High b-value Diffusion-weighted Imaging in Normal and Malignant Peripheral Zone Tissue of the Prostate : Effect of Signal-to-Noise Ratio
スポンサーリンク
概要
- 論文の詳細を見る
Purpose: To determine whether the apparent diffusion coefficient (ADC) obtained using a high b-value (2,000 s/mm2) is superior to that using a standard b-value (1,000 s/mm2) for discriminating malignant from normal peripheral tissue in the prostate. Methods: Twenty-six patients with biopsy-proven prostate cancer underwent 1.5T magnetic resonance (MR) imaging including single-shot, echo-planar diffusion-weighted imaging (DWI) with repetition time/echo time, 3500/88 ms; 4-mm slice thickness; 1-mm interslice gap; 144×128 matrix; field of view, 250×250 mm; number of excitations, 10; and b-values, 0, 1,000, and 2,000 s/mm2. For each patient, ADC values were obtained for malignant and normal tissue using b=1,000 and 2,000 in a monoexponential model. Signal-to-noise (SNR) and contrast-to-noise (CNR) ratios in DWI were also evaluated. Results: At b=1,000, the mean ADC (×10-3 mm2/s) for malignant tissue was 0.82±0.27 (range 0.43-1.29) and for normal tissue, 1.69±0.23 (1.31-2.18). At b=2000, the mean ADC for malignant tissue was 0.61±0.19 (0.30-0.94) and for normal tissue, 1.01±0.14 (0.73-1.35). Significant ADC overlap between the malignant and normal tissue was recognized at b=2000. As b-value increased, the mean SNR within malignant tissue decreased by 21.6%, and mean CNR decreased 17.3%. Conclusions: Under the same imaging conditions, measuring ADC using a high b-value (2,000 s/mm2) in a monoexponential model has little diagnostic advantage over using the standard b-value (1,000 s/mm2) in discriminating malignant from normal prostate tissue.
- 日本磁気共鳴医学会の論文
- 2008-06-01
著者
-
KITAJIMA Kazuhiro
Department of Chemical Science and Engineering, Kobe University
-
KAJI Yasushi
Department of Radiology, Dokkyo University School of Medicine
-
SUGIMURA Kazuro
Department of Radiology, Kobe University Graduate School of Medicine
-
KURODA Kagayaki
Department of Image-Based Medicine, Institute of Biomedical Research and Innovation
-
Kuroda Kagayaki
Department Of Human And Information Sciences Faculty Of Information And Electronics Tokai University
-
Kaji Yasushi
東京女子医科大学東医療センター 放射線科
-
Kaji Yasushi
Department Of Radiology Dokkyo Medical University School Of Medicine
-
Sugimura Kazuro
Department Of Radiology Kobe Graduate School Of Medicine
-
Kaji Yasushi
Department Of Radiology Dokkyo Medical University
-
Sugimura Kazuro
Department Of Pet Diagnosis Institute Of Biomedical Research And Innovation
-
Kitajima Kazuhiro
Department Of Pet Diagnosis Institute Of Biomedical Research And Innovation
-
Kitajima Kazuhiro
獨協医科大学 放射線医学
-
Kitajima Kazuhiro
Department Of Radiology Dokkyo Medical University School Of Medicine
-
SUGIMURA Kazuro
Department of Biomedical Informatics, Division of Radiology, Kobe University Graduate School of Medicine
-
KAJI Yasushi
Department of Biomedical Informatics, Division of Radiology, Kobe University Graduate School of Medicine
関連論文
- Effect of Perceptual Learning on Motor Skills of Hands:A Functional Magnetic Resonance Imaging Study
- Mixing Characteristics in a Conical Taylor-Couette Flow System at Low Reynolds Numbers
- Comparison of SPACE and 3D TSE MRCP at 1.5T Focusing on Difference in Echo Spacing
- Pulmonary Lymphangioleiomyomatosis in a Male Patient with Tuberous Sclerosis Complex
- Pulmonary Involvement of Malignant Melanoma : Thin-section CT Findings with Pathologic Correlation
- Feasibility of Internally Referenced Brain Temperature Imaging with a Metabolite Signal
- Estimation of Contrast of Refraction Contrast Imaging Compared with Absorption Imaging-Basic Approach
- Imaging of Fine Structure of Bone Sample with High Coherent X-ray Beam and High Spatial Resolution Detector
- Non-Invasive MR Temperature Imaging : Work-in-Progress
- Magnetic Resonance Thermography Using Water Proton Chemical Shift : Preliminary Results on Self-referenced Technique for Motion Compensation(PROCEEDINGS OF THE SCHOOL OF INFORMATION TECHNOLOGY AND ELECTRONICS OF TOKAI UNIVERSITY)
- Clinical impact of whole body FDG-PET for recurrent biliary cancer : a multicenter study
- Effect of the introduction of minimum lesion size on interobserver reproducibility using RECIST guidelines in non-small cell lung cancer patients
- Neoabjuvant androgen withdrawal prior to external radiotherapy for locally advsanced adenocarcinoma of the prostate
- Tumor response to chemotherapy : The validity and reproducibility of RECIST guidelines in NSCLC patients
- Gadolinium-Enhanced Phase-Contrast Magnetic Resonance Portography
- Double Cancer, Cholangiocellular and Hepatocellular Carcinomas, in the Cirrhotic Liver
- Accuracy of MR Temperature Measurement Based on Chemical Shift Change for Radiofrequency Ablation Using Hook-shaped Electrodes
- High b-value Diffusion-weighted Imaging in Normal and Malignant Peripheral Zone Tissue of the Prostate : Effect of Signal-to-Noise Ratio
- Diagnostic performance of CT, PET, side-by-side, and fused image interpretations for restaging of non-Hodgkin lymphoma
- Percutaneous balloon fenestration and stent placement for lower limb ischemia complicated with type B aortic dissection
- Clinical Trials of MR Thermography for Laser Ablation of Brain Tumors
- Computed tomography and magnetic resonance imaging findings of soft tissue perineurioma
- CT and MRI features of low-grade fibromyxoid sarcoma in the shoulder of a pediatric patient
- A case of ganglioneuroma presenting abnormal FDG uptake
- Bronchial Granular Cell Tumor : A Case Presenting Secondary Obstructive Changes on CT
- MR Features of Angiosarcoma in a Patient with Maffucci's Syndrome
- Role of carbon-11 choline PET/CT in the management of uterine carcinoma : initial experience
- Multi-detector Row Helical CT of the Liver : Quantitative Assessment of Iodine Concentration of Intravenous Contrast Material on Multiphasic CT-A Prospective Randomized Study
- Transcatheter Arterial Embolization for Advanced Tumor Thrombus with Marked Arterioportal or Arteriovenous Shunt Complicating Hepatocellular Carcinoma
- Cystic Hamartoma of the Renal Pelvis:Imaging Features
- Application of Self-expanding Metallic Stents to Malignant Stricture following mechanically Stapled Esophagojejunostomy:Report of Two Cases
- Accuracy of whole-body FDG-PET/CT for detecting brain metastases from non-central nervous system tumors
- Normal uptake of ^F-FDG in the testis : an assessment by PET/CT
- Squamous Cell Carcinoma of the External Auditory Canal:Two Cases Treated with High Dose Rate ^Ir Remote Afterloading System (RALS)
- Ovarian Vessel Dilatation with Ovarian Mass on MR Images : Influence of Pelvic Venous Plexus Dilatation
- Leiomyosarcoma of the renal vein : Arterial encasement on contrast-enhanced dynamic computed tomography
- Diagnosis of Chest Wall Invasion by Lung Cancer:Useful Criteria for Exclusion of the Possibility of Chest Wall Invasion with MR Imaging
- Detection of Minute Pleural Fluid in the Pleural Retracted Space Associated with Peripheral Lung Cancer:Evaluation with MR Imaging
- Comparison of Capability of Abdominal 320-Detector Row CT and of 16-Detector Row CT for Small Vasculature Assessment
- Omental torsion
- Hypointensity on Postcontrast MR Imaging from Compression of the Sacral Promontory in Enlarged Uterus with Huge Leiomyoma and Adenomyosis
- High-resolution MRI using a microscopy coil for the diagnosis of recurrent lateral patellar dislocation
- Fat saturation magnetic resonance imaging of acute myocardial infarction
- A case of Solitary Fibrous Tumor (SFT) : Usefulness of High Resolution MRI
- Topical Contrast-enhanced Magnetic Resonance Dacryocystography
- Standardized uptake values of uterine leiomyoma with ^F-FDG PET/CT : variation with age, size, degeneration, and contrast enhancement on MRI
- Ionizing Radiation Induces a p53-dependent Apoptotic Mechanism in ARPE-19 Cells
- Cystic Ovarian Lesions in SSFP Diffusion Imaging
- Feasibility of Quantitative Intrahepatic Lipid Imaging Applied to the Magnetic Resonance Dual Gradient Echo Sequence
- Evaluation of Small Internal Mammary Lymph Node Metastases in Breast Cancer by MRI
- Magnetic resonance imaging findings of endometrioid adenocarcinoma of the ovary
- Computer-aided detection of lung nodules on multidetector row computed tomography using three-dimensional analysis of nodule candidates and their surroundings
- A case of early lung cancer followed for 5 years and 7 months on chest CT/HRCT
- Usual and Unusual MRI Findings of Ovarian Fibroma : Correlation with Pathologic Findings
- Ring Enhancement on T_1-weighted GRE Images after Ferucarbotran Administration for Hepatic Metastasis : Comparison with Pathological Findings : Case Report
- Malignant Fibrous Histiocytoma Arising from the Renal Capsule
- Comparison of MR Imaging and Urodynamic Findings in Benign Prostatic Hyperplasia
- A Case of Malignant Mixed Mesodermal Tumor (MMMT) of the Ovary: MR Features before and after Chemotherapy
- Fetal MR Imaging Diagnosis of Pulmonary Agenesis
- Magnetic Resonance-visible Coating for Endovascular Device Visualization : Gadolinium(III)-Diethylenetriaminepentaacetic Acid-based Insoluble Polymer Coating
- Choroid Plexus Metastasis of Colon Cancer
- Magnetic Resonance Imaging(MRI)and Technetium-99m-methoxyisonitrile(MIBI)Scintigraphy to Evaluate the Abnormal Parathyroid Gland and PEIT Efficacy for Secondary Hyperparathyroidism
- Magnetic Resonance Angiography of the Renal Arteries Using Three-Dimensional Balanced Turbo Field-Echo Sequence with Progressive Spin Saturation
- 水プロトン化学シフトを用いた体内温度の非侵襲画像化における最近の進歩
- Markedly High Signal Intensity Lesions in the Uterine Cervix on T2-weighted Imaging: Differentiation betwen Mucin-producing Carcinomas and Nabothian Cysts
- 乳児期早期の高ガラクトース血症 : 画像所見を中心とした診断戦略
- Present and future of FDG-PET/CT in ovarian cancer
- Is contrast material needed after treatment of malignant lymphoma in positron emission tomography/computed tomography?
- Preoperative nodal staging of uterine cancer : is contrast-enhanced PET/CT more accurate than non-enhanced PET/CT or enhanced CT alone?
- Feasibility of Internally Referenced Brain Temperature Imaging with a Metabolite Signal
- Diffusion-weighted Imaging of a Malignant Brenner Tumor
- The Natural Degeneration Course in the T1rho Values of Normal Knee Cartilage
- Gd-DTPA-based MR-visible Polymer for Direct Visualization of Interventional Devices
- Effects of a proton pump inhibitor on the physiological accumulation of fluoro-2-deoxy-D-glucose (FDG) in FDG-positron emission tomography
- Recent topics related to nephrogenic systemic fibrosis associated with gadolinium-based contrast agents
- Comparison of Capability of Abdominal 320-Detector Row CT and of 16-Detector Row CT for Small Vasculature Assessment
- The Natural Degeneration Course in the T1rho Values of Normal Knee Cartilage
- Myocardial Impairment Detected by Late Gadolinium Enhancement in Hypertrophic Cardiomyopathy: Comparison with 99mTc-MIBI/Tetrofosmin and 123I-BMIPP SPECT
- Performance of FDG-PFT/CT in the diagnosis of recurrent endometrial cancer
- Recent issues in contrast-induced nephropathy