{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T12:23:10Z","timestamp":1788870190682,"version":"build-2803163510"},"reference-count":10,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2009,10,7]],"date-time":"2009-10-07T00:00:00Z","timestamp":1254873600000},"content-version":"vor","delay-in-days":36,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003761","name":"Universitair Medisch Centrum Utrecht","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003761","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2009,9]]},"abstract":"<jats:p>The quality assurance (QA) of radiographic images based on the operating conditions of X\u2010ray equipment is essential for good image quality, accurate medical diagnostics and for the prevention of health professionals and patients to unnecessary doses of ionizing radiation. This paper presents a historical analysis of 1,635 Quality Assurance Technical Reports of Health Institutions in the state of S\u00e3o Paulo, Brazil, over a seven\u2010year period. Based on acceptable limits for variations between nominal and measured parameters as the variable to determine the quality of X\u2010ray equipment operating conditions, a significant improvement was found in the percentage of acceptance of the overall parameters described in the QA technical reports over this period. As expected, we found a strong concentration in the categories of conventional and portable X\u2010ray equipment, which represent 72% and 84%, respectively, of the total number of equipments. A mechanical parameter such as half\u2010value layer (HVL), which is important not only for image quality but also for radiation protection, showed significant improvements. Again, only 58% of portable X\u2010ray equipment showed HVL values recommended for 80 kVp (above 2.3 mm Al), a percentage that improved to 76% in 2006. With regard to mammographers, which are newer machines, all the analyzed systems presented acceptable HVL values. Conventional X\u2010ray machines showed an increase of this conformity index from 89% in 2000 to 94% in 2006. All this improvement was attributed to the continuous and extensive enforcement of Regulation Act 453 in the state of S\u00e3o Paulo. The improvement in equipment quality control standards is expected to result in the improvement of diagnostic quality, as well as in the reduction of exam repetitions, and thereby reducing the patient's exposure to radiation.<\/jats:p>\n                  <jats:p>PACS number: 87.57.C<\/jats:p>","DOI":"10.1120\/jacmp.v10i4.3007","type":"journal-article","created":{"date-parts":[[2009,11,16]],"date-time":"2009-11-16T10:20:21Z","timestamp":1258366821000},"page":"252-259","source":"Crossref","is-referenced-by-count":3,"title":["Evolution of X\u2010ray machine quality control acceptance indices"],"prefix":"10.1002","volume":"10","author":[{"given":"Maria Lucia Nana I","family":"Ebisawa","sequence":"first","affiliation":[{"name":"Universidade de Mogi das Cruzes  Mogi das Cruzes, S\u00e3o Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"de Fatima A Magon","sequence":"additional","affiliation":[{"name":"Sapra Landauer  S\u00e3o Carlos S\u00e3o Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yvone M","family":"Mascarenhas","sequence":"additional","affiliation":[{"name":"Sapra Landauer  S\u00e3o Carlos S\u00e3o Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2009,10,7]]},"reference":[{"key":"e_1_2_7_2_1","volume-title":"International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources","year":"1996"},{"issue":"2","key":"e_1_2_7_3_1","first-page":"104","article-title":"Accreditation of diagnostic imaging services in developing countries","volume":"20","author":"Jimenez P","year":"2006","journal-title":"Pan American Journal of Public Health"},{"key":"e_1_2_7_4_1","volume-title":"Portaria n. 453 de 01 de junho de 1998 \u2013 Diretrizes de Prote\u00e7\u00e3o Radio\u2010l\u00f3gica em Radiodiagn\u00f3stico M\u00e9dico e Odontol\u00f3gico","author":"Secretaria de Vigil\u00e2ncia Sanit\u00e1ria (SVS).","year":"1998"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1118\/1.596904"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/rpd\/ncn033"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1118\/1.3013604"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacr.2005.06.002"},{"key":"e_1_2_7_9_1","doi-asserted-by":"crossref","unstructured":"EbisawaMLN MagonMFA HornosYM.Compara\u00e7\u00e3o das curvas sensitom\u00e9tricas dos anos: 2000 2002 e 2004 de institui\u00e7\u00f5es de Sa\u00fade do Estado de S\u00e3o Paulo. In:Anais do IV Congresso Latino\u2010Americano de Engenharia Biom\u00e9dica Isla Margarita Venezuela 24\u201328 set.2007. Available from:http:\/\/www.springerlink.com\/content\/p66g101840470gp6\/","DOI":"10.1007\/978-3-540-74471-9_194"},{"key":"e_1_2_7_10_1","unstructured":"Instituto Brasileiro de Geografa e Estat\u00edstica (IBGE).Proje\u00e7\u00e3o da Popula\u00e7\u00e3o do Brasil:1980\u20132050.2008[on\u2010line version]. Available from:http:\/\/www.ibge.gov.br"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1590\/S0100-39842005000500008"}],"container-title":["Journal of Applied Clinical Medical Physics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1120%2Fjacmp.v10i4.3007","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1120%2Fjacmp.v10i4.3007","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/aapm.onlinelibrary.wiley.com\/doi\/pdf\/10.1120\/jacmp.v10i4.3007","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,5]],"date-time":"2023-10-05T17:25:43Z","timestamp":1696526743000},"score":1,"resource":{"primary":{"URL":"https:\/\/aapm.onlinelibrary.wiley.com\/doi\/10.1120\/jacmp.v10i4.3007"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,9]]},"references-count":10,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2009,9]]}},"alternative-id":["10.1120\/jacmp.v10i4.3007"],"URL":"https:\/\/doi.org\/10.1120\/jacmp.v10i4.3007","archive":["Portico"],"relation":{},"ISSN":["1526-9914","1526-9914"],"issn-type":[{"value":"1526-9914","type":"print"},{"value":"1526-9914","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,9]]}}}