Abstract:
:This article proposes quantitative analysis tools and digital phantoms to quantify intrinsic errors of deformable image registration (DIR) systems and establish quality assurance (QA) procedures for clinical use of DIR systems utilizing local and global error analysis methods with clinically realistic digital image phantoms. Landmark-based image registration verifications are suitable only for images with significant feature points. To address this shortfall, we adapted a deformation vector field (DVF) comparison approach with new analysis techniques to quantify the results. Digital image phantoms are derived from data sets of actual patient images (a reference image set, R, a test image set, T). Image sets from the same patient taken at different times are registered with deformable methods producing a reference DVFref. Applying DVFref to the original reference image deforms T into a new image R'. The data set, R', T, and DVFref, is from a realistic truth set and therefore can be used to analyze any DIR system and expose intrinsic errors by comparing DVFref and DVFtest. For quantitative error analysis, calculating and delineating differences between DVFs, 2 methods were used, (1) a local error analysis tool that displays deformation error magnitudes with color mapping on each image slice and (2) a global error analysis tool that calculates a deformation error histogram, which describes a cumulative probability function of errors for each anatomical structure. Three digital image phantoms were generated from three patients with a head and neck, a lung and a liver cancer. The DIR QA was evaluated using the case with head and neck.
journal_name
Technol Cancer Res Treatjournal_title
Technology in cancer research & treatmentauthors
Kim H,Park SB,Monroe JI,Traughber BJ,Zheng Y,Lo SS,Yao M,Mansur D,Ellis R,Machtay M,Sohn JWdoi
10.1177/1533034614553891subject
Has Abstractpub_date
2015-08-01 00:00:00pages
428-39issue
4eissn
1533-0346issn
1533-0338pii
1533034614553891journal_volume
14pub_type
杂志文章abstract:BACKGROUND:The aim of this study was to evaluate the efficacy and toxicity of robotic CyberKnife (Accuray Incorporated, Sunnyvale, California)-based stereotactic body radiation therapy (SBRT) in patients with recurrent or metastatic abdominopelvic tumors. METHODS AND MATERIALS:A total of 69 patients treated between Ma...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034615571353
更新日期:2016-02-01 00:00:00
abstract::Chemo-radiotherapy is standard treatment of stage IIIA-N2 bulky or IIIB non-small cell lung cancer (NSCLC). Surgical resection of residual disease in downstaged patients may improve overall survival. In this setting, restaging disease is still a challenge. 18F-FDG PET/CT represents the gold standard although accuracy ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500437
更新日期:2015-12-01 00:00:00
abstract::The coupling mechanism between neuronal firing and cerebrovascular dilatation can be significantly compromised in cerebral diseases, making it difficult to identify eloquent cortical areas near or within resectable lesions by using Blood Oxygen Level Dependent (BOLD) fMRI. Several metabolic and vascular factors have ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500284
更新日期:2012-08-01 00:00:00
abstract::The incidence of optic neuropathy after stereotactic radiosurgery (SRS) is related to the total dose, fraction size, and treatment volume. Theoretically, fractionated SRS can decrease this risk. In this paper, we report our technique for fractionated SRS and assess its potential role in the management of tumors locate...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303460200100302
更新日期:2002-06-01 00:00:00
abstract::We describe the first histopathologic analysis of prostatic tissue following hypofractionated robotic radiation therapy. A 66 year-old man presented with stage II, low risk adenocarcinoma of the prostate and underwent elective conformal hypofractionated radiation therapy. His pretreatment evaluation revealed T1c adeno...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303461000900606
更新日期:2010-12-01 00:00:00
abstract::Malignant pleural mesothelioma (MPM) is a rare and aggressive tumor with generally disappointing results in terms of survival, however, there are occasional long-term survivors probably due to the biologic characteristics of the disease. Standard uptake value (SUV) of [(18)F] Fluorodeoxyglucose (FDG) evaluated by phot...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500245
更新日期:2012-04-01 00:00:00
abstract::The increasing evidence supported the role of Enhancer of Zeste Homolog 2 (EZH2) in the cancer development and progression. However, its precise role in the tumorigenesis of Nasopharyngeal Carcinoma (NPC) remains to be elucidated. EZH2 was depleted by retroviral infection in the NPC cells (HK-1, CNE-2, CNE-1 and C666-...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500315
更新日期:2013-06-01 00:00:00
abstract::This study aimed to analysis outcome and prognosis of interstitial 125I seed implantation in patients with cervical lymph node recurrence after multimodal treatment of thoracic esophageal squamous cell carcinoma (ESCC). We conducted a retrospective review of 19 patients with 32 cervical lymph nodes recurrences after m...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500409
更新日期:2015-04-01 00:00:00
abstract::At external beam radiotherapy, stereoscopic X-ray imaging system is responsible as tumor motion information provider. This system takes X-ray images intermittently from tumor position (1) at pretreatment step to provide training data set for model construction and (2) during treatment to control the accuracy of correl...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034616638803
更新日期:2017-04-01 00:00:00
abstract::Radiotherapy is frequently indicated to treat cerebral gliomas. Accurate response evaluation after radiotherapy is essential to determine the efficacy of treatment. We retrospectively analyzed the volumetric tumor response after simultaneous integrated boost-intensity modulated radiotherapy (SIB-IMRT) in patients with...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500233
更新日期:2012-02-01 00:00:00
abstract::Tumstatin (Tum) is a powerful angiostatin that inhibits proliferation and induces apoptosis of tumorous vascular endothelial cells. A nonpathogenic and anaerobic bacterium, Bifidobacterium longum (BL), selectively localizes to and proliferates in the hypoxia location within solid tumor. The aims of this study were to ...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034615581977
更新日期:2016-06-01 00:00:00
abstract::Glucose transporter 1 (GLUT1) facilitates the cellular uptake of glucose and is overexpressed in most cancers. The altered expression of GLUT1 may influence the sensitivity of tumor cells to chemotherapy. This study investigated whether the knockdown of GLUT1 expression to sensitize head and neck cancer cells to the c...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500343
更新日期:2013-12-01 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
abstract:UNLABELLED:The purpose of this study was to compare the prognostic value of the percentage of positive biopsy cores (PPBC), the percentage of cancer volume (PCV), and the maximum involvement of biopsy cores (MIBC) as a prognostic factor in low- and intermediate-risk patients with clinically localized prostate cancer wh...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrtexpress.2013.600271
更新日期:2014-06-01 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:PURPOSE:The aim of the in vivo dosimetry, during the fractionated radiation therapy, is the verification of the correct dose delivery to patient. Nowadays, in vivo dosimetry procedures for photon beams are based on the use of the electronic portal imaging device and dedicated software to elaborate electronic portal ima...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033818779201
更新日期:2018-01-01 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::For most basic radiobiological research applications involving irradiation of small animals, it is difficult to achieve the same high precision dose distribution realized with human radiotherapy. The precision for irradiations performed with standard radiotherapy equipment is +/-2 mm in each dimension, and is adequate...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/153303460300200510
更新日期:2003-10-01 00:00:00
abstract:PURPOSE:To evaluate a method for reducing metal artifacts, arising from dental fillings, on cone-beam computed tomography images. MATERIALS AND METHODS:A projection interpolation algorithm is applied to cone-beam computed tomography images containing metal artifacts from dental fillings. This technique involves identi...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034615618319
更新日期:2016-12-01 00:00:00
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 dail...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500199
更新日期:2011-06-01 00:00:00
abstract::eLiposomes encapsulate a perfluorocarbon nanoemulsion droplet inside a liposome. Ultrasound is then used as a trigger mechanism to vaporize the perfluorocarbon, break the liposome, and release the desired drug to the tumor tissue. The purpose of this research is to show that eLiposomes synthesized using perfluoropenta...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533034614551480
更新日期:2015-08-01 00:00:00
abstract:BACKGROUND:Our objective is to explore the accuracy of magnetic resonance imaging in determining the preoperative T and N staging, pathological stage, and the length of esophageal tumor in patients with esophageal cancer. METHODS:This retrospective analysis included 57 patients admitted to the Department of Thoracic S...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033819876263
更新日期:2019-01-01 00:00:00
abstract::Colorectal cancer is one of the most common cancers in the world. Protein phosphatase magnesium-dependent 1 d (PPM1D) is aberrantly upregulated in many human carcinoma cells, and recent research has suggested that it could be a potential therapeutic target of cancer. However, the function of PPM1D in colorectal carcin...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.7785/tcrt.2012.500349
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND AND AIMS:To evaluate long-term outcomes and prognostic factors of laparoscopic microwave ablation as a first-line treatment for hepatocellular carcinoma located at the liver surface not feasible for percutaneous ablation. METHODS:51 consecutive patients receiving laparoscopic microwave ablation in our cente...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033818824338
更新日期:2019-01-01 00:00:00
abstract::This successor phase II study evaluates the tolerability and efficacy of concomitant hyperfractionated radiation therapy (HFX-RT) and double dose intra-arterial (IA) cisplatin in patients with locally advanced squamous cell carcinoma of the head and neck (SCCHN). In doing so, this study represents further resurgence o...
journal_title:Technology in cancer research & treatment
pub_type: 临床试验,杂志文章
doi:10.1177/153303460200100206
更新日期:2002-04-01 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:INTRODUCTION:Osteosarcoma is the most common primary tumor of bone, although some molecular markers have been identified, the detailed molecular mechanisms underlying osteosarcoma are currently not fully understood. In the present study, we attempted to identify the potential key genes and pathways in osteosarcoma usin...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033820965605
更新日期:2020-01-01 00:00:00
abstract::Spinal metastases are a common manifestation of malignant tumors that can cause severe pain, spinal cord compression, pathological fractures, and hypercalcemia, and these clinical manifestations will ultimately reduce the health-related quality of life and even shorten life expectancy in patient with cancer. Effective...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033820945798
更新日期:2020-01-01 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:BACKGROUND:Palliation of advanced disease using radiotherapy can create difficult clinical situations where standard computed tomography simulation and immobilization techniques are not feasible. We developed a linear accelerator-based radiotherapy simulation technique using nonstandard patient positioning for head and...
journal_title:Technology in cancer research & treatment
pub_type: 杂志文章
doi:10.1177/1533033819865623
更新日期:2019-01-01 00:00:00