Phantom development for radiographic image optimization of chest, skull and pelvis examination for nonstandard patient

Pina, Diana Rodrigues de; Duarte, S. B.; Netto, Thomaz Ghilardi; Morceli, José

doi:10.1016/j.apradiso.2008.07.018

Cited by 7 publications

(11 citation statements)

References 18 publications

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“…1,2,12 The four Lucite slabs were arranged in two pairs with an air gap between them, simulating the lung [see…”

Section: Resultsmentioning

confidence: 99%

“…The hnv i i value obtained directly from the segmentation process was used in place of the value in Eq. (2). The result was compared with the same tissue volume of the patient image obtained by using the Gaussian fitting method [i.e., by applying Eqs.…”

Section: Resultsmentioning

confidence: 99%

“…1,2,6 However, the development of homogeneous plate phantoms in the literature has focused exclusively on adult patients. 1,2,6,7 The development of homogeneous plate phantoms for infant patients remains unexplored. The ultimate goal of our research is to generate a homogeneous plate for constructing an infant chest phantom in the posterior-anterior or anterior-posterior (PA/AP) view.…”

Section: Introductionmentioning

confidence: 99%

“…Homogeneous plate phantoms are important tools in radiology that help to establish optimized techniques and to ensure maximal image quality with as low as reasonably achievable (ALARA) doses. 1,2,6 However, the development of homogeneous plate phantoms in the literature has focused exclusively on adult patients. 1,2,6,7 The development of homogeneous plate phantoms for infant patients remains unexplored.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of biological tissues in infant chest for the development of an equivalent radiographic phantom

et al. 2012

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To our knowledge, this report represents the first demonstration of an infant chest phantom dedicated to the radiology of children younger than one year. This phantom is a key element in the development of clinical charts for optimizing radiographic technique in pediatric patients. Optimization procedures for nonstandard patients were reported previously [Pina et al., Phys. Med. Biol. 49, N215-N226 (2004) and Pina et al., Appl. Radiat. Isot. 67, 61-69 (2009)]. The constructed phantom represents a starting point to obtain radiologic protocols for the infant patient.

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“…1,2,12 The four Lucite slabs were arranged in two pairs with an air gap between them, simulating the lung [see…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of biological tissues in infant chest for the development of an equivalent radiographic phantom

et al. 2012

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“…Homogeneous phantoms are important tools to establish optimized techniques [6][7][8][9], especially in medical departments with restricted resources, which can easily simulate realistic anatomical regions [10]. Two homogeneous phantoms are currently used: LucAl phantom (which provides accurate simulation of primary and scatter transmission through the lung field) [11] and patient equivalent phantom (PEP; also known as the ANSI phantom [6,10,12] for the chest, skull, and extremities). The PEP is lightweight and transportable.…”

Section: Introductionmentioning

confidence: 99%

Construction of pediatric homogeneous phantoms for optimization of chest and skull radiographs

Alves

Miranda

Neto

et al. 2015

European Journal of Radiology

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Construction and validation of a low cost paediatric pelvis phantom

Ali

Hogg

Johansen

et al. 2018

European Journal of Radiology

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PURPOSE: Imaging phantoms can be cost prohibitive, therefore a need exists to produce low cost alternatives which are fit for purpose. This paper describes the development and validation of a low cost paediatric pelvis phantom based on the anatomy of a 5-year-old child. METHODS: Tissue equivalent materials representing paediatric bone (Plaster of Paris; PoP) and soft tissue (Poly methyl methacrylate; PMMA) were used. PMMA was machined to match the bony anatomy identified from a CT scan of a 5-year-old child and cavities were created for infusing the PoP. Phantom validation comprised physical and visual measures. Physical included CT density comparison between a CT scan of a 5-year old child and the phantom and Signal to Noise Ratio (SNR) comparative analysis of anteroposterior phantom X-ray images against a commercial anthropomorphic phantom. Visual analysis using a psychometric image quality scale (face validity). RESULTS: CT density, the percentage difference between cortical bone, soft tissue and their equivalent tissue substitutes were-4.7 to-4.1% and-23.4%, respectively. For SNR, (mAs response) there was a strong positive correlation between the two phantoms (r>0.95 for all kVps). For kVp response, there was a strong positive correlation between 1 and 8 mAs (r=0.85), this then decreased as mAs increased (r=-0.21 at 20 mAs). Psychometric scale results produced a Cronbach's Alpha of almost 0.8. CONCLUSIONS: Physical and visual measures suggest our low-cost phantom has suitable anatomical characteristics for X-ray imaging. Our phantom could have utility in dose and image quality optimisation studies.

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Phantom development for radiographic image optimization of chest, skull and pelvis examination for nonstandard patient

Cited by 7 publications

References 18 publications

Analysis of biological tissues in infant chest for the development of an equivalent radiographic phantom

Analysis of biological tissues in infant chest for the development of an equivalent radiographic phantom

Construction of pediatric homogeneous phantoms for optimization of chest and skull radiographs

Construction and validation of a low cost paediatric pelvis phantom

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