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Audit of diagnosis of Lung Cancer on Chest Radiography
EP29176
Poster Title: Audit of diagnosis of Lung Cancer on Chest Radiography
Submitted on 14 Sep 2018
Author(s): Konstantina Boulougouri, Renu Gupta
Affiliations: Lewisham & Greenwich NHS Trust, Queen Elizabeth Hospital
This poster was presented at BIR
Poster Views: 329
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Poster Information
Abstract: Background/ Target
The literature reveals a wide range of missed lung cancer rates on Chest Radiographs.
We did this audit to compare our department’s accuracy in Lung cancer diagnosis on Chest Radiographs to the RCR standards set in 2005.
Standard 1:Lesion should be identified in > 75% of CXR within 1yr of diagnosis
Standard 2 :Report –further investigations recommended in >95% of cases

Methods
All the patients with verified Lung /Pleura Cancer diagnosis in 2016 in our hospital were identified from the MDT register (total: 228 pts). The patients who had Chest Radiographs within 1 year prior to the referral to the Specialist Clinicians or MDT were included (166 pts). The CXRs that were reported on a later date from CT Chest (total: 17) were excluded.
The remaining CXRs were reviewed by 2 consultant radiologists and were classified according to the agreed error categories:
A: Appropriate reports: Lesion identified.
B: Appropriate reports: Lesion identified as indeterminate (not as malignant). Appropriate further
Investigation or follow up suggested.
C: Non-specific reports: Lesion identified as indeterminate (not as malignant). No follow up suggested.
D: Missed cancers: Lesion not identified.
E: Examination not reported by the Radiology Department
The CXRs classified as D were then reviewed by both Radiologists. The CXRs concluded not to show a visible lesion on review were also excluded from further analysis.
Results
A total of 212 Chest X-rays were analyzed.
A: Appropriate reports: Lesion identified: 74 (35%)
B: Appropriate reports: Lesion identified as indeterminate (not as malignant). Appropriate further investigation or follow up suggested : 58 (27%)
C: Non-specific reports: Lesion identified as indeterminate (not as malignant). No follow up suggested: 49 (23%)
D: Missed cancers: Lesion not identified: 31 (15%)
E: Examination not reported by the Radiology Department : 0%
The CXRs with missed lesions were categorized according to site and other contributing factors such as coexisting pathology and film quality. A significant number of lesions were missed in the perihilar regions and in the upper zones (Total 84% )

Discussion
The department met both the targets set by the RCR standards. There is however concern about the significant percentage of Radiographs with indeterminate findings with no suggestion for follow up (23%) that may contribute to delayed diagnosis. The emphasis should be on creating robust pathways to fast track and secure the timely communication of the results and on increasing staff awareness. The reporting Radiologists and Radiographers should be reminded to always check well recognised ‘review’ areas and to be extra-careful when comparing CXRs with pre - existing pathology that can both ‘camouflage’ the pathology but also result in ‘satisfaction of search’ type of observational errors.
Re - audit in 24 months.
Summary: We performed a departmental audit to compare our reporting accuracy in diagnosing Lung Cancer on Chest Radiography to the standards set by the RCR National audit in 2005Report abuse »
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