To retrospectively evaluate the imaging quality of diffusion-weighted (DWI), compare apparent diffusion coefficient (ADC) values for malignant and benign tissues in peripheral zone (PZ) transition (TZ), whether T2-weighted (T2WI) with DWI could improve prediction prostate cancer location when compared T2WI at 3T using a phased-array coil.Thirty-seven patients underwent before radical prostatectomy. The technique b = 0 1000 s/mm2 was used. ADC were measured PZ or TZ. evaluated TZ DWI,...

High-b-Value Diffusion-Weighted Imaging at 3 T to Detect Prostate Cancer: Comparisons Between b Values of 1,000 and 2,000 s/mm2Chan Kyo Kim1, Byung Kwan Park1 Bohyun Kim2Audio Available | Share

To prospectively evaluate the incremental value of diffusion-weighted imaging (DWI) with apparent diffusion coefficient (ADC) maps in addition to T2-weighted (T2WI) for predicting locally recurrent prostate cancer patients biochemical failure after radiation therapy.Thirty-six consecutive an increased prostate-specific antigen level therapy underwent 3T MRI followed by transrectal biopsy. The findings and biopsy results were correlated sextant sectors peripheral zones (PZs). Two radiologists...

The purpose of our study was to prospectively evaluate whether MRI before an initial transrectal ultrasound-guided biopsy contributed detection prostate cancer in patients with high prostate-specific antigen (PSA) level and no previous biopsy.Men abnormal digital rectal examination or PSA were enrolled this prospective randomized study. Participants randomly allocated into two groups; the group underwent 3-T then a knowledge location. non-MRI did not undergo biopsy. rate positive core...

To retrospectively compare absolute and relative washout of adrenal metastases in patients with renal cell carcinoma (RCC) hepatocellular (HCC) to that adenoma.Between November 1994 August 2011, this institutional review board-approved study (with waiver informed consent), 16 19 (16 13 RCC patients, three HCC patients) 20 21 adenomas 15 five underwent dedicated protocol consisting unenhanced, 1-minute contrast material-enhanced, 15-minute delayed contrast-enhanced computed tomography (CT)....

OBJECTIVE. The purpose of this article is to retrospectively compare the accuracy MRI and CT in characterizing lipid-poor adrenal adenomas with respect lesion-attenuation values measured on unenhanced CT.

Purpose: To retrospectively compare the accuracy of delayed enhanced computed tomography (CT) and chemical shift magnetic resonance (MR) imaging for characterizing hyperattenuating adrenal masses at CT, with either follow-up or pathologic review as reference standard. Materials Methods: The institutional board approved this retrospective study a waiver patient informed consent. Forty-three (>10 HU) on unenhanced CT images were found in 34 patients (23 men 11 women; mean age, 52.7 years) by...

To compare dynamic contrast-enhanced imaging and T2-weighted using a 3T MR unit for the localization of prostate cancer.Twenty consecutive patients with biopsy-proven cancer underwent both imaging. At imaging, presence or absence confined within without extracapsular adjacent organ invasion was evaluated in peripheral zones base, mid-gland, apex on each side. Final decisions were made by consensus between two radiologists. Degrees depiction tumor borders graded as poor, fair,...

To evaluate prospectively the use of apparent diffusion coefficients (ADCs) for differentiation malignant and benign tissue in transition (TZ) peripheral (PZ) zones prostate diffusion-weighted imaging (DWI) at 3 T magnetic resonance (MRI) using a phased-array coil.The DWI 3-T MRI was performed on total 35 patients before radical prostatectomy. A single-shot echo-planar technique with b = 0 1000 s/mm2 used. The ADC values were measured both tissues PZ TZ regions interest. Differences between...

MRI Techniques for Prediction of Local Tumor Progression After High-Intensity Focused Ultrasonic Ablation Prostate CancerChan Kyo Kim1, Byung Kwan Park1, Hyun Moo Lee2, Sam Soo Kim3 and EunJu Kim4Audio Available | Share

OBJECTIVE. The objective of our study was to investigate the changes apparent diffusion coefficient (ADC) values in prostate cancers before and after radiotherapy at 3 T using a phased-array coil.

Objective: To retrospectively evaluate local staging accuracy for prostate cancer at 3.0-T magnetic resonance imaging (MRI) by comparing with that 1.5-T MRI. Methods: Two groups, each consisting of 54 patients, were included matching age, specific antigen, and Gleason score. Before radical prostatectomy, 1 group underwent MRI using a phased-array coil, the other an endorectal coil. T2-weighted MR images 3.0 1.5 T analyzed in consensus 2 radiologists, their was compared histology. Artifact...

The objective of our study was to assess the utility dual-energy CT for characterizing renal masses using iodine overlay techniques and virtual unenhanced images measure potential radiation dose reduction two-phase kidney compared with a standard three-phase protocol.Sixty patients suspected underwent including true unenhanced, corticomedullary, late nephrographic phase imaging. Iodine were derived from corticomedullary phases, respectively. numbers calculated superimposed on images. overall...

To determine the diagnostic performance of dual-energy computed tomography (CT) by using virtual unenhanced CT to characterize adrenal masses.This study is retrospective, HIPAA-compliant, and approved institutional review board. Between December 2009 June 2010, 49 patients with masses underwent 120-kVp 80-kVp 140-kVp early delayed contrast agent-enhanced CT. Early (EVU) (DVU) images were composed data sets contrast-enhanced CT, respectively. Adenomas divided into lipid-rich adenoma...

To retrospectively investigate the value of fused T2-weighted and high-b-value diffusion-weighted imaging with background body signal suppression (DWIBS) at 3 T to evaluate parametrial invasion in cervical cancer.In this institutional review board-approved study, 152 consecutive patients biopsy-proven cancer who underwent radical hysterectomies also pretreatment magnetic resonance (T2-weighted DWIBS) T. Two radiologists independently evaluated presence imaging, DWIBS (ie, DWIBS), combined...

To determine the accuracy of preoperative staging uterine cervical cancer by magnetic resonance (MR) imaging in 115 patients a prospective study.A study was performed who underwent MR at 1.5 T before surgery or biopsy. Histopathologic findings were correlated with results for all patients.The tumor 77%. In terms evaluation parametrial status, this had an 94% and sensitivity 38%. The vaginal invasion 81% 87%, respectively. lymph node metastasis, 97% 36%.Magnetic has high cancer.

OBJECTIVE. The purpose of our study was to describe the MRI features gossypiboma and correlate findings with pathologic in four patients.

Objective: To assess the use of diffusion-weighted imaging (DWI) at 3 Tesla (T) for lesion localization in patients with a high risk prostate cancer before rebiopsy. Materials and Methods: A total 43 (age range, 40–80 years; mean age, 62.6 years) who had previously undergone transrectal ultrasound (TRUS)-guided biopsy that was negative continued to have persistent elevated specific antigen level underwent DWI b = 0 s/mm2 1000 We located area lowest apparent diffusion coefficient values...