eye Plaque Brachytherapy Optimization: Implications for Patients at 2-Year Follow-up.

    abstract:PURPOSE:Episcleral eye plaque brachytherapy has been utilized in the treatment of intra-ocular malignancies, delivering large prescription doses to the apex of the tumor. Advances in dose calculation and image guidance, via calibrated fundus images, enable localization of the tumor and determination of dose to the macu...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.4735518

    authors: Guida K,Niermann K,Malcolm A,Sternberg P,Munn G,Coffey C

    更新日期:2012-06-01 00:00:00

  • X-ray-transmission computed tomography.

    abstract::The immediate goal of clinically based x-ray-transmission computed tomography (CT) is to provide a measurement of the x-ray linear attenuation coefficient in cross section with the ultimate goal of impacting on patient management and care. To do this with the accuracy needed for clinical goals requires the careful int...

    journal_title:Medical physics

    pub_type: 杂志文章,评审

    doi:10.1118/1.594381

    authors: McCullough EC,Payne JT

    更新日期:1977-03-01 00:00:00

  • A contrast-detail analysis of diagnostic ultrasound imaging.

    abstract::For diagnostic ultrasound imaging, as in computed tomography, a feature of prime importance is the detection of focal lesions of varying size and contrast (echo amplitude) from surrounding tissue. This study describes a new tissue-stimulating phantom which has been used to measure the threshold detection of varying co...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.595218

    authors: Smith SW,Lopez H

    更新日期:1982-01-01 00:00:00

  • A novel curvilinear approach for prostate seed implantation.

    abstract:PURPOSE:A new technique called "curvilinear approach" for prostate seed implantation has been proposed. The purpose of this study is to evaluate the dosimetric benefit of curvilinear distribution of seeds for low-dose-rate (LDR) prostate brachytherapy. METHODS:Twenty LDR prostate brachytherapy cases planned intraopera...

    journal_title:Medical physics

    pub_type: 杂志文章,随机对照试验

    doi:10.1118/1.3694110

    authors: Podder TK,Dicker AP,Hutapea P,Darvish K,Yu Y

    更新日期:2012-04-01 00:00:00

  • A novel total variation based ring artifact suppression method for CBCT imaging with two-dimensional antiscatter grids.

    abstract:PURPOSE:Two-dimensional antiscatter grids (2DASG) for cone beam computed tomography (CBCT) is a new area of research to reduce scatter intensity, and consequently improve CBCT image quality. One of the challenges in implementation of 2DASGs is their septa shadows that are impinged on the projections. If these artifacts...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1002/mp.13456

    authors: Alexeev T,Kavanagh B,Miften M,Altunbas C

    更新日期:2019-05-01 00:00:00

  • Technical Note: Comparison of megavoltage, dual-energy, and single-energy CT-based μ-maps for a four-channel breast coil in PET/MRI.

    abstract:PURPOSE:The purpose of this study was to describe and evaluate methods for calculating a megavoltage computed tomography (MVCT)-derived MR hardware attenuation map (μ-map) and dual-energy CT (DECT) for 511 keV photons. METHODS:Phantom measurements were acquired on a whole-body hybrid PET/MRI system, using a four-chann...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1002/mp.12407

    authors: Patrick JC,Terry Thompson R,So A,Butler J,Faul D,Stodilka RZ,Yartsev S,Prato FS,Gaede S

    更新日期:2017-09-01 00:00:00

  • Addendum to the AAPM's TG-51 protocol for clinical reference dosimetry of high-energy photon beams.

    abstract::An addendum to the AAPM's TG-51 protocol for the determination of absorbed dose to water in megavoltage photon beams is presented. This addendum continues the procedure laid out in TG-51 but new kQ data for photon beams, based on Monte Carlo simulations, are presented and recommendations are given to improve the accur...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.4866223

    authors: McEwen M,DeWerd L,Ibbott G,Followill D,Rogers DW,Seltzer S,Seuntjens J

    更新日期:2014-04-01 00:00:00

  • Compensator quality control with an amorphous silicon EPID.

    abstract::The calibration and quality control of compensators is conventionally performed with an ion chamber in a water-equivalent phantom. In our center, the compensator factor and four off-axis fluence ratios are measured to verify the central axis beam modulation and orientation of the compensator. Here we report the invest...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.1584040

    authors: Menon GV,Sloboda RS

    更新日期:2003-07-01 00:00:00

  • A practical technique for verification of three-dimensional conformal dose distributions in stereotactic radiosurgery.

    abstract::The trend toward conformal techniques in stereotactic radiosurgery necessitates an accurate and practical method for verification of irregular three-dimensional dose distributions. This work presents the design and evaluation of a phantom system facilitating the measurement of conformal dose distributions using one or...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.598962

    authors: Robar JL,Clark BG

    更新日期:2000-05-01 00:00:00

  • Tolerance limits and methodologies for IMRT measurement-based verification QA: Recommendations of AAPM Task Group No. 218.

    abstract:PURPOSE:Patient-specific IMRT QA measurements are important components of processes designed to identify discrepancies between calculated and delivered radiation doses. Discrepancy tolerance limits are neither well defined nor consistently applied across centers. The AAPM TG-218 report provides a comprehensive review a...

    journal_title:Medical physics

    pub_type: 杂志文章,评审

    doi:10.1002/mp.12810

    authors: Miften M,Olch A,Mihailidis D,Moran J,Pawlicki T,Molineu A,Li H,Wijesooriya K,Shi J,Xia P,Papanikolaou N,Low DA

    更新日期:2018-04-01 00:00:00

  • Monte Carlo assessment of computed tomography dose to tissue adjacent to the scanned volume.

    abstract::The assessment of the radiation dose to internal organs or to an embryo or fetus is required on occasion for risk assessment or for comparing imaging studies. Limited resources hinder the ability to accurately assess the radiation dose received to locations outside the tissue volume actually scanned during computed to...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.1312809

    authors: Boone JM,Cooper VN 3rd,Nemzek WR,McGahan JP,Seibert JA

    更新日期:2000-10-01 00:00:00

  • Maximum likelihood estimation of proton irradiated field and deposited dose distribution.

    abstract::In proton therapy, it is important to evaluate the field irradiated with protons and the deposited dose distribution in a patient's body. Positron emitters generated through fragmentation reactions of target nuclei can be used for this purpose. By detecting the annihilation gamma rays from the positron emitters, the a...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.2712572

    authors: Inaniwa T,Kohno T,Yamagata F,Tomitani T,Sato S,Kanazawa M,Kanai T,Urakabe E

    更新日期:2007-05-01 00:00:00

  • Computer-aided measurement of liver volumes in CT by means of geodesic active contour segmentation coupled with level-set algorithms.

    abstract:PURPOSE:Computerized liver extraction from hepatic CT images is challenging because the liver often abuts other organs of a similar density. The purpose of this study was to develop a computer-aided measurement of liver volumes in hepatic CT. METHODS:The authors developed a computerized liver extraction scheme based o...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.3395579

    authors: Suzuki K,Kohlbrenner R,Epstein ML,Obajuluwa AM,Xu J,Hori M

    更新日期:2010-05-01 00:00:00

  • Reduction of peak acoustic pressure and shaping of heated region by use of multifoci sonications in MR-guided high-intensity focused ultrasound mediated mild hyperthermia.

    abstract:PURPOSE:Ablative hyperthermia (>55 °C) has been used as a definitive treatment for accessible solid tumors not amenable to surgery, whereas mild hyperthermia (40-45 °C) has been shown effective as an adjuvant for both radiotherapy and chemotherapy. An optimal mild hyperthermia treatment is spatially accurate, with prec...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.4769116

    authors: Partanen A,Tillander M,Yarmolenko PS,Wood BJ,Dreher MR,Kohler MO

    更新日期:2013-01-01 00:00:00

  • Specific recommendations for accurate and direct use of PET-CT in PET guided radiotherapy for head and neck sites.

    abstract:PURPOSE:To provide specific experience-based guidance and recommendations for centers wishing to develop, validate, and implement an accurate and efficient process for directly using positron emission tomography-computed tomography (PET-CT) for the radiotherapy planning of head and neck cancer patients. METHODS:A PET-...

    journal_title:Medical physics

    pub_type: 杂志文章

    doi:10.1118/1.4867856

    authors: Thomas CM,Pike LC,Hartill CE,Baker S,Woods E,Convery DJ,Greener AG

    更新日期:2014-04-01 00:00:00