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Richard J Johnson

Researcher at University of Manchester

Publications -  48
Citations -  1303

Richard J Johnson is an academic researcher from University of Manchester. The author has contributed to research in topics: Magnetic resonance imaging & Cancer staging. The author has an hindex of 20, co-authored 48 publications receiving 1277 citations.

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The significance of residual mediastinal abnormality on the chest radiograph following treatment for Hodgkin's disease.

TL;DR: Following mediastinal radiotherapy (XRT) administered either alone or combined with CTR, residual mediastsinal abnormalities do not indicate the need for further treatment, however, following CTR alone, such abnormalities may signify persisting disease and it is recommended that XRT be considered for these patients.
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Gastrostomy insertion: comparing the options--PEG, RIG or PIG?

TL;DR: PIG is a very effective gastrostomy method; it has better long-term results than RIG and is successful where conventional PEG has failed, and combines advantages of both traditional methods with a higher success and lower re-intervention rate.
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Staging of colorectal cancer.

TL;DR: It is important that all radiology and nuclear medicine specialists are familiar with and understand how colorectal carcinoma is accurately staged and the role and benefits of PET/CT in staging this lethal disease.
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Staging, volume estimation and assessment of nodal status in carcinoma of the cervix: Comparison of magnetic resonance imaging with surgical findings

TL;DR: Pre-operative magnetic resonance imaging was carried out in 50 women scheduled for operative treatment of invasive carcinoma of the cervix, and differentiation between malignant and reactive lymphadenopathy was not reliably achieved on MRI, and in several patients, metastases were present in normal-sized lymph nodes.
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Magnetic Resonance Imaging in the Management of Suspected Spinal Canal Disease in Patients with Known Malignancy

TL;DR: Magnetic resonance imaging of the entire spine is the investigation of choice in patients with known malignancy and suspected spinal canal disease.