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Biomedical subjects

J R Pilling

Publications and source records attributed to J R Pilling.

8 recordsLinked to original sources
PubMed2006

Assessment of reproducibility and accuracy in templating hybrid total hip arthroplasty using digital radiographs.

In 20 patients undergoing hybrid total hip arthroplasty, the reproducibility and accuracy of templating using digital radiographs were assessed. Digital images were manipulated using either a ten-pence coin as a marker to scale for magnification, or two digital-line methods using computer software. On-screen images were templated with standard acetate templates and compared with templating performed on hard-copy digital prints. The digital-line methods were the least reliable and accuracy of sizing compared with the inserted prostheses varied between -1.6% and +10.2%. The hard-copy radiographs showed better reproducibility than the ten-pence coin method, but were less accurate with 3.7% undersizing. The ten-pence coin method was the most accurate, with no significant differences for offset or acetabulum, and undersizing of only 0.9%. On-screen templating of digital radiographs with standard acetate templates is accurate and reproducible if a radiopaque marker such as a ten-pence coin is included when the original radiograph is taken.

Acetabulum↗
PubMed2003

Picture archiving and communication systems: the users' view.

A study was undertaken to assess the acceptability to users of a Picture Archiving and Communication System (PACS). A questionnaire was issued to 208 users. Some questions required a graduated score in response and others a free text response. 101 responses were received from a cross section of hospital staff. The majority of users judged PACS to be a major advance for the hospital, with high quality images, less frustration than using film and an improvement in their working lives. They judged that it had made a positive change in their working practices and had met their expectations. They welcomed the access it gave them to Radiology reports. There was more ambivalence about the impact it had made to the efficiency of clinic consultations and the conduct of ward rounds. Free text responses were made concerning the benefits and disadvantages of PACS. Analysis of these demonstrated many more benefits than disadvantages. The Radiology department has been enabled to address the concerns of staff raised through the questionnaire, and has been encouraged by the positive responses. PACS has been accepted well by a wide cross section of hospital staff. It has improved their working lives and made a major contribution to the working of the hospital as a whole.

Attitude of Health Personnel↗
PubMed2002

Lessons learned from a whole hospital PACS installation. Picture Archiving and Communication System.

The Norfolk and Norwich University Hospital has incorporated a fully filmless Picture Archiving and Communication System (PACS) as part of a new hospital provision using PFI funding. The PACS project has been very successful and has met with unanimous acclaim from radiologists and clinicians. A project of this size cannot be achieved without learning some lessons from mistakes and recognising areas where attention to detail resulted in a successful implementation. This paper considers the successes and problems encountered in a large PACS installation.

England↗
PubMed1990

Bronchoscopic and bronchographic findings in 12 patients with sarcoidosis and severe or progressive airways obstruction.

Twelve patients (8 men), aged 33-67 (mean 49) years, with histologically proved sarcoidosis underwent bronchoscopy. All had symptoms, signs (wheeze in 11, high pitched inspiratory "squeaks" in six, stridor in three), and physiological abnormalities characteristic of severe or worsening airways obstruction. Eleven patients also underwent bronchography. At the time of bronchoscopy four patients had stage II, one stage III, and seven stage IV sarcoidosis. All patients had a peak expiratory flow (PEF) of 70% predicted or less and a maximum expiratory flow at 50% (MEF50) and 25% (MEF25) of vital capacity below 35% predicted. The ratio of their forced expiratory volume in one second to forced vital capacity (FEV1/FVC) ranged from 37% to 65%. Fibreoptic bronchoscopy showed single or multiple areas of segmental bronchial stenoses in 10 patients, two of whom had stenotic webs. Bronchography showed that the sites and severity of stenoses were more widespread than suspected from the bronchoscopic findings. Five of the 11 patients undergoing bronchography had bronchiectasis, which was restricted to the upper lobes in three and a lower lobe in one and affected both upper and lower lobes in one patient. The bronchiectasis had not been suspected or diagnosed from the chest radiography or the bronchoscopy.

Adult↗
PubMed1984

Percutaneous Trucut lung biopsy in the diagnosis of localised pulmonary lesions.

In a prospective evaluation of percutaneous Trucut needle biopsy for localised intrathoracic lesions in 89 patients histological specimens were obtained in 81. Malignancy was diagnosed in 66 cases. Subsequently definitive histological reports were available in 18 of these patients with complete concordance of malignant cell type. Sixteen patients had non-malignant histological appearances, which were later confirmed objectively in six. In three patients there was no follow up information, but in the remainder the clinical course was entirely consistent with the histological appearances of the biopsy specimens. Adequate specimens were obtained from only two of the five lesions less than 2 cm in diameter. Lesions deeper than 8 cm from the site of biopsy were associated with significantly more haemorrhagic complications than more superficial lesions. Comparison with other series indicates that Trucut needle biopsy which produces histological specimens has greater diagnostic accuracy than cytological techniques for both malignant and non-malignant localised lesions. It is concluded that this technique has a definite place in the investigation of this common problem in carefully selected patients provided that strict attention is paid to the details of the technique.

Adult↗
PubMed1979

Water soluble radiculography in the erect posture: a clinico-radiological study.

A technique for water-soluble radiculography is described involving radiography in the standing and stooping positions. Seventy-eight radiculograms have been reviewed and correlated with clinical and operative findings. Thirty patients had an anterior thecal deformity demonstrated on radiographs exposed in the standing position, which was not completely reduced in the stooping position. Twenty-eight of these patients underwent operation and in 25 patients a disc prolapse was confirmed. Only a small number of patients (11) had a disc protrusion at operation. Of these patients, eight had an anterior thecal deformity on radiographs exposed in the standing position which was completely reduced in the stooping position.

Adult↗
PubMed1977

Distribution of calcification within the pineal gland.

The distribution of calcification in the normal pineal gland was investigated by a macroradiographic in vitro technique. The centre of calcification in 72 out of 73 glands studied was within 2 mm of the mid-line of the gland. In one gland it lay 2.6 mm from the mid-line. These findings explain the accepted normal limits for pineal calcification on the standard semi-axial projection of the skull of up to 2 mm to either side of the mid-line and the occasional measurement in excess of this in normal subjects.

Adult↗