Search PubMed⌕ Search

Biomedical subjects

G H Ritsema

Publications and source records attributed to G H Ritsema.

29 records · Page 2Linked to original sources
PubMed1985

Cholecystokinetic cholecystography.

A prospective clinical trial of 100 patients receiving either intramuscular ceruletide or a fatty meal to contract the gallbladder after oral cholecystography is described. The percentage reduction of the gallbladder area after 30 min of stimulation was not significantly greater with ceruletide (49%) than with a fatty meal (44%) (t-test: p greater than 0.3). Ceruletide caused significantly more adverse reactions than a fatty meal (Fisher test, p less than 0.01). The diagnostic value of routine cholecystokinetic stimulation is doubtful, since the diagnosis changed after the contraction in only 1 patient.

Biliary Tract Diseases↗
PubMed1983

Ectopic right bronchus: indication for bronchography.

Ectopic right-sided bronchus is a rare anomaly. In this retrospective study, eight patients are described. All were from a population that clinically was suspected of suffering from chronic bronchitis. In one patient, the ectopic bronchus was missed on bronchoscopy but not on bronchography; in the other seven patients bronchoscopy and bronchography both revealed the ectopic bronchus. The first patient had a persistent inhomogeneous consolidation only in the ectopic area with extensive bronchiectasis; one patient had slight bronchiectasis; the other six patients had none of these pathologic alterations. Only in the first patient did the anomaly have therapeutic consequences, as there was an extensive bronchiectasis. In patients with a persistent inhomogeneous consolidation, only on the site of the apical segment of the right upper lobe may an ectopic bronchus with extensive bronchiectasis be suspected. In such patients, a bronchographic examination is indicated.

Adult↗
PubMed1982

Quantifications and sensitivity in bone scanning in the detection of bone metastases.

In a prospective study the whole body retention (WBR) and several bone-soft-tissue ratios (BSR) were determined in 50 consecutive clinical patients. The scans were studied in the usual way. Three independent observers found an increased uptake in 5 scans. The rest activity was calculated by expressing the WBR, measured at 24 h to a percentage of the WBR measured at 5 min. It appeared that in the same 5 patients, being observed visually to show an increased uptake, the rest activity was pathologically higher than the rest activity in the 'normal' patients. The L2-flank ratio also differentiated in the five scans having the observed increased uptake. The same patients with an increased uptake were differentiated by three observers with the help of quantification. The extra use of the WBR and the BSR determinations in the detection of bone metastases appeared to be absent in this study. The sensitivity was not increased.

Adult↗
PubMed1981

Communicating semimembranoso-gastrocnemial Bursa.

In a prospective study we examined lateral radiographs of the knee joint before and after flexion exercises, in 300 consecutive arthrograms. We use the following definitions: (a) a popliteal or Baker's cyst is a clinical diagnosis and implicates a palpable popliteal mass, mostly in adults; (b) a communicating bursa is the semimembranoso-gastrocnemial bursa (s.g. bursa) communicating with the knee joint which is visible in the lateral arthrogram of the knee. It appears that the communicating s.g. bursa is more often present with knee pathology. The bursa has no other clinical or therapeutic significance. Such a bursa is not more commonly seen with an effusion. A bursal or synovial rupture is not correlated with knee pathology. Arthrography does not cause synovial rupture and seldom causes a bursal rupture.

Bursa, Synovial↗