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Shozo Ohsumi - One of the best experts on this subject based on the ideXlab platform.
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Breast Biopsy for mammographically detected nonpalpable lesions using a vacuum-assisted Biopsy Device (Mammotome) and upright-type stereotactic mammography unit without a digital imaging system: experience of 500 biopsies
Breast Cancer, 2014Co-Authors: Shozo Ohsumi, Naruto Taira, Daisuke Takabatake, Seiki Takashima, Fumikata Hara, Mina Takahashi, Sachiko Kiyoto, Kenjiro Aogi, Rieko NishimuraAbstract:Background The most common diagnostic procedure in the United States for mammographically detected nonpalpable lesions is a combination of a vacuum-assisted Biopsy Device and a prone-type Biopsy table. We have used an upright-type stereotactic mammography unit without a digital imaging system instead of the prone table. Patients and methods Five-hundred ten biopsies of 506 mammographically detected nonpalpable breast lesions in 488 patients, consisting of 445 lesions with microcalcifications alone, 39 masses without calcifications, and 22 with both masses and microcalcifications, were attempted using a combination of a vacuum-assisted Device (Mammotome) and an upright unit without a digital imaging system in a sitting position between May 1999 and February 2007. Results Breast tissue was obtained in 497 biopsies. Microcalcifications were confirmed radiographically in the tissue of 447 out of 459 biopsies from lesions with microcalcifications (97.4 %). One hundred thirty-seven were diagnosed as malignant, 10 as atypical ductal hyperplasia, 345 as benign, and 1 was not diagnosable. The underestimation rate was 28.0 %. Overall, 26 patients (5.1 %) had vasovagal reactions, while 19 (3.8 %) experienced mild subcutaneous bleeding. Two hundred fifty of 350 lesions, for which Biopsy diagnoses were benign, were followed for a median period of 33 months. Four lesions turned out to be malignant. The false-negative rate was 2.8 %. Conclusion The Biopsy technique using the combination of the Mammotome and an upright unit without a digital imaging system is cost-effective, safe, and accurate, and should be regarded as one of the standard Biopsy methods for mammographically detected nonpalpable lesions.
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Breast Biopsy for mammographically detected nonpalpable lesions using a vacuum-assisted Biopsy Device (Mammotome) and upright-type stereotactic mammography unit without a digital imaging system: experience of 500 biopsies
Breast Cancer, 2012Co-Authors: Shozo Ohsumi, Naruto Taira, Daisuke Takabatake, Seiki Takashima, Fumikata Hara, Mina Takahashi, Sachiko Kiyoto, Kenjiro Aogi, Rieko NishimuraAbstract:Background The most common diagnostic procedure in the United States for mammographically detected nonpalpable lesions is a combination of a vacuum-assisted Biopsy Device and a prone-type Biopsy table. We have used an upright-type stereotactic mammography unit without a digital imaging system instead of the prone table.
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Breast Biopsy for Mammographically Detected Non-palpable Lesions Using a Vacuum-assisted Biopsy Device (Mammotome) and an Upright-type Stereotactic Mammography Unit
Japanese Journal of Clinical Oncology, 2001Co-Authors: Shozo Ohsumi, Kenjiro Aogi, Shigemitsu Takashima, Masahiro Ishizaki, Koichi MandaiAbstract:Background: It is planned to start screening mammography throughout Japan in the near future. However, a minimally invasive Biopsy procedure for mammographically detected nonpalpable breast lesions is not available in almost all Japanese hospitals. It is crucial to develop a useful minimally invasive Biopsy method which can be applied without difficulty. Methods: Eighty-nine biopsies for 88 mammographically detected non-palpable breast lesions, consisting of 70 lesions with microcalcifications alone, eight masses without calcifications and 10 with both masses and microcalcifications, were performed using the combination of a vacuum-assisted Biopsy Device (Mammotome) and an upright-type stereotactic mammography unit. Results: Microcalcifications were confirmed radiographically in the tissue obtained from 78 biopsies among 81 biopsies for the lesions with microcalcifications (96.3%). All the lesions without calcifications were considered to be biopsied successfully. Five patients complained of nausea or fainted during the localization or Biopsy procedure and an additional patient suffered from hyperventilation syndrome. Five cases experienced mild subcutaneous bleeding in the breasts. Conclusions: The Biopsy technique using the combination of a vacuum-assisted Biopsy Device and an upright-type stereotactic mammography unit is a cost-effective, safe and very useful method for mammographically detected non-palpable breast lesions. It is expected to be a standard method of Biopsy for such lesions in many developed countries other than the USA. However, it is important to make the patients relaxed during the Biopsy to prevent mental strain.
Rieko Nishimura - One of the best experts on this subject based on the ideXlab platform.
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Breast Biopsy for mammographically detected nonpalpable lesions using a vacuum-assisted Biopsy Device (Mammotome) and upright-type stereotactic mammography unit without a digital imaging system: experience of 500 biopsies
Breast Cancer, 2014Co-Authors: Shozo Ohsumi, Naruto Taira, Daisuke Takabatake, Seiki Takashima, Fumikata Hara, Mina Takahashi, Sachiko Kiyoto, Kenjiro Aogi, Rieko NishimuraAbstract:Background The most common diagnostic procedure in the United States for mammographically detected nonpalpable lesions is a combination of a vacuum-assisted Biopsy Device and a prone-type Biopsy table. We have used an upright-type stereotactic mammography unit without a digital imaging system instead of the prone table. Patients and methods Five-hundred ten biopsies of 506 mammographically detected nonpalpable breast lesions in 488 patients, consisting of 445 lesions with microcalcifications alone, 39 masses without calcifications, and 22 with both masses and microcalcifications, were attempted using a combination of a vacuum-assisted Device (Mammotome) and an upright unit without a digital imaging system in a sitting position between May 1999 and February 2007. Results Breast tissue was obtained in 497 biopsies. Microcalcifications were confirmed radiographically in the tissue of 447 out of 459 biopsies from lesions with microcalcifications (97.4 %). One hundred thirty-seven were diagnosed as malignant, 10 as atypical ductal hyperplasia, 345 as benign, and 1 was not diagnosable. The underestimation rate was 28.0 %. Overall, 26 patients (5.1 %) had vasovagal reactions, while 19 (3.8 %) experienced mild subcutaneous bleeding. Two hundred fifty of 350 lesions, for which Biopsy diagnoses were benign, were followed for a median period of 33 months. Four lesions turned out to be malignant. The false-negative rate was 2.8 %. Conclusion The Biopsy technique using the combination of the Mammotome and an upright unit without a digital imaging system is cost-effective, safe, and accurate, and should be regarded as one of the standard Biopsy methods for mammographically detected nonpalpable lesions.
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Breast Biopsy for mammographically detected nonpalpable lesions using a vacuum-assisted Biopsy Device (Mammotome) and upright-type stereotactic mammography unit without a digital imaging system: experience of 500 biopsies
Breast Cancer, 2012Co-Authors: Shozo Ohsumi, Naruto Taira, Daisuke Takabatake, Seiki Takashima, Fumikata Hara, Mina Takahashi, Sachiko Kiyoto, Kenjiro Aogi, Rieko NishimuraAbstract:Background The most common diagnostic procedure in the United States for mammographically detected nonpalpable lesions is a combination of a vacuum-assisted Biopsy Device and a prone-type Biopsy table. We have used an upright-type stereotactic mammography unit without a digital imaging system instead of the prone table.
Mary C. Mahoney - One of the best experts on this subject based on the ideXlab platform.
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initial clinical experience with a new mri vacuum assisted breast Biopsy Device
Journal of Magnetic Resonance Imaging, 2008Co-Authors: Mary C. MahoneyAbstract:Purpose To report initial clinical experience with a new previously unreported vacuum-assisted Device (EnCor MR, SenoRx, Aliso Viejo, CA) for magnetic resonance imaging (MRI)-guided breast Biopsy and to compare this Device with previously reported technologies. Materials and Methods A prospective study of MRI-guided vacuum-assisted breast biopsies using the EnCor Device was undertaken. Lesions targeted for Biopsy were occult on mammography, ultrasound, and physical examination. Histologic results were obtained for all cases. Patients with benign, concordant results underwent clinical and imaging follow-up. Cases with discordant, high-risk, or malignant results were referred for surgical Biopsy. Results A total of 55 biopsies were performed in 47 patients. All biopsies were technically successful. Histologic results yielded malignancy in 10 (10/55, 18%) of the 55 lesions and high-risk or atypical lesions in 7 (7/55, 13%) of the cases. All of these patients have had surgical follow-up, with four (4/55, 7%) underestimations. There were three (3/55, 5%) discordant cases. 35 (35/55, 64%) lesions yielded benign concordant results. Of these, six (6/35, 17%) lesions were removed surgically, with confirmation of the MR-guided Biopsy results. Twenty (20/35, 57%) lesions have undergone at least 6-month follow-up MRI, with resolution or stability of the MRI findings. Conclusion The EnCor breast Biopsy Device has comparable results to those previously reported for other MRI-guided vacuum-assisted technologies. J. Magn. Reson. Imaging 2008;28:900–905. © 2008 Wiley-Liss, Inc.
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Initial clinical experience with a new MRI vacuum‐assisted breast Biopsy Device
Journal of Magnetic Resonance Imaging, 2008Co-Authors: Mary C. MahoneyAbstract:Purpose To report initial clinical experience with a new previously unreported vacuum-assisted Device (EnCor MR, SenoRx, Aliso Viejo, CA) for magnetic resonance imaging (MRI)-guided breast Biopsy and to compare this Device with previously reported technologies. Materials and Methods A prospective study of MRI-guided vacuum-assisted breast biopsies using the EnCor Device was undertaken. Lesions targeted for Biopsy were occult on mammography, ultrasound, and physical examination. Histologic results were obtained for all cases. Patients with benign, concordant results underwent clinical and imaging follow-up. Cases with discordant, high-risk, or malignant results were referred for surgical Biopsy. Results A total of 55 biopsies were performed in 47 patients. All biopsies were technically successful. Histologic results yielded malignancy in 10 (10/55, 18%) of the 55 lesions and high-risk or atypical lesions in 7 (7/55, 13%) of the cases. All of these patients have had surgical follow-up, with four (4/55, 7%) underestimations. There were three (3/55, 5%) discordant cases. 35 (35/55, 64%) lesions yielded benign concordant results. Of these, six (6/35, 17%) lesions were removed surgically, with confirmation of the MR-guided Biopsy results. Twenty (20/35, 57%) lesions have undergone at least 6-month follow-up MRI, with resolution or stability of the MRI findings. Conclusion The EnCor breast Biopsy Device has comparable results to those previously reported for other MRI-guided vacuum-assisted technologies. J. Magn. Reson. Imaging 2008;28:900–905. © 2008 Wiley-Liss, Inc.
Kenjiro Aogi - One of the best experts on this subject based on the ideXlab platform.
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Breast Biopsy for mammographically detected nonpalpable lesions using a vacuum-assisted Biopsy Device (Mammotome) and upright-type stereotactic mammography unit without a digital imaging system: experience of 500 biopsies
Breast Cancer, 2014Co-Authors: Shozo Ohsumi, Naruto Taira, Daisuke Takabatake, Seiki Takashima, Fumikata Hara, Mina Takahashi, Sachiko Kiyoto, Kenjiro Aogi, Rieko NishimuraAbstract:Background The most common diagnostic procedure in the United States for mammographically detected nonpalpable lesions is a combination of a vacuum-assisted Biopsy Device and a prone-type Biopsy table. We have used an upright-type stereotactic mammography unit without a digital imaging system instead of the prone table. Patients and methods Five-hundred ten biopsies of 506 mammographically detected nonpalpable breast lesions in 488 patients, consisting of 445 lesions with microcalcifications alone, 39 masses without calcifications, and 22 with both masses and microcalcifications, were attempted using a combination of a vacuum-assisted Device (Mammotome) and an upright unit without a digital imaging system in a sitting position between May 1999 and February 2007. Results Breast tissue was obtained in 497 biopsies. Microcalcifications were confirmed radiographically in the tissue of 447 out of 459 biopsies from lesions with microcalcifications (97.4 %). One hundred thirty-seven were diagnosed as malignant, 10 as atypical ductal hyperplasia, 345 as benign, and 1 was not diagnosable. The underestimation rate was 28.0 %. Overall, 26 patients (5.1 %) had vasovagal reactions, while 19 (3.8 %) experienced mild subcutaneous bleeding. Two hundred fifty of 350 lesions, for which Biopsy diagnoses were benign, were followed for a median period of 33 months. Four lesions turned out to be malignant. The false-negative rate was 2.8 %. Conclusion The Biopsy technique using the combination of the Mammotome and an upright unit without a digital imaging system is cost-effective, safe, and accurate, and should be regarded as one of the standard Biopsy methods for mammographically detected nonpalpable lesions.
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Breast Biopsy for mammographically detected nonpalpable lesions using a vacuum-assisted Biopsy Device (Mammotome) and upright-type stereotactic mammography unit without a digital imaging system: experience of 500 biopsies
Breast Cancer, 2012Co-Authors: Shozo Ohsumi, Naruto Taira, Daisuke Takabatake, Seiki Takashima, Fumikata Hara, Mina Takahashi, Sachiko Kiyoto, Kenjiro Aogi, Rieko NishimuraAbstract:Background The most common diagnostic procedure in the United States for mammographically detected nonpalpable lesions is a combination of a vacuum-assisted Biopsy Device and a prone-type Biopsy table. We have used an upright-type stereotactic mammography unit without a digital imaging system instead of the prone table.
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Breast Biopsy for Mammographically Detected Non-palpable Lesions Using a Vacuum-assisted Biopsy Device (Mammotome) and an Upright-type Stereotactic Mammography Unit
Japanese Journal of Clinical Oncology, 2001Co-Authors: Shozo Ohsumi, Kenjiro Aogi, Shigemitsu Takashima, Masahiro Ishizaki, Koichi MandaiAbstract:Background: It is planned to start screening mammography throughout Japan in the near future. However, a minimally invasive Biopsy procedure for mammographically detected nonpalpable breast lesions is not available in almost all Japanese hospitals. It is crucial to develop a useful minimally invasive Biopsy method which can be applied without difficulty. Methods: Eighty-nine biopsies for 88 mammographically detected non-palpable breast lesions, consisting of 70 lesions with microcalcifications alone, eight masses without calcifications and 10 with both masses and microcalcifications, were performed using the combination of a vacuum-assisted Biopsy Device (Mammotome) and an upright-type stereotactic mammography unit. Results: Microcalcifications were confirmed radiographically in the tissue obtained from 78 biopsies among 81 biopsies for the lesions with microcalcifications (96.3%). All the lesions without calcifications were considered to be biopsied successfully. Five patients complained of nausea or fainted during the localization or Biopsy procedure and an additional patient suffered from hyperventilation syndrome. Five cases experienced mild subcutaneous bleeding in the breasts. Conclusions: The Biopsy technique using the combination of a vacuum-assisted Biopsy Device and an upright-type stereotactic mammography unit is a cost-effective, safe and very useful method for mammographically detected non-palpable breast lesions. It is expected to be a standard method of Biopsy for such lesions in many developed countries other than the USA. However, it is important to make the patients relaxed during the Biopsy to prevent mental strain.
P Schneider - One of the best experts on this subject based on the ideXlab platform.
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multicenter study for the evaluation of a dedicated Biopsy Device for mr guided vacuum Biopsy of the breast
European Radiology, 2002Co-Authors: C Perlet, A Heinig, X Prat, J Casselman, Lars Baath, H Sittek, C Stets, J M Lamarque, I Anderson, P SchneiderAbstract:The purpose of this multicenter study was to determine the accuracy and clinical value of a dedicated breast Biopsy system which allows for MR-guided vacuum Biopsy (VB) of contrast-enhancing lesions. In five European centers, MR-guided 11-gauge VB was performed on 341 lesions. In 7 cases VB was unsuccessful. This was immediately realized on postinterventional images or direct follow-up combined with histopathology-imaging correlation; thus, a false-negative diagnosis was avoided. Histology of 334 successful biopsies yielded 84 (25%) malignancies, 17 (5%) atypical ductal hyperplasias, and 233 (70%) benign entities. Verification of malignant or borderline lesions included reexcision of the Biopsy cavity. Benign histologic Biopsy results were verified by retrospective correlation with the pre- and postinterventional MRI and by subsequent follow-up. Our results indicate that MR-guided VB, in combination with the dedicated Biopsy coil, offers the possibility to accurately diagnose even very small lesions that can only be visualized or localized by MRI.