Abstract:
:This study was designed to estimate the risk of radiation-associated tumors and clinical toxicity in the brain following fractionated radiation treatment of pituitary adenoma. A standard case of a patient with a pituitary adenoma was planned using 8 different dosimetric techniques. Total dose was 50.4 Gy (GyE) at daily fractionation of 1.8 Gy (GyE). All methods utilized the same CT simulation scan with designated target and normal tissue volumes. The excess risk of radiation-associated second tumors in the brain was calculated using the corresponding dose-volume histograms for the whole brain and based on the data published by the United Nation Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) and a risk model proposed by Schneider. The excess number of second tumor cases per 10,000 patients per year following radiation is 9.8 for 2-field photons, 18.4 with 3-field photons, 20.4 with photon intensity modulated radiation therapy (IMRT), and 25 with photon stereotactic radiotherapy (SRT). Proton radiation resulted in the following excess second tumor risks: 2-field 5 5.1, 3-field 5 12, 4-field 5 15, 5-field 5 16. Temporal lobe toxicity was highest for the 2-field photon plan. Proton radiation therapy achieves the best therapeutic ratio when evaluating plans for the treatment of pituitary adenoma. Temporal lobe toxicity can be reduced through the use of multiple fields but is achieved at the expense of exposing a larger volume of normal brain to radiation. Limiting the irradiated volume of normal brain by reducing the number of treatment fields is desirable to minimize excess risk of radiation-associated second tumors.
journal_name
Technol Cancer Res Treatjournal_title
Technology in cancer research & treatmentauthors
Winkfield KM,Niemierko A,Bussiere MR,Crowley EM,Napolitano BN,Beaudette KP,Loeffler JS,Shih HAdoi
10.7785/tcrt.2012.500199subject
Has Abstractpub_date
2011-06-01 00:00:00pages
243-51issue
3eissn
1533-0346issn
1533-0338pii
c4311/c4314/Modeling-Intracranial-Second-Tumor-Risjournal_volume
10pub_type
杂志文章abstract::The combined effect of high energy shock waves (HESW), generated by a piezoelectric device, and paclitaxel on Mat B-III rat breast cancer cells in vitro and in an in vivo animal model is presented. A significant reduction of in vitro Mat B-III cell proliferation versus cells treated with paclitaxel alone was observed ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303460800700204
更新日期:2008-04-01 00:00:00
abstract:BACKGROUND:Testicular cancer represents the most common malignancy in young adult men. In the current study, we sought to analyze and compare the prognostic value of lymph node ratio (LNR) as well as positive lymph node counts (LNC) to understand its clinical significance in testicular germ cell tumors. METHODS:We emp...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033820979702
更新日期:2021-01-01 00:00:00
abstract:PURPOSE:We investigated the dosimetric effect of intrafraction tumor motion in lung stereotactic body radiotherapy using the CyberKnife static tracking system. METHODS:Four-dimensional computed tomography scans of a dynamic thorax phantom were acquired. Two motion ranges, 3 collimator sizes, and 4 treatment starting p...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033819859448
更新日期:2019-01-01 00:00:00
abstract::The therapeutic utility of the anthracycline antibiotic doxorubicin is limited due to its cardiotoxicity. Our aim was to investigate the efficacy of fullerenol C(60)(OH)(24) in preventing single, high-dose doxorubicin-induced cardiotoxicity in rats with malignant neoplasm. Experiment was performed on adult female Spra...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303460800700102
更新日期:2008-02-01 00:00:00
abstract::The purpose of the investigation was to assess positron emission tomography (PET), computed tomography (CT) and the image fusion of PET and CT (PET/CT) in the detection of metastases from gastrointestinal neuroendocrine tumors. In a prospective study, thirty-one patients were consecutively examined using a state-of-th...
journal_title:Technology in cancer research & treatment
pub_type: 临床试验,杂志文章
doi:10.1177/153303460700600309
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND:Circulating tumor cells (CTCs) hold huge potential for both clinical applications and basic research into the management of cancer, but the relationship between CTC count and cervical cancer prognosis remains unclear. Therefore, research on this topic is urgently required. OBJECTIVE:This study investigated ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033820957005
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVES:To test the feasibility of modified biopsy needles as probes for irreversible electroporation ablation and periprocedural biopsy. METHODS:Core biopsy needles of 16-G/9-cm were customized to serve as experimental ablation probes. Computed tomography-guided percutaneous irreversible electroporation was perfor...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034615608739
更新日期:2016-12-01 00:00:00
abstract::This paper models steady state acoustic release of Doxorubicin (Dox) from Pluronic P105 micelles using Artificial Neural Networks (ANN). Previously collected release data were compiled and used to train, validate, and test an ANN model. Sensitivity analysis was then performed on the following operating conditions: ult...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303460700600107
更新日期:2007-02-01 00:00:00
abstract::The aim of this study is to evaluate the volume differences between contrast-enhanced CT-based left ventricle (LV) and PET-CT-based LV and assess the impact of dose on the substructure volume differences in patients with left breast cancer treated with adjuvant radiotherapy. From October 2008 to February 2009, 14 pati...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500299
更新日期:2013-04-01 00:00:00
abstract::Hepatocellular carcinoma is the fourth leading cause of cancer-related death worldwide. Depending on the extent of disease and competing comorbidities for mortality, multiple liver-directed therapy options exist for the treatment of hepatocellular carcinoma. Advancements in radiation oncology have led to the emergence...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章,评审
doi:10.1177/1533033818790217
更新日期:2018-01-01 00:00:00
abstract::Complement 3a (C3a) and complement 5a (C5a), small cleavage fragments generated by complement activation, has been previously shown to be obviously up-regulated in highly metastatic hepatocellular carcinoma (HCC) cells. However, their functional roles in HCC cells remains unclear. Here, we investigated the biological ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033820970668
更新日期:2020-01-01 00:00:00
abstract::The therapy of brain tumors has been limited by a lack of effective methods of drug delivery to the brain. Systemic administration is often associated with toxic side effects and ultimately fails to achieve therapeutic concentrations within a tumor. An attractive strategy that has gained importance in brain tumor ther...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章,评审
doi:10.1177/153303460500400409
更新日期:2005-08-01 00:00:00
abstract::Recombinant Newcastle Disease Virus (rNDV) has shown oncolytic therapeutic effect in preclinical studies. Previous data indicate that rNDV carrying IL2 has shown promise in cancer therapy. Due to the significant side effects of IL2, IL15 has been introduced into cancer therapy. A number of studies have suggested that ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500414
更新日期:2015-10-01 00:00:00
abstract:PURPOSE:In this study, we aimed to evaluate the prognostic value of fluorodeoxyglucose uptake in the lung parenchyma and the presence of subclinical interstitial lung disease on computed tomography as predictive factors for survival following stereotactic body radiation therapy in patients with stage I non-small cell l...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033818794934
更新日期:2018-01-01 00:00:00
abstract::The efficacy of photodynamic therapy for the treatment of a large number of skin diseases, in particular non-malignant skin cancer, has been reported by a number of studies. It has been demonstrated to be particularly beneficial for large or multiple lesions, especially where good cosmesis is required. However for PDT...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章,评审
doi:10.1177/153303460300200402
更新日期:2003-08-01 00:00:00
abstract::Poorly differentiated cell populations including tumor-initiating stem cells have been demonstrated to display a unique ability to natively internalize fragmented double-stranded DNA. Using this feature as a marker, we show that 0.1% to 6% of human glioblastoma cells from the bioptates can effectively internalize a fl...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034617753812
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:To assess the efficacy of stereotactic body radiotherapy in patients with unresectable locally advanced pancreatic cancer. MATERIALS AND METHODS:All patients received a prescription dose of 45 Gy in 6 fractions. Primary end point was freedom from local progression. Secondary end points were overall survival, p...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034616650778
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:The incidence of nasopharyngeal carcinoma is increasing gradually, but the pathogenesis is not completely clear. MicroRNA, a highly conserved endogenous noncoding small molecule RNA, plays an essential role in the regulation of gene expression and is a hotspot in cancer research worldwide. OBJECTIVES:Althou...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033819892251
更新日期:2020-01-01 00:00:00
abstract::We used a shifted-excitation Raman difference spectroscopy method for the ex vivo classification of resected and formalin-fixed breast tissue samples as normal (healthy) tissue, fibroadenoma, or invasive carcinoma. We analyzed 8 tissue samples containing invasive carcinoma that were surrounded by normal tissue and 3 t...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033818782532
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:To evaluate 2 simultaneous integrated boost treatment planning techniques using helical tomotherapy for breast conserving therapy with regard to acute skin toxicity and dosimetry. METHODS:Thirty-two patients were studied. The original approach was for 16 patients and incorporated a directional block of the ips...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034615574387
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVE:Acute myeloid leukemia (AML) represents a hematological cancer. The aim of the investigation was to probe the regulatory relevance of long non-coding RNA (lncRNA) aspartyl-tRNA synthetase anti-sense 1 (DARS-AS1)/microRNA-425 (miR-425)/transforming growth factor-beta 1 (TGFB1) to the development of AML. METHO...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033820965580
更新日期:2020-01-01 00:00:00
abstract::We attempted to characterize the cellular autofluorescence phenomenon of living HL-60 cells and to appraise its modifications under oxidative stress conditions induced by 1 alpha,25(OH)(2)D(3) (VD(3)) and its analog EB1089. Autofluorescence emission spectra of human promyelocytic HL-60 leukemic cells were monitored us...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303460400300409
更新日期:2004-08-01 00:00:00
abstract::We have developed a small animal conformal radiation therapy device that provides a degree of geometrical/anatomical targeting comparable to what is achievable in a commercial animal irradiator. small animal conformal radiation therapy device is capable of producing precise and accurate conformal delivery of radiation...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034615626011
更新日期:2017-02-01 00:00:00
abstract:PURPOSE:The study was aimed to compare online 6 degree-of-freedom image registrations of TrueBeam cone-beam computed tomography and BrainLab ExacTrac X-ray imaging systems for intracranial radiosurgery. METHODS:Phantom and patient studies were performed on a Varian TrueBeam STx linear accelerator (version 2.5), which ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034616683069
更新日期:2017-06-01 00:00:00
abstract::A review of the literature on the current applications of breast magnetic resonance imaging (MRI) indications, their rationale and their place in diagnosis and management of breast cancer was given. Contrast-enhanced breast MRI is developing as a valuable adjunct to mammography and sonography. Its high sensitivity for...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章,评审
doi:10.1177/153303460400300602
更新日期:2004-12-01 00:00:00
abstract::Optical methods such as reflectance and fluorescence spectroscopy are being investigated for their potential to aid cancer detection in a quantitative, minimally invasive manner. Mathematical models of reflectance and fluorescence provide an important link between measured optical data and biomedically-relevant tissue...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章,评审
doi:10.7785/tcrt.2012.500187
更新日期:2011-04-01 00:00:00
abstract::Helical tomotherapy is a form of image-guided intensity-modulated radiotherapy that introduces the ring gantry concept into radiation oncology. The system is a combination of a therapeutic linear accelerator and a megavoltage CT-scanner. This work describes the clinical experience with megavoltage CT with 456 patients...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303460900800504
更新日期:2009-10-01 00:00:00
abstract::Intraoperative MRI (iMRI) is used in glioma surgery mainly to determine the extent of resection, allowing surgeons to immediately continue resection in case of residual tumor tissue. The aim of this study is to report on the influence of the use of iMRI on the extent of resection and survival of patients with glioblas...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303461000900404
更新日期:2010-08-01 00:00:00
abstract::Blood flow is a key parameter in studying cancer angiogenesis and hypermetabolism. Current photoacoustic blood flow estimation methods focus on either the axial or transverse component of the flow vector. However, the Doppler angle (beam-to-flow angle) is needed to calculate the total flow speed, and it cannot always ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500278
更新日期:2012-08-01 00:00:00
abstract::Stereotactic body radiation therapy is a well-tolerated modality for the treatment of primary and metastatic liver lesions, and fiducials are often used as surrogates for tumor tracking during treatment. We evaluated respiratory-induced liver deformation by measuring the rigidity of the fiducial configuration during t...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034616687193
更新日期:2017-12-01 00:00:00