Prostate Cancer: Body-Array versus Endorectal Coil MR Imaging at 3 T—Comparison of Image Quality, Localization, and Staging Performance

Heijmink, Stijn W. T. P. J.; Fütterer, Jurgen J.; Hambrock, Thomas; Takahashi, Satoru; Scheenen, Tom W. J.; Huisman, Henkjan; Kaa, Christina A. Hulsbergen‐van de; Knipscheer, Ben C.; Kiemeney, Lambertus A.; Witjes, J. Alfred; Barentsz, Jelle O.

doi:10.1148/radiol.2441060425

Cited by 289 publications

(214 citation statements)

References 42 publications

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“…A few studies assessed the additional value of the use of an ERC for prostate MRI at 3.0 Tesla. These studies demonstrated an incremental benefit for image quality using an ERC [4,7,8] . However, it remains unclear if further improved SNR at 3.0 Tesla by an ERC improves diagnostic performance [9] .…”

Section: Discussionmentioning

confidence: 87%

“…The findings correspond to the results of a study by Wagner et al [3] at 1.5 Tesla with ERC that found no significant effect of intravenous or intramuscular administration of HBB for visualisation of the prostate, neurovascular bundles, pelvic lymph nodes, and overall image quality. Studies promoting the use of HBB for pelvic MRI emphasize the advantage of suppressing bowel peristalsis to reduce motion artefacts [4,7,8] , which is particularly the case in MR-sequences with long acquisition times such as T2w TSE sequences [9] . Nevertheless, motion artefacts were comparably low in both of our assessed groups, which could be explained by the anatomical distance between the prostate and small bowel.…”

Section: Discussionmentioning

confidence: 99%

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Prostate magnetic resonance imaging at 3 Tesla: Is administration of hyoscine-N-butyl-bromide mandatory?

Roethke

Kuru

Radbruch³

et al. 2013

WJR

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AIM:To evaluate the value of administration of hyoscine-N-butyl-bromide (HBB) for image quality magnetic resonance imaging (MRI) of the prostate. METHODS:Seventy patients were retrospectively included in the study. Thirty-five patients were examined with administration of 40 milligrams of HBB (Buscopan ® ; Boehringer, Ingelheim, Germany); 35 patients were examined without HBB. A multiparametric MRI protocol was performed on a 3.0 Tesla scanner without using an endorectal coil. The following criteria were evaluated independently by two experienced radiologists on a five-point Likert scale: anatomical details (delineation between peripheral and transitional zone of the prostate, visualisation of the capsule, depiction of the neurovascular bundles); visualisation of lymph nodes; motion related artefacts; and overall image quality. RESULTS:Comparison of anatomical details between the two cohorts showed no statistically significant difference (3.9 ± 0.7 vs 4.0 ± 0.9, P = 0.54, and 3.8 ± 0.7 vs 4.2 ± 0.6, P = 0.07) for both readers. There was no significant advantage regarding depiction of local and iliac lymph nodes (3.9 ± 0.6 vs 4.2 ± 0.6, P = 0.07, and 3.8 ± 0.9 vs 4.1 ± 0.8, P = 0.19). Motion artefacts were rated as "none" to "few" in both groups and showed no statistical difference (2.3 ± 1.0 vs 1.9 ± 0.9, P = 0.19, and 2.3 ± 1.1 vs 1.9 ± 0.7, P = 0.22). Overall image quality was rated "good" in average for both cohorts without significant difference (4.0 ± 0.6 vs 4.0 ± 0.9, P = 0.78, and 3.8 ± 0.8 vs 4.2 ± 0.6, P = 0.09). CONCLUSION:The results demonstrated no significant effect of HBB administration on image quality. The study suggests that use of HBB is not mandatory for MRI of the prostate at 3.0 Tesla.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Prostate magnetic resonance imaging at 3 Tesla: Is administration of hyoscine-N-butyl-bromide mandatory?

Roethke

Kuru

Radbruch³

et al. 2013

WJR

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“…The effect of the endorectal coil on compression of the PZ glandular tissue and hence on T 2 has not formally been investigated, although, given the data in this study, the use of an endorectal coil is unlikely to cause significant reduction in PZ T 2 and compromise tumour to PZ contrast. In a study of 46 patients done with and without an endorectal coil at 3.0 T, the diagnostic performance of T 2 W imaging was improved in the former because of increased spatial resolution [27].…”

Section: Discussionmentioning

confidence: 99%

Relationship betweenT₂relaxation and apparent diffusion coefficient in malignant and non-malignant prostate regions and the effect of peripheral zone fractional volume

Simpkin

Morgan²,

Giles³

et al. 2013

BJR

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Objective: To establish whether T 2 relaxation and apparent diffusion coefficient (ADC) in normal prostate and tumour are related and to investigate the effects of glandular compression from an enlarged transition zone (TZ) on peripheral zone (PZ) T 2 and ADC by correlating them with the peripheral zone fractional volume (PZFV).Methods: 48 consecutive patients prospectively underwent multiecho T 2 weighted (T 2 W) (echo times 20, 40, 60, 80, 100 ms) and diffusion-weighted (b50, 100, 300, 500, 800 s mm 22 ) endorectal MRI. In 43 evaluable patients, single slice whole PZ, TZ and tumour (focal hypointense signal on T 2 W images in a biopsy-positive octant) regions of interest were transferred to T 2 and ADC maps by slice matching. T 2 and ADC values were correlated, and PZ values were correlated with PZFV.

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“…Diagnostic performance has improved as new technological developments such as endorectal coil imaging and increasing field strengths has allowed for imaging at higher resolutions (2)(3)(4). The T2W-RARE applies a 2D sampling regime.…”

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confidence: 99%

Three‐dimensional balanced steady state free precession imaging of the prostate: Flip angle dependency of the signal based on a two component T2‐decay model

Storås

Gjesdal²,

Gadmar

et al. 2010

Magnetic Resonance Imaging

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Purpose: To investigate the contrast of three-dimensional balanced steady state free precession (3D bSSFP) in the two component T2 model and to apply the results to optimize 3D bSSFP for prostate imaging at 1.5 Tesla. Materials and Methods:In each of seven healthy volunteers, six 3D bSSFP acquisitions were performed with flip angles (a) equally spaced between 10 and 110 . Predictions of signal and contrast were obtained from synthetic bSSFP images calculated from relaxation parameters obtained from a multi-spin-echo acquisition. One biexponential and two monoexponential models were applied. Measured and predicted signals were compared by simple linear regression. Results:The measured contrast to signal ratio increased continuously with a. Mean R 2 for the biexponential model was almost constant for a in the range 50-110 . The biexponential model was a better predictor of the measured signal than the monoexponential model. A monoexponential model restricted to the echoes TE ¼ 50-125 ms performed similar to the biexponential model. The predicted contrast peaked at a between 50 and 90 .Conclusion: Prostate imaging with bSSFP benefited from high flip angles. The biexponential model provided good signal prediction while predictions from the monoexponential models are dependent on the range of TE used for T2 determination. IN PROSTATE IMAGING, anatomical details are excellently depicted by MRI using T2-weighted rapid acquisition with relaxation enhancement (RARE) (also known as T2W-TSE or T2W-FSE), which has been the gold standard (1,2).Diagnostic performance has improved as new technological developments such as endorectal coil imaging and increasing field strengths has allowed for imaging at higher resolutions (2-4). The T2W-RARE applies a 2D sampling regime. Hence, imaging is constrained to relatively thick (>3 mm) slices. The diagnostic performance is expected to improve if throughplane image resolution is increased. To achieve thinner slices, a 3D sampling regimen is required. Ikonen et al (5) demonstrated thin-slice (1.5 mm) prostate imaging by applying the 3D dual-echo steady state (DESS) (6) technique. Further improvements in resolution may be gained by applying the simpler and more time-efficient balanced steady state free precession (bSSFP) sequence also known as balanced FFE, TrueFISP,. This technique is ideal for 3D scanning because it may be implemented with very short repetition time (TR) without loss of signal.The contrast of bSSFP has been thoroughly described (7-9). It is dependent on the tissue T2/T1-ratio, flip angle, and resonance offset. It has been shown that T2 decay in prostate tissue is of biexponential nature (10,11). The bSSFP signal may be predicted based on the results of the two component model. This presumably provides a more accurate tool for sequence optimization than the use of the monoexponential model.The aim of this work was to investigate the contrast of 3D bSSFP in the light of a two component T2 model and to apply the results to optimize high resolution 3D bSSFP for prostate im...

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Prostate Cancer: Body-Array versus Endorectal Coil MR Imaging at 3 T—Comparison of Image Quality, Localization, and Staging Performance

Abstract: Image quality and localization improved significantly with ERC imaging compared with BAC imaging. For experienced radiologists, the staging performance was significantly better with ERC imaging.

Cited by 289 publications

References 42 publications

Prostate magnetic resonance imaging at 3 Tesla: Is administration of hyoscine-N-butyl-bromide mandatory?

Prostate magnetic resonance imaging at 3 Tesla: Is administration of hyoscine-N-butyl-bromide mandatory?

Relationship betweenT₂relaxation and apparent diffusion coefficient in malignant and non-malignant prostate regions and the effect of peripheral zone fractional volume

Three‐dimensional balanced steady state free precession imaging of the prostate: Flip angle dependency of the signal based on a two component T2‐decay model

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Prostate Cancer: Body-Array versus Endorectal Coil MR Imaging at 3 T—Comparison of Image Quality, Localization, and Staging Performance

Abstract: Image quality and localization improved significantly with ERC imaging compared with BAC imaging. For experienced radiologists, the staging performance was significantly better with ERC imaging.

Cited by 289 publications

References 42 publications

Prostate magnetic resonance imaging at 3 Tesla: Is administration of hyoscine-N-butyl-bromide mandatory?

Prostate magnetic resonance imaging at 3 Tesla: Is administration of hyoscine-N-butyl-bromide mandatory?

Relationship betweenT2relaxation and apparent diffusion coefficient in malignant and non-malignant prostate regions and the effect of peripheral zone fractional volume

Three‐dimensional balanced steady state free precession imaging of the prostate: Flip angle dependency of the signal based on a two component T2‐decay model

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Relationship betweenT₂relaxation and apparent diffusion coefficient in malignant and non-malignant prostate regions and the effect of peripheral zone fractional volume