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Palma-Chavez J, Pfefer TJ, Agrawal A, Jokerst JV, Vogt WC. Review of consensus test methods in medical imaging and current practices in photoacoustic image quality assessment. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-210176VSSR. [PMID: 34510850 PMCID: PMC8434148 DOI: 10.1117/1.jbo.26.9.090901] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/17/2021] [Indexed: 05/06/2023]
Abstract
SIGNIFICANCE Photoacoustic imaging (PAI) is a powerful emerging technology with broad clinical applications, but consensus test methods are needed to standardize performance evaluation and accelerate translation. AIM To review consensus image quality test methods for mature imaging modalities [ultrasound, magnetic resonance imaging (MRI), x-ray CT, and x-ray mammography], identify best practices in phantom design and testing procedures, and compare against current practices in PAI phantom testing. APPROACH We reviewed scientific papers, international standards, clinical accreditation guidelines, and professional society recommendations describing medical image quality test methods. Observations are organized by image quality characteristics (IQCs), including spatial resolution, geometric accuracy, imaging depth, uniformity, sensitivity, low-contrast detectability, and artifacts. RESULTS Consensus documents typically prescribed phantom geometry and material property requirements, as well as specific data acquisition and analysis protocols to optimize test consistency and reproducibility. While these documents considered a wide array of IQCs, reported PAI phantom testing focused heavily on in-plane resolution, depth of visualization, and sensitivity. Understudied IQCs that merit further consideration include out-of-plane resolution, geometric accuracy, uniformity, low-contrast detectability, and co-registration accuracy. CONCLUSIONS Available medical image quality standards provide a blueprint for establishing consensus best practices for photoacoustic image quality assessment and thus hastening PAI technology advancement, translation, and clinical adoption.
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Affiliation(s)
- Jorge Palma-Chavez
- University of California San Diego, Department of NanoEngineering, La Jolla, California, United States
| | - T. Joshua Pfefer
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
| | - Anant Agrawal
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
| | - Jesse V. Jokerst
- University of California San Diego, Department of NanoEngineering, La Jolla, California, United States
- University of California San Diego, Department of Radiology, La Jolla, California, United States
- University of California San Diego, Materials Science and Engineering Program, La Jolla, California, United States
| | - William C. Vogt
- Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, Maryland, United States
- Address all correspondence to William C. Vogt,
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Choi JI, Jung SE, Kim PN, Cha SH, Jun JK, Lee HY, Park EC. Quality assurance in ultrasound screening for hepatocellular carcinoma using a standardized phantom and standard clinical images: a 3-year national investigation in Korea. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2014; 33:985-995. [PMID: 24866605 DOI: 10.7863/ultra.33.6.985] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVES The purpose of this study was to investigate the quality of ultrasound (US) imaging for hepatocellular carcinoma screening. METHODS The investigation was performed at all medical institutes participating in the National Cancer Screening Program in Korea. For assessment of personnel, we inquired who was performing the US screenings. For phantom image evaluation, the dead zone, vertical and horizontal measurements, axial and lateral resolution, sensitivity, and gray scale/dynamic range were evaluated. For clinical image evaluation, US images of patients were evaluated in terms of the standard images, technical information, overall image quality, appropriateness of depth, foci, annotations, and the presence of any artifacts. RESULTS Failure rates for phantom and clinical image evaluations at general hospitals, smaller hospitals, and private clinics were 20.9%, 24.5%, 24.1% and 5.5%, and 14.8% and 9.5%, respectively. No statistically significant difference was observed in the failure rates for the phantom images among groups of different years of manufacture. For the clinical image evaluation, the results of radiologists were significantly better than those of other professional groups (P = .0001 and .0004 versus nonradiology physicians and nonphysicians, respectively). The failure rate was also higher when the storage format was analog versus digital (P < .001). CONCLUSIONS Approximately 20% of US scanners failed the phantom image evaluation. The year of scanner manufacture was not significantly associated with the results of the phantom image evaluation. The quality of the clinical images obtained by radiologists was the best.
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Affiliation(s)
- Joon-Il Choi
- Department of Radiology, Seoul St Mary's Hospital, School of Medicine, Catholic University of Korea, Seoul, Korea (J.-I.C., S.E.J.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea (P.N.K.); Department of Radiology, Ansan Hospital, College of Medicine, Korea University, Ansan-si, Korea (S.H.C.); National Cancer Control Institute, National Cancer Center, Goyang-si, Korea (J.K.J.); Department of Social Medicine, College of Medicine, Dankook University, Cheonan-si, Korea (H.-Y.L.); and Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea (E.-C.P.)
| | - Seung Eun Jung
- Department of Radiology, Seoul St Mary's Hospital, School of Medicine, Catholic University of Korea, Seoul, Korea (J.-I.C., S.E.J.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea (P.N.K.); Department of Radiology, Ansan Hospital, College of Medicine, Korea University, Ansan-si, Korea (S.H.C.); National Cancer Control Institute, National Cancer Center, Goyang-si, Korea (J.K.J.); Department of Social Medicine, College of Medicine, Dankook University, Cheonan-si, Korea (H.-Y.L.); and Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea (E.-C.P.).
| | - Pyo Nyun Kim
- Department of Radiology, Seoul St Mary's Hospital, School of Medicine, Catholic University of Korea, Seoul, Korea (J.-I.C., S.E.J.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea (P.N.K.); Department of Radiology, Ansan Hospital, College of Medicine, Korea University, Ansan-si, Korea (S.H.C.); National Cancer Control Institute, National Cancer Center, Goyang-si, Korea (J.K.J.); Department of Social Medicine, College of Medicine, Dankook University, Cheonan-si, Korea (H.-Y.L.); and Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea (E.-C.P.)
| | - Sang Hoon Cha
- Department of Radiology, Seoul St Mary's Hospital, School of Medicine, Catholic University of Korea, Seoul, Korea (J.-I.C., S.E.J.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea (P.N.K.); Department of Radiology, Ansan Hospital, College of Medicine, Korea University, Ansan-si, Korea (S.H.C.); National Cancer Control Institute, National Cancer Center, Goyang-si, Korea (J.K.J.); Department of Social Medicine, College of Medicine, Dankook University, Cheonan-si, Korea (H.-Y.L.); and Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea (E.-C.P.)
| | - Jae Kwan Jun
- Department of Radiology, Seoul St Mary's Hospital, School of Medicine, Catholic University of Korea, Seoul, Korea (J.-I.C., S.E.J.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea (P.N.K.); Department of Radiology, Ansan Hospital, College of Medicine, Korea University, Ansan-si, Korea (S.H.C.); National Cancer Control Institute, National Cancer Center, Goyang-si, Korea (J.K.J.); Department of Social Medicine, College of Medicine, Dankook University, Cheonan-si, Korea (H.-Y.L.); and Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea (E.-C.P.)
| | - Hoo-Yeon Lee
- Department of Radiology, Seoul St Mary's Hospital, School of Medicine, Catholic University of Korea, Seoul, Korea (J.-I.C., S.E.J.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea (P.N.K.); Department of Radiology, Ansan Hospital, College of Medicine, Korea University, Ansan-si, Korea (S.H.C.); National Cancer Control Institute, National Cancer Center, Goyang-si, Korea (J.K.J.); Department of Social Medicine, College of Medicine, Dankook University, Cheonan-si, Korea (H.-Y.L.); and Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea (E.-C.P.)
| | - Eun-Cheol Park
- Department of Radiology, Seoul St Mary's Hospital, School of Medicine, Catholic University of Korea, Seoul, Korea (J.-I.C., S.E.J.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea (P.N.K.); Department of Radiology, Ansan Hospital, College of Medicine, Korea University, Ansan-si, Korea (S.H.C.); National Cancer Control Institute, National Cancer Center, Goyang-si, Korea (J.K.J.); Department of Social Medicine, College of Medicine, Dankook University, Cheonan-si, Korea (H.-Y.L.); and Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Korea (E.-C.P.)
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Méndez-Sánchez N, Ridruejo E, Alves de Mattos A, Chávez-Tapia NC, Zapata R, Paraná R, Mastai R, Strauss E, Guevara-Casallas LG, Daruich J, Gadano A, Parise ER, Uribe M, Aguilar-Olivos NE, Dagher L, Ferraz-Neto BH, Valdés-Sánchez M, Sánchez-Avila JF. Latin American Association for the Study of the Liver (LAASL) clinical practice guidelines: management of hepatocellular carcinoma. Ann Hepatol 2014. [PMID: 24998696 DOI: 10.1016/s1665-2681(19)30919-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common cancer in the world and the third most common cause of cancer death, and accounts for 5.6% of all cancers. Nearly 82% of the approximately 550,000 liver cancer deaths each year occur in Asia. In some regions, cancer-related death from HCC is second only to lung cancer. The incidence and mortality of HCC are increasing in America countries as a result of an ageing cohort infected with chronic hepatitis C, and are expected to continue to rise as a consequence of the obesity epidemic. Clinical care and survival for patients with HCC has advanced considerably during the last two decades, thanks to improvements in patient stratification, an enhanced understanding of the pathophysiology of the disease, and because of developments in diagnostic procedures and the introduction of novel therapies and strategies in prevention. Nevertheless, HCC remains the third most common cause of cancer-related deaths worldwide. These LAASL recommendations on treatment of hepatocellular carcinoma are intended to assist physicians and other healthcare providers, as well as patients and other interested individuals, in the clinical decision-making process by describing the optimal management of patients with liver cancer.
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Affiliation(s)
| | - Ezequiel Ridruejo
- Hepatology Section, Department of Medicine. Centro de Educación Médica e Investigaciones Clínicas Norberto Quirno "CEMIC". Ciudad Autónoma de Buenos Aires, Argentina; Hepatology and Liver Transplant Unit. Hospital Universitario Austral, Pilar, Argentina
| | | | | | - Rodrigo Zapata
- Hepatology and Liver Transplantation Unit. University of Chile School of Medicine, German Clinic. Santiago, Chile
| | - Raymundo Paraná
- Associate Professor of School of Medicine - Federal University of Bahia Head of the Gastro-Hepatologist Unit of the University Bahia University Hospital
| | - Ricardo Mastai
- Transplantation Unit. German Hospital.Buenos Aires, Argentina
| | - Edna Strauss
- Clinical hepatologist of Hospital do Coraçao - São Paulo - Brazil. Professor of the Post Graduate Course in the Department of Pathology at the School of Medicine, University of São Paulo
| | | | - Jorge Daruich
- Hepatology Department, Clinical Hospital San Martín. University of Buenos Aires Buenos Aires, Argentina
| | - Adrian Gadano
- Section of Hepatology, Italian Hospital of Buenos Aires. Buenos Aires, Argentina
| | - Edison Roberto Parise
- Professor Associado da Disciplina de Gastroenterologia da Universidade Federal de São Paulo, Presidente Eleito da Sociedade Brasileira de Hepatologia
| | - Misael Uribe
- Digestive Diseases and Obesity Clinic, Medica Sur Clinic Foundation. México City, Mexico
| | - Nancy E Aguilar-Olivos
- Digestive Diseases and Obesity Clinic, Medica Sur Clinic Foundation. México City, Mexico
| | - Lucy Dagher
- Consultant Hepatologist. Metropolitan Policlinic- Caracas- Venezuela
| | - Ben-Hur Ferraz-Neto
- Director of Liver Institute - Beneficencia Portuguesa de São Paulo. Chief of Liver Transplantation Team
| | - Martha Valdés-Sánchez
- Department of Pediatric Oncology National Medical Center "Siglo XXI". Mexico City, Mexico
| | - Juan F Sánchez-Avila
- Hepatology and Liver Transplantation Department National Institute of Nutrition and Medical Sciences "Salvador Zubirán" Mexico City, Mexico
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Lee S, Choi JI, Park MY, Yeo DM, Byun JY, Jung SE, Rha SE, Oh SN, Lee YJ. Intra- and interobserver reliability of gray scale/dynamic range evaluation of ultrasonography using a standardized phantom. Ultrasonography 2014; 33:91-7. [PMID: 24936501 PMCID: PMC4058983 DOI: 10.14366/usg.13021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 12/30/2013] [Indexed: 12/20/2022] Open
Abstract
PURPOSE To evaluate intra- and interobserver reliability of the gray scale/dynamic range of the phantom image evaluation of ultrasonography using a standardized phantom, and to assess the effect of interactive education on the reliability. METHODS Three radiologists (a resident, and two board-certified radiologists with 2 and 7 years of experience in evaluating ultrasound phantom images) performed the gray scale/dynamic range test for an ultrasound machine using a standardized phantom. They scored the number of visible cylindrical structures of varying degrees of brightness and made a 'pass or fail' decision. First, they scored 49 phantom images twice from a 2010 survey with limited knowledge of phantom images. After this, the radiologists underwent two hours of interactive education for the phantom images and scored another 91 phantom images from a 2011 survey twice. Intra- and interobserver reliability before and after the interactive education session were analyzed using K analyses. RESULTS Before education, the K-value for intraobserver reliability for the radiologist with 7 years of experience, 2 years of experience, and the resident was 0.386, 0.469, and 0.465, respectively. After education, the K-values were improved (0.823, 0.611, and 0.711, respectively). For interobserver reliability, the K-value was also better after the education for the 3 participants (0.067, 0.002, and 0.547 before education; 0.635, 0.667, and 0.616 after education, respectively). CONCLUSION The intra- and interobserver reliability of the gray scale/dynamic range was fair to substantial. Interactive education can improve reliability. For more reliable results, double- checking of phantom images by multiple reviewers is recommended.
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Affiliation(s)
- Song Lee
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Joon-Il Choi
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Michael Yong Park
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Dong Myung Yeo
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jae Young Byun
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seung Eun Jung
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sung Eun Rha
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Soon Nam Oh
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Young Joon Lee
- Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
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