JOURNAL CLUB: Comparison of Assessment of Preoperative Pulmonary Vasculature in Patients With Non–Small Cell Lung Cancer by Non–Contrast- and 4D Contrast-Enhanced 3-T MR Angiography and Contrast-Enhanced 64-MDCT

Ohno, Yoshiharu; Nishio, Motohiro; Koyama, Hisanobu; Yoshikawa, Takeshi; Matsumoto, Shinsuke; Seki, Shu; Sugimura, Kazuro

doi:10.2214/ajr.13.10833

Cited by 17 publications

(15 citation statements)

References 36 publications

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“…In accordance with the American Thoracic Society standards, pulmonary function was tested with an automatic spirometer (System 21; Minato Ikagaku, Osaka, Japan) before and after treatment. All preoperative pulmonary function spirometric tests were performed within 2 weeks prior to MR examination (mean, 4.2 days) for determination of preoperative%FEV 1 , and the same tests were performed postoperatively within 24–28 weeks following surgery (mean, 25 weeks) for determination of actual postoperative%FEV 1 .…”

Section: Methodsmentioning

confidence: 99%

3D ECG- and respiratory-gated non-contrast-enhanced (CE) perfusion MRI for postoperative lung function prediction in non-small-cell lung cancer patients: A comparison with thin-section quantitative computed tomography, dynamic CE-perfusion MRI, and perfus

Ohno

Seki

Koyama

et al. 2014

J. Magn. Reson. Imaging

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Section: Methodsmentioning

confidence: 99%

3D ECG- and respiratory-gated non-contrast-enhanced (CE) perfusion MRI for postoperative lung function prediction in non-small-cell lung cancer patients: A comparison with thin-section quantitative computed tomography, dynamic CE-perfusion MRI, and perfus

Ohno

Seki

Koyama

et al. 2014

J. Magn. Reson. Imaging

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“…45 Arterial spin labelling techniques can provide non-contrast MRA sequences using an inversion-recovery inflow-based technique. 46 This technique has recently been used to assess the pulmonary vasculature in pre-surgical patients with non-small-cell lung cancer 47 and also to look for pulmonary arteriovenous malformations. 48 BUILDING A CLINICAL SERVICE Although the use of pulmonary MRA is increasing, widespread implementation has yet to occur.…”

Section: Time-resolved Contrast-enhanced Perfusion Imagingmentioning

confidence: 99%

Contrast-enhanced pulmonary MRA for the primary diagnosis of pulmonary embolism: current state of the art and future directions

Benson

Schiebler

Repplinger

et al. 2017

BJR

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CT pulmonary angiography (CTPA) is currently considered the imaging standard of care for the diagnosis of pulmonary embolism (PE). Recent advances in contrast-enhanced pulmonary MR angiography (MRA) techniques have led to increased use of this modality for the detection of PE in the proper clinical setting. This review is intended to provide an introduction to the state-of-the-art techniques used in pulmonary MRA for the detection of PE and to discuss possible future directions for this modality. This review discusses the following issues pertinent to MRA for the diagnosis of PE: (1) the diagnostic efficacy and clinical effectiveness for pulmonary MRA relative to CTPA, (2) the different pulmonary MRA techniques used for the detection of PE, (3) guidance for building a clinical service at their institution using MRA and (4) future directions of PE MRA. Our principal aim was to show how pulmonary MRA can be used as a safe, effective modality for the diagnosis of clinically significant PE, particularly for those patients where there are concerns about ionizing radiation or contraindications/allergies to the iodinated contrast material.

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“…Although there is a trade-off between greater speed and a reduction in signal-to-noise ratio (SNR), parallel imaging offers greater flexibility for imaging in the difficult environment of pul-monary vasculature. Since 2004, time-resolved 3D (or 4D) contrast-enhanced MRA has made it possible to increase spatial resolution to the same level as that of contrast-enhanced CTA and improve temporal resolution to less than 5 s by using 3D contrast-enhanced MRA with parallel imaging techniques for not only 1.5 Tesla (T), but also 3.0 T MRI systems (53)(54)(55)(56). Therefore, time-resolved contrast-enhanced MRA is now considered to be one of the best MRI techniques for pulmonary vasculature and lung parenchyma perfusion evaluations of patients with various pulmonary diseases.…”

Section: Basics Of Mri-based Imaging Techniques Time-resolved Contrasmentioning

confidence: 99%

Contrast-enhanced CT- and MRI-based perfusion assessment for pulmonary diseases: basics and clinical applications

Ohno¹,

Koyama²,

Lee³

et al. 2016

Diagn Interv Radiol

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M agnetic resonance imaging (MRI) is a widely used diagnostic tool for breast imaging in daily practice, with its high sensitivity to detect primary, recurrent, and residual breast cancer. Breast MRI serves as a reliable problem-solving tool in case of inconclusive mammography and ultrasonography (US) findings. It can be used to monitor the results of neoadjuvant chemotherapy and it may also contribute to preoperative evaluation of known lesions. With increasing use of MRI, number of breast lesions visible only on MRI and need for MRI-guided breast biopsy have increased (1). Second-look US can also be used for re-evaluation of these lesions; because US-guided biopsy is an easier, cheaper, and faster method if these lesions are visible on second-look US. According to a recently published meta-analysis, lesion detection rates with second-look US are variable in the literature (22.6%-82.1%). Mass lesions and malignant lesions were more likely to be detected at second-look US; average detection rates were 66% for masses, 29% for non-mass-like enhancement (NME) (2, 3). However, focal or NME lesions, which are less detectable than masses on second-look US, require MRI-guided biopsy in the majority of cases. According to the MRI-guided biopsy series in the literature, approximately 25%-35% of these lesions are diagnosed as malignant (4-9).Within this context, the aim of the present study is to assess the effectiveness of MRI-guided 10 Gauge (G) vacuum-assisted breast biopsies (VABB) performed at our institution and to examine the relationship between lesion characteristics and histopathologic results. B R E A S T I MAG I N G O R I G I N A L A R T I C L E PURPOSEWe aimed to assess the effectiveness of magnetic resonance imaging (MRI)-guided vacuum-assisted breast biopsy (VABB), evaluate and compare the characteristics and histopathologic findings of lesions, and overview the follow-up results of benign lesions. METHODSMRI findings and histopathologic results of breast lesions biopsied by MRI-guided VABB between 2013 and 2016 were retrospectively analyzed. MRI findings closely related with malignancy were investigated in particular. Follow-up results of benign lesions were evaluated. RESULTSMRI-guided VABB was applied to 116 lesions of 112 women. Of the lesions, 75 (65%) were benign, while 41 (35%) were malignant. Segmental (94%), clustered (89%), and clustered ring (67%) nonmass-like enhancement patterns were found to be more related with malignancy. False-negative rate of MRI-guided VABB was 12%, underestimation rate was 21%. One of the 54 followed-up benign lesions had a malignant result. CONCLUSION MRI-guided VABB is a reliable method for the diagnosis of breast lesions that are positive only on MRI. Follow-up results show that cancer detection rate is low for radio-pathologically concordant lesions. Further multicenter studies with larger patient population are needed to elucidate these results.You may cite this article as: Taşkın F, Soyder A, Tanyeri A, Öztürk VS, Ünsal A. Lesion characteristics, histopathologic r...

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JOURNAL CLUB: Comparison of Assessment of Preoperative Pulmonary Vasculature in Patients With Non–Small Cell Lung Cancer by Non–Contrast- and 4D Contrast-Enhanced 3-T MR Angiography and Contrast-Enhanced 64-MDCT

Cited by 17 publications

References 36 publications

3D ECG- and respiratory-gated non-contrast-enhanced (CE) perfusion MRI for postoperative lung function prediction in non-small-cell lung cancer patients: A comparison with thin-section quantitative computed tomography, dynamic CE-perfusion MRI, and perfus

3D ECG- and respiratory-gated non-contrast-enhanced (CE) perfusion MRI for postoperative lung function prediction in non-small-cell lung cancer patients: A comparison with thin-section quantitative computed tomography, dynamic CE-perfusion MRI, and perfus

Contrast-enhanced pulmonary MRA for the primary diagnosis of pulmonary embolism: current state of the art and future directions

Contrast-enhanced CT- and MRI-based perfusion assessment for pulmonary diseases: basics and clinical applications

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